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Operator
Good afternoon, and welcome to the Power Integrations third-quarter 2003 earnings results conference call. Today's call is being recorded. At this time I would like to turn the conference over to the Chief Financial Officer, Mr. John Cobb. Mr. Cobb, please go ahead, sir.
John Cobb - Chief Financial Officer, VP of Finance and Administration
Good afternoon. Thank you for joining us to discuss Power Integrations' third-quarter financial results. I'm John Cobb, Chief Financial Officer of Power Integrations, and with me today is Balu Balakrishnan, President and Chief Executive Officer.
Before we begin with an overview of the quarter, I would like to remind you that our discussion today will include forward-looking statements reflecting management's current forecasts of certain aspects of the company's future business. Forward-looking statements are denoted by such phrases and words as "will," "believe," "should," "expect," "outlook," "anticipate," and similar expressions that look toward future events or performance. Forward-looking statements are based on current information that we have assessed but which by its nature is dynamic and subject to rapid and even abrupt changes. We may also make forward-looking statements in responds to your questions. Our forward-looking statements are subject to risks and uncertainties which may cause actual results to differ materially from those projected or implied in our statements. Risks and uncertainties affecting our business which could cause actual results to differ materially are discussed in our most recent reports on Forms 10-K and 10-Q filed with the SEC.
I will now turn the call over to Balu, who will take you through an overview of the business. Balu?
Balu Balakrishnan - President, Chief Executive Officer, Director
Thank you, John, and good afternoon, everyone. We're very pleased to report record revenues of $34.5 million, which is 15 percent higher than our previous record set before the downturn. This is a significant milestone for Power Integrations, and is in contrast to most other semiconductor companies, which are still well below their peak revenue levels.
While our revenues grew 23 percent year-over-year, net income more than doubled to $4.8 million or 15 cents per share. This was primarily driven by manufacturing cost reductions and our operating leverage.
As we explained previously, we have taken proactive pricing actions in certain cases over the last few quarters to increase our market penetration in order to maximize our top and bottom line growth. This strategy clearly helped us in the third-quarter in achieving sequential growth -- revenue growth of 16 percent. As a result, despite a reduction in gross margin, our operating margin improved to 18.7 percent, and we believe we are on track to achieve 20 percent operating margin in the fourth quarter.
Our diversification and market penetration strategies have been instrumental in our market share growth and in growing those revenues to these record levels. Third-quarter revenues were strong across all three of our major markets -- communications, computer, and consumer. Our chief revenue growth drivers continued to be TOPSwitch-GX and TinySwitch-II. In addition, we started shipping production quantities of LinkSwitch and DPA-Switch, our latest products introduced last summer. We received two additional U.S. patents in the quarter, bringing the total to 72 U.S. and 58 foreign patents.
With that introduction, I will now discuss the performance in each of our market segments during the third quarter. Revenues from our communications segment were up substantially from the second quarter as end-demand for cell phone markets strengthened. Shipments to our top-tier cell phone customers were up significantly, while shipments to other customers -- primarily Chinese manufacturers -- were relatively flat.
Revenues from our computer and consumer segments each increased significantly from the preceding quarter. In the computer segment, substantial growth in revenues were driven primarily by our market share growth in PC standby and LCD monitors. Year-over-year revenue from LCD monitors grew 68 percent, and our revenue from PC standby grew 51 percent. We believe our dramatic growth in PC standby was mainly driven by the decision of many manufacturers to meet the 1-watt energy efficiency requirement. We expect continued strength in the computer segment, primarily driven by further market penetration into LCD monitors and PC standby.
Revenues from the consumer segment were also up over the previous quarter, driven by growth in set-top boxes, DVD players, and home appliances. Year-over-year, we doubled our revenue in DVD players, tripled our revenue in set-top boxes, and increased our home appliance revenue by 48 percent. Our growth in DVD players and home appliances was mainly driven by the growing need for manufacturers to meet new global energy efficiency guidelines. For this reason, both TinySwitch-II and TOPSwitch-GX are being designed into latest generation of DVD players and home appliances. We expect our market penetration in the consumer segment to continue.
Revenues from the industrial segment were relatively flat sequentially. Year-over-year, the industrial segment grew 36 percent. We are particularly pleased with our growth in this segment because of the diversity of customers and applications.
Our revenue mix by market for our 2003 is expected to be -- communications, 37 percent; consumer, 27 percent; computer, 23 percent; industrial, 8 percent; and other, 5 percent.
Now let me turn to the status of our products. TOPSwitch-GX and TinySwitch-II continued their design wins in all of our markets. Both product families, introduced more than 2.5 years ago, were once again the main revenue growth drivers in the third quarter.
TOPSwitch-GX, which addresses applications between 10 and 250 watts, has design wins in a wide range of applications, including -- set-top boxes, LCD monitors, LCD projectors, printers, audio amplifiers, DVD players, and a number of industrial products. We remain very pleased with the number and diversity of design wins we have achieved with TOPSwitch-GX.
TinySwitch-II, which addresses applications between 2 and 20 watts, also achieved design wins in all four of our major market segments. Design wins included -- cell phone chargers, PC standby, DVD players, home appliances, and industrial applications.
We anticipate the level of design wins for TinySwitch-II and TOPSwitch-GX to remain strong over the next several quarters, contributing significantly to revenue growth in 2004 and beyond.
Turning to our most recently introduced products, DPA-Switch and LinkSwitch -- DPA-Switch, our first DC-to-DC product family designed for distributed power applications in the 0 to 100-watt range, was introduced in June of 2002. In the third quarter, DPA-Switch had several low-volume design wins in the communications segment, and one in the industrial segment. Between these new design wins and those secured in the previous two quarters, DPA-Switch has been designed into products in each of our target DC-to-DC application areas, namely -- telecom, networking, digital phones including Voice Over IP, servers, and industrial. We started production shipments of DPA-Switch at the beginning of the third quarter, and expect increased production shipments based on new design wins over the next several quarters.
We continue to see a lot of design activity with DPA-Switch. Because the DC-to-DC market is highly fragmented and is a relatively new market for us, we expect the DPA-Switch to market to grow gradually over the next several years.
LinkSwitch, which was introduced in September of 2002, is intended to help manufacturers replace bulky, inefficient linear transformers -- also known as energy vampires -- used in the 0 to 3 watt range. In the third quarter, LinkSwitch had design wins across all four of our major markets. LinkSwitch design activity remain strong primarily in cell phones, home appliances and industrial applications. We expect continued growth from LinkSwitch in the fourth quarter and significant growth in revenues over the next several years.
Based on the latest available information, our forecast for revenue mix by product family in 2003 is changed slightly from the last quarter. TOPSwitch-I and II is predicted to be at 18 percent, TOPSwitch-FX and GX at 27 percent, TinySwitch-I and II at 53 percent, and LinkSwitch and DPA-Switch at 2 percent.
I would now like to review the status of our long-term initiatives to reduce manufacturing cost and provide additional capacity over the next two years. We started testing a portion of our products offshore in the second quarter. We are on track to transfer an increasing percentage of our products offshore over the next two years. We're also on track on qualification efforts with our third foundry, VNB (ph).
We stated in the last conference call that we expected to purchase our San Jose facility by September 30th, which would provide us with significant savings in both manufacturing cost and operating expenses on an ongoing basis. The closing of the transaction has been pushed out by one month due to a delay in the resolution of typical real estate issues. However, the financial impact of this delay is minimal, and John will explain the details.
In addition to the strategic cost-saving initiatives just mentioned, we're also continuing our efforts to reduce manufacturing costs through yield improvements and the reductions of test time, silicon cost and packaging costs. We're also working on technology and design innovations to reduce the silicon area of our chips. These efforts should provide us with continuous manufacturing cost reductions for the foreseeable future, giving us pricing flexibility to continue our profitable growth. This is especially important, as we have yet to see firming of discrete pricing.
Now on to our near-term outlook. In the third quarter, our turns business was 73 percent of our revenue. We are expecting a similar level of turns business in the fourth quarter. It appears the high level of turns business is here to stay -- which limits visibility, making quarterly forecasting more difficult. However, our business model allows us to be successful in this high turns environment. We have relatively few products, and our products have long life cycles. This allows us to cost-effectively maintain sufficient inventory to meet customers' turns demand.
Based on the available information, we estimate the revenues in the fourth quarter will be flat to up 4 percent sequentially. In addition, our ongoing cost reduction efforts are expected to improve our operating margin to 20 percent in the fourth quarter.
To summarize, I feel as good as ever about our financial strength, market leadership, and future prospects of this company. We continue to make significant gains in market share, and we are successfully diversifying our product offerings and market opportunities. Our cost reduction programs will allow us to further improve operating leverage and support our long-term goal of maximizing our top- and bottom-line growth. We are confident that the continued execution of both our diversification and market penetration strategies will help us achieve our market share and financials goals for this year, and we are well-positioned for continued growth and success in 2004 and beyond.
I will now turn the call over to John to review the financials. John?
John Cobb - Chief Financial Officer, VP of Finance and Administration
Thank you, Balu. As you have heard, we had an outstanding third quarter. Our revenue grew 23 percent over the prior year, while our net income more than doubled, and we continued to strengthen the balance sheet. Our focus on revenue growth and cost reduction is clearly working. Now on to the details.
Net revenues in the third quarter were $34.5 million, an increase of 23 percent from $28.2 million reported in the same period last year, and an increase of 16 percent from $29.8 million reported in the second quarter.
In the third quarter, our gross margin was 47.2 percent of net revenues. This compares with 42 percent in the third quarter of 2002 and 50.8 percent last quarter. The sequential declining gross margin was due to the proactive pricing actions we previously discussed.
In the fourth quarter, we expect our gross margin to improve to a range a 48 to 49 percent as a result of our ongoing cost reduction efforts. In addition, as I will explain later, we will receive a onetime credit from the buildings purchase that will add an additional 1 percentage point to the gross margin.
Income from operations in the third quarter was $6.5 million or 18.7 percent of net revenues, compared with $2.9 million or 10.4 percent in the same period last year and $5.2 million or 17.5 percent last quarter. We believe we're on track to achieve our stated goal of a 20 percent operating margin in the fourth quarter.
Net income for the third quarter was $4.8 million or 13.8 percent of net revenues, compared with $2.3 million or 8.2 percent in the same period last year and $4.2 million or 13.9 percent last quarter.
Earnings per share for the third quarter with 15 cents on approximately 32.2 million shares outstanding. This compares with 8 cents per share on approximately 29.1 million shares outstanding in the third quarter of 2002 and 13 cents per share last quarter.
Looking at operating expenses -- R&D spending in the third quarter was $4.3 million or 12.4 percent of net revenues, compared with $3.6 million or 12.6 percent in the same period last year and $4.2 million or 14 percent last quarter.
Sales and marketing and expenditures, which include applications engineering, were $3.8 million in the third quarter or 11.1 percent of net revenue, compared with $3.8 million or 13.3 percent in the same period last year and $3.9 million or 13.2 percent in the prior quarter.
G&A spending in the third quarter was $1.7 million or 4.9 percent of net revenues. This compares with $1.6 million or 5.7 percent in the same period last year and $1.8 million or 6.1 percent in the prior quarter.
Overall, our operating expenses were slightly down from the prior quarter. As we have discussed in previous quarters, we're adding sales and application engineering resources to support our revenue growth objectives. In addition, we're investing in strategic activities to support our long-term capacity requirements and cost objectives, such as qualifying an additional foundry and increasing our offshore test capability. In the third quarter, we were able to offset this incremental spending through constraints on discretionary spending. In the fourth quarter, we expect the incremental spending will be offset by the benefits from purchasing our building. As a result, our fourth quarter operating expenses should be flat with the third quarter.
Moving to the balance sheet -- cash at the end of the third quarter was $130.1 million, an increase of $13.2 million from last quarter. The total purchase price of the buildings is $30 million. We paid $3 million in the second quarter, and the remaining $27 million will be paid in the fourth quarter.
Net accounts receivable were $11.9 million at the end of the third quarter, an increase from the $11.1 million in the second quarter. Day sales outstanding on net receivables at the end of the quarter were 31 days compared to 34 days the preceding quarter.
Net inventory at the end of the third quarter was $19.8 million, a decrease from the $20 million last quarter. Inventory turns in the third quarter were 3.7, compared with 2.9 last quarter. In the fourth quarter, we expect our inventory turns to remain within our target range of 3 to 4.
Now let me spend a moment explaining the financial impact of purchasing our building and the impact of the delay in closing. The purchase of the buildings will provide a onetime financial benefit in the fourth quarter and also ongoing financial benefits.
First, we will receive a onetime benefit of $813,000 from the reversal of deferred rent. In accordance with generally accepted accounting principles, we have been accruing the difference between the rent paid and the straight line rent over the term of the lease. We had originally expected to receive a onetime benefit in the third and fourth quarters. Since the purchase of the buildings had been delayed, we will receive all of the benefit in the fourth quarter. As of the end of the third quarter, we had accrued $813,000 in deferred rent. This amount will now be reversed in the fourth quarter. As a result, our operating expenses in the fourth quarter will be reduced by $440,000. The remaining $370,000 will benefit our gross margin in the fourth quarter.
The second financial benefit is that owning the buildings will lower our ongoing facilities cost approximately $600,000 per quarter. This ongoing cost reduction begins in the fourth quarter and will benefit both operating expenses and production costs.
Our financial outlook, which includes the benefit from the buildings purchase for the fourth quarter and for 2003, is as follows. We expect revenues in the fourth quarter to be flat to up 4 percent sequentially. Gross margin is expected to be in the range of 49 to 50 percent. Operating expenses are expected to be relatively flat sequentially. Earnings per share in the fourth quarter are expected to be in the range of 16 to 18 cents. We expect 2003 revenues to increase 18 to 20 percent over 2002. Gross margin for the year is expected to be in the range of 49 to 50 percent. Earnings per share are expected to be in the range of 57 to 59 cents.
That concludes our prepared remarks. Before we ask for questions, we would like to let you know that we plan to present at the following conferences -- AeA Classic Conference in San Diego on November 3rd and 4th; Morgan Stanley Small Cap Executive Conference in Scottsdale on November 17th; Lehman Brothers Semiconductor and Computer Systems Conference in San Francisco on November 20th; First Albany Growth Conference in New York on December 10th; Raymond James Technology Conference in New York on December 11th; and Needham & Company's Sixth Annual Growth Conference in New York in the first week of January.
Operator, can you please open the lines for questions?
Operator
Certainly. Today's question and answer session will be conducted electronically. (OPERATOR INSTRUCTIONS) Jim Liang, Pacific Growth.
Jim Liang - Analyst
A couple of questions. First of all, as far as the December quarter revenues being flat to up 4 percent -- can you just talk about your expectations of the sequential change of the -- couple of the end-market segments you serve?
Balu Balakrishnan - President, Chief Executive Officer, Director
Historically, the fourth quarter has been relatively flat with Q3. So we expect all of our markets to be relatively flat. We don't have any more information than that. Based on the forecast, based on bookings to date, we believe it will be in the 0 to 4 percent range.
Jim Liang - Analyst
Great. Can you talk about 10 percent customers, please?
John Cobb - Chief Financial Officer, VP of Finance and Administration
Yes, we had three customers in the quarter that were 10 percent customers. The first two were distributors -- Memec, which was at 22 percent, Synex (ph) at 22.5 percent, and Samsung at 11.3 percent. And that only includes Samsung's direct shipments.
Jim Liang - Analyst
Excellent. And over the next twelve months, which kind of end markets do you see as the -- kind of on a relative basis, the most significant growth drivers for you?
Balu Balakrishnan - President, Chief Executive Officer, Director
Well, in terms of end-markets, we don't know any more than you do. But in terms of the growth areas -- certainly LCD monitors, DVDs, set-top boxes, home appliances, PC standby -- those are the major growth areas.
Jim Liang - Analyst
Right. Can you give us an update on the opportunities in cordless phone market?
Balu Balakrishnan - President, Chief Executive Officer, Director
Yes, the cordless phone markets is predominantly linear today. They use the transformer-type chargers. There was an ENERGYSTAR requirement to reduce the standby convention starting January of 2004. Unfortunately, that has been postponed for a period of time due to pressure from manufacturers who wanted more time to comply with those regulations. So many of the designs related to cordless phones have been delayed at this point.
Jim Liang - Analyst
So when do you expect that to come into schedule?
Balu Balakrishnan - President, Chief Executive Officer, Director
ENERGYSTAR is going to have a meeting with the manufacturers to decide the new date, and they don't have a date at this time. All they know is that the commitments of the manufacturers made for January is no longer true.
Operator
Brian Wu, Bear Stearns.
Don Anskman - Analyst
Hi, this is Don Anksman (ph) calling in for Brian Wu. You mentioned that you're not seeing firming of prices in discrete components. I was wondering if you could just comment on what you are seeing in terms of lead times, or any change in utilization, or even any visibility into the next quarter -- or Q4 or Q1?
Balu Balakrishnan - President, Chief Executive Officer, Director
Yes, we have heard the same reports you have heard about discrete prices firming. But we haven't seen any signs of it in our area -- meaning in high-voltage MOSFETs (ph) or controllers or even the passive components.
The trend in the discrete components has been down. It has been down throughout the year. It has been going down at single-digit annual rates versus the double digits we had in the last two years -- in 2001 and 2002. But we haven't seen any change in the trends so far.
Don Anskman - Analyst
Okay. Are you seeing -- any comments on lead times or even visibility into Q1?
Balu Balakrishnan - President, Chief Executive Officer, Director
Nothing our customers have told us so far. They seem to be able to obtain those parts. There's only one component we've seen that the lead times and prices firm up on, which is a shark diode (ph) on the secondary side. But that's not something we replace; that's there in all power supplies.
Don Anskman - Analyst
Okay. I had another question -- one of your competitors has been very vocal about some new business and design wins with one of the large cell phone manufacturers. I was wondering if you had any comments on that?
Balu Balakrishnan - President, Chief Executive Officer, Director
Sure. First of all, this is not a surprise to us. They have been working with that subcontractor. They have had a very close relationship with them because this group in our competitor's company is actually -- used to be part of the Samsung, if you remember. So we were aware that we may lose this design for various reasons -- because of the relationship and so on. And so that has been already factored into our projections.
So this didn't come as a surprise to us. And it's not the first time we've lost designs to our competition. We lose them once in a while. And in many cases, we've gotten them back. So we don't think it's a significant impact. In fact, if you look at our Samsung share, we have been growing. We grew from 7.4 percent to 11.3 percent in Q3 for shipments to Samsung.
Don Anskman - Analyst
Okay. That is a percentage of your business that is from Samsung? Or that's percentage of (multiple speakers)
Balu Balakrishnan - President, Chief Executive Officer, Director
That's a percentage of business to Samsung.
Don Anskman - Analyst
Okay. I just had one last question about -- I guess you talked a little bit about LinkSwitch, and I was wondering when -- I guess, two questions. In terms of revenues for 2004, do you have any insight into how that product will ramp? And then, can you talk about I guess any percentage of business in the quarter alone?
Balu Balakrishnan - President, Chief Executive Officer, Director
The 2004, we'll give you a forecast in January. But just to give you some color on the LinkSwitch design activity -- we have significant design activity in cell phones, home appliances and industrial applications. And I think some of you noticed that I dropped the cordless phone from that list, because cordless phone was one of our target markets. It's only a short-term issue, in the sense that we were hoping that some of these manufacturers would switch from the transformers to LinkSwitch before the end of the year. But they are asking for more time because I think they have pretty strong pressures -- cost pressures, and they don't want to go through the cost of redesigning the products -- at least not this year.
But that doesn't really change anything for LinkSwitch long-term -- certainly for 2004 and beyond. All that means is that some of our earlier designs will be in other areas, like cell phones and appliances and industrial. And we're having actually quite a bit of activity in all three of those areas. So, nothing really changes, other than the fact that the cordless phones designs are not happening this year.
Operator
Tore Svanberg, U.S. Bancorp Piper Jaffray.
Jeremy Kwan - Analyst
This is actually Jeremy Kwan (ph) calling for Tore. Can you talk a little bit about what is driving the strength in your revenue growth so far? Is it more seasonal, or is it being driven by new design wins and new applications?
Balu Balakrishnan - President, Chief Executive Officer, Director
Well, it's hard to tell the difference, but we think there are three separate factors. One is of course that we are growing our business in all of these areas. We certainly can monitor our market share growth, and we are definitely growing. Second of course is seasonality. Q3 and Q4 are strong quarters for us.
But on top of those two, we definitely see that the end markets are coming back not very strongly. They seem to be coming back slowly. And exactly how much the end market is improving is hard to separate at this point. It will be easier to do once we have four or five quarters of information.
Jeremy Kwan - Analyst
Okay. And you mentioned that the Chinese handset manufacturers were kind of flattish this quarter. Any sense of where that could go in Q4?
Balu Balakrishnan - President, Chief Executive Officer, Director
To the extent we can tell, it's going to stay relatively flat from the forecast we have.
Jeremy Kwan - Analyst
Okay. And last question -- it looks like you guys are making some pretty good progress on both DPA-Switch and LinkSwitch. Are there any new products that we can start to focus on now?
Balu Balakrishnan - President, Chief Executive Officer, Director
Yes. There are a number of new products -- and again, the company's policy -- we have stopped pre-announcing those products. As soon as they are ready for introduction, you will hear from us.
Operator
Gus Richard, First Albany Corporation.
Gus Richard - Analyst
Just real quick, I missed it -- what is the impact of the purchase of the building on GM and op-ex for the fourth quarter?
John Cobb - Chief Financial Officer, VP of Finance and Administration
In the fourth quarter, we'll get a onetime benefit which will be $373,000 to gross margin, which equates to about 1 percentage point. And then also a onetime benefit of $440,000, which would be in our operating expenses. So we said our operating expenses would be flat from Q3 to Q4 with that credit, so they would have -- otherwise have gone up. And then, beginning in fourth quarter, basically beginning November 1, on a quarterly basis we'll get savings of about $600,000. Obviously we won't get all the benefits in the fourth quarter, since we're only going to have the building for two months. But on an ongoing basis, it will save us about 600,000.
Gus Richard - Analyst
Right, okay. And that's evenly split between gross margin and op-ex?
John Cobb - Chief Financial Officer, VP of Finance and Administration
Slightly more to operating expenses but pretty close to equal.
Gus Richard - Analyst
And then sort of moving on -- can you talk a little bit about linearity in the quarter? I noticed your DSOs came in a little bit -- declined sequentially, and I was wondering how the linearity looked in the quarter?
John Cobb - Chief Financial Officer, VP of Finance and Administration
The third quarter is typically more back-end loaded -- and when I say back-end loaded, it's not like a software company, but more demand in September. That was the way this last quarter was, but I have to say from a historical perspective, it was less back-end loaded than what we have seen in prior years. So July, August, and September were all fairly strong relative to our revenue growth.
Gus Richard - Analyst
So it was -- relative to historics, it was more linear throughout the quarter and less back-end loaded.
John Cobb - Chief Financial Officer, VP of Finance and Administration
Last back-end loaded, but still September was the biggest month.
Gus Richard - Analyst
Got it. Sort of based on your guidance for product mix for the year -- can I assume that TOPSwitch was essentially flattish sequentially, Tiny was up maybe 18 percent sequentially, and GX and FX 16 percent sequentially? Am I in the ballpark here?
John Cobb - Chief Financial Officer, VP of Finance and Administration
Another one of your ballpark questions -- yes, that is in the ballpark.
Gus Richard - Analyst
In the ballpark -- was Tiny the fastest-growing product?
John Cobb - Chief Financial Officer, VP of Finance and Administration
Actually, GX was -- in fact, most of this year, GX has been our fastest-growing product. Last year, Tiny-II was our fastest-growing, but this year it's been more GX that has grown faster (multiple speakers) especially on a percentage basis.
Gus Richard - Analyst
And then -- just so I can tie the knot, what was the average selling price in the quarter?
John Cobb - Chief Financial Officer, VP of Finance and Administration
50 cents.
Gus Richard - Analyst
Okay -- no change sequentially?
John Cobb - Chief Financial Officer, VP of Finance and Administration
No.
Operator
Todd Cooper, Stephens Inc.
Todd Cooper - Analyst
Balu, gross margin being down was somewhat of a surprise to me. Was 100 percent of that drop the cost to your aggressive pricing activities?
Balu Balakrishnan - President, Chief Executive Officer, Director
Absolutely. We made, as I said earlier, some proactive pricing decisions, and we were actually more successful than we thought in increasing our business in those specific customers. That hit our market more than we anticipated. And of course, on the other side, our revenue was also more than we anticipated.
Todd Cooper - Analyst
And will we see the result of that in the next quarter, or would it play out for a twelve-month period, or is it short-term oriented?
Balu Balakrishnan - President, Chief Executive Officer, Director
Well, the pricing is essentially permanent, because we don't -- we haven't in the past increased our prices. However, we do have many cost reduction efforts in place, and they will help us improve the gross margin next quarter, as we have said. And we have known that. We know that the cost reductions are coming. And so we took the opportunity to take advantage of our seasonally-strong Q3 and Q4 to maximize our bottom-line and the top-line.
John Cobb - Chief Financial Officer, VP of Finance and Administration
And Todd, it's important to note that while obviously, gross margin is important, we're focused more on our operating margin, which we increased from 17.5 percent to 18.7 percent. So we are growing revenue, controlling our operating expenses, and that way we can move up our operating margin.
Todd Cooper - Analyst
Okay, very good. And other than the Fairchild and Samsung issue, has there been any other change on the competitive landscape?
Balu Balakrishnan - President, Chief Executive Officer, Director
No, just that we continue to see price erosion in discrete, and also our competitors are being more aggressive in their pricing.
Operator
Clark Fuhs, Fulcrum Global Partners.
Clark Fuhs - Analyst
Yes, thanks. Your gross margin guidance was 48 to 49 percent, but that gross margin guidance for the third quarter had the onetime benefit of 339 or so baked into it. So, relative to your guidance, you actually hit the low-end of the guidance. Am I calculating all those numbers right?
John Cobb - Chief Financial Officer, VP of Finance and Administration
No, you're not. There was no -- in Q3, there was no impact from the building in our prior guidance.
Balu Balakrishnan - President, Chief Executive Officer, Director
And that's because the building was supposed to close at the end of the third quarter.
John Cobb - Chief Financial Officer, VP of Finance and Administration
We were previously expecting to have a gross margin impact in Q4. And as it turns out, we're still going to have to gross margin credit in Q4, because previously it was at the end of the quarter, and now it's at the start of the quarter. So our previous guidance of 48 to 49 percent had no building credit in it. So the 47.2 versus the 48 to 49 cents -- that's an apples-to-apples comparison.
Clark Fuhs - Analyst
Okay, great. And then -- if you characterize your rate of design wins, did you have more this quarter than last overall, and has that number been steadily growing?
Balu Balakrishnan - President, Chief Executive Officer, Director
Well, we had more designs in the first and second quarter, which is not -- which is quite normal, because if you look at our seasonality, most of the production occurs in Q3 and Q4. And for those production -- the production of products, they make design decisions in Q4 and Q1.
Clark Fuhs - Analyst
But I mean from a year-on-year perspective -- that year-on-year comparison you would say is trending upward?
Balu Balakrishnan - President, Chief Executive Officer, Director
We're very comfortable with the design activity and design wins we're getting in all of our four products.
Operator
(OPERATOR INSTRUCTIONS) Lee Zeltser, Needham & Co.
Lee Zeltser - Analyst
Hey guys, a couple of questions. You mentioned most of the growth year-over-year in the revenue line was driven mostly by market share gains. Can you give us a sense qualitatively how much was driven by market share gains versus end-market growth? And kind of what we would expect going forward -- what type of market share growth rate we could expect, say, in the coming few quarters?
John Cobb - Chief Financial Officer, VP of Finance and Administration
As we have said all year -- and in fact, we started at the year that we expected our revenue to grow 15 percent based on our market share penetration, and then anything above that would be growth in the end-market. And that is still our view. So we would say -- of our current guidance, still 15 percent of that is coming from penetration. And on an ongoing basis, we would expect that that rate would continue -- at least continue.
Lee Zeltser - Analyst
So 15 percent should be a good baseline for market share growth. If you can help me, I think you mentioned pricing was flat sequentially? So just to get an understanding -- because the volume seem to go up -- or at least the overall shipment level seemed to go up -- why was gross margin down again? Was it a mix shift, or --?
Balu Balakrishnan - President, Chief Executive Officer, Director
No. We made -- we talked about this about three quarters ago, and -- we talked about it the last three quarters, I should say. We knew that we had significant cost reductions coming through. We also noticed that in specific situations with customers, we could get significantly higher revenue if we could make some proactive pricing proposals to them -- which we did, and we were very successful in doing that. And the whole idea was to maximize the top line and the bottom line. So we are sacrificing a few percentage points of gross margin so that we to get maximum EPS and EPS growth.
John Cobb - Chief Financial Officer, VP of Finance and Administration
I think -- to answer your question a little more -- so our overall ASP was 50 cents, which is consistent with actually the last several quarters. So, yes, while we did make price reductions -- because GX has actually been ramping faster than some of our other products and it has a higher ASP, that offsets it so we keep the average around 50 cents for the entire business.
Lee Zeltser - Analyst
Okay, so it's really a mix shift that kept the ASP flat, even though you made some pricing concessions (multiple speakers) just trying to reconcile that.
John Cobb - Chief Financial Officer, VP of Finance and Administration
That's right, that's correct.
Lee Zeltser - Analyst
Okay, and just lastly, the R&D seemed to go down quarter-over-quarter -- I'm not sure if you're had addressed it previously on the call, but maybe you could about that a little bit more.
John Cobb - Chief Financial Officer, VP of Finance and Administration
The R&D?
Lee Zeltser - Analyst
I think -- unless --
John Cobb - Chief Financial Officer, VP of Finance and Administration
R&D was up slightly.
Lee Zeltser - Analyst
Oh, I'm sorry; I'm looking at the sales and marketing, rather.
John Cobb - Chief Financial Officer, VP of Finance and Administration
Sales and marketing was down mainly because of discretionary spending. Travel and advertising were down from Q2 to Q3. We did add people in sales and field engineering, but because we reduced our spending in those other areas, it was a net reduction in sales and marketing.
Operator
Shawn Slayton, Ferris Baker Watts.
Shawn Slayton - Analyst
Hey Balu, hey John -- nice quarter. Balu, a follow-up to Todd's question -- talk a little bit about your expected competitive trends and the integrated solution market in general. In the September quarter, one of your competitors -- they introduced a family of online power supply switching regulators. They're selling them for 50 cents. They seem to be targeting similar operating voltages and end-market applications. Can you talk -- do you expect competition in the integrated solution space to increase going forward? I realize their product can infringe on your patent, etc., so they have to use more terminals -- and maybe it's an inferior solution, but -- can you just talk about the integrated market?
Balu Balakrishnan - President, Chief Executive Officer, Director
The players in the integrated market have not changed for the last seven or eight years. We always talk about the five large companies. But at any given time, one or two of them are more active than the other. For example, right now SP and Fairchild are the most active in the marketplace. We don't see Philips at all. We don't see Infineon. We see ON Semiconductor -- in the discrete area, they have a controller that they sell into the discrete marketplace. But we don't see them very active in the integrated market space.
Shawn Slayton - Analyst
What's preventing people from -- if there are attractive application and end-markets and total cost-of-ownership reductions and technology benefits -- what is keeping people from entering that space, or being more aggressive in that integrated space?
Balu Balakrishnan - President, Chief Executive Officer, Director
It's really the level of integration. We can do a much higher level of integration because of the intellectual property that we have. And the only thing they can do is a much lower level of integration and offer much lower prices. But the technology is not as cost effective. Their die sizes are significantly bigger -- 2 to 2.5 times bigger than our die sizes -- and they usually price them significantly lower than our product. But if you look at the system cost, we come out ahead. That's the reason we have been successful in spite of these big semiconductor companies offering the so-called similar products.
Shawn Slayton - Analyst
Okay, very good, thanks very much, I appreciate it.
Operator
Steve Smigie, Raymond James.
Steve Smigie - Analyst
Okay, great quarter. I was wondering if you guys would be interested in taking a stab at all at '04 revenue growth and gross margins?
John Cobb - Chief Financial Officer, VP of Finance and Administration
At this point, we haven't done our plan for 2004, so we're not really prepared. We have talked -- longer term, we expect our revenue to grow 25 to 30 percent, and the margins to be kind of ballpark-ish where we expect them to be for Q4. But in January, when we do our earnings announcement, we'll give specific guidance for 2004.
Steve Smigie - Analyst
Thanks. With regards to inventory, I believe you had started to build inventory in anticipation of a strong third quarter, and had even done it a little bit early in case things happen in the second quarter. And it didn't seem to pull back here too much after the strong quarter. I was just wondering what your strategy is with regards to inventory?
Balu Balakrishnan - President, Chief Executive Officer, Director
It did pull back in terms of turns. We went to 3.7 turns. So we have to -- in order to resolve this relative to the business level, now that our business level as significantly higher, we need the inventory. We want to be in the 3 to 4 turns range. If you go above 4, we will have difficulty meeting the turns demand.
Steve Smigie - Analyst
Fair enough. You had talked a little bit about linearity. I wonder if you could continue that on, and talk about what you have seen so far in October?
Balu Balakrishnan - President, Chief Executive Officer, Director
October is slightly weaker than September. September is stronger -- was stronger, at least to the extent we can tell now. There's obviously a week and a half to go, and we have very high turns business, so it may surprise us. I would say they are slightly lower.
The linearity, I would say -- the peaking in September and October is definitely more subdued this year than last year, so the third quarter was more linear and back-end loaded as it usually is. And the fourth quarter, from the forecast, appears is going to be more linear than the previous years -- even though we still think October will be the stronger month. But it is not as significant. In terms of the difference between October, November, and December, is much less according to the forecast compared with the previous years.
Steve Smigie - Analyst
Is this step off your (ph) -- over all your products in general? Or is that specific to any area?
Balu Balakrishnan - President, Chief Executive Officer, Director
We have not specifically looked at any particular product. I think it's pretty much -- it's pretty broad.
Steve Smigie - Analyst
And last question -- with regards to patents, you mentioned you had two new ones this quarter, and at least 10 last quarter. Could you discuss a little bit about what those are in regards to?
Balu Balakrishnan - President, Chief Executive Officer, Director
What those two patents are related to?
Steve Smigie - Analyst
Yes.
Balu Balakrishnan - President, Chief Executive Officer, Director
I don't have the information with me, actually. We normally don't discuss that, but it is available on our web site. If you go to our web site and look at the topmost patents, top two patents -- those are the ones that we issued in the third quarter.
Steve Smigie - Analyst
Okay. Thank you very much.
Operator
(OPERATOR INSTRUCTIONS) And gentlemen, it appears we have no further questions; therefore, I'd like to turn the call back over to you for any additional or closing remarks.
Balu Balakrishnan - President, Chief Executive Officer, Director
Thank you for joining us today, and we look forward to seeing some of you at the upcoming conferences. Thank you.
Operator
And ladies and gentlemen, this does conclude our conference today. We do thank you for your participation. You may disconnect at this time.