Product category: Discrete Power Devices
News Release from: Fairchild Semiconductor | Subject: FDS7066SN3
Edited by the Electronicstalk Editorial Team on 30 April 2003
SyncFET saves space, heat
and time for PSUs
The FDS7066SN3 is the first in a new family of MOSFETs using SyncFET silicon technology to improve performance and reduce overall system cost in synchronous DC/DC buck convertor designs
The FDS7066SN3 is the first in a new family of mosfets using Fairchild's FLMP (flip leaded moulded package) and SyncFET silicon technology to improve performance and reduce overall system cost in synchronous DC/DC buck convertor designs. With an integrated Schottky diode, the device's SyncFET technology offers similar performance (high power and current handling) of a separate mosfet and Schottky rectifier in one package.
This article was originally published on Electronicstalk on 30 April 2003 at 8.00am (UK)
Related stories
Power design centre focuses automotive expertise
Michigan centre enables Fairchild engineers to work directly with automotive customers to design and optimise the next generation of power management and control solutions
Translators enable design independence
Low-voltage dual-supply voltage translator increases design flexibility by allowing designers to control the direction of each bit individually
This integration reduces space by as much as 50% and provides cost savings and manufacturing throughput (or "time") savings.
By using Fairchild's highly efficient FLMP SO-8 packaging combined with SyncFET technology, the performance improvements are even greater.
With high thermal efficiency (thermal resistance junction-to-case of 0.5degC/W) and a very low on resistance (4.5mohm typical at 10V), the 30V, 19A N-channel mosfet is an ideal solution for the low-side switch used in synchronous buck DC/DC convertor applications.
Further reading
Load switches improve thermal performance
Load switches integrate current-limited P-channel MOSFET with protection and control features to simplify design, reduce component count and minimise board space
Two-way voltage translator goes low
Single-bit bidirectional voltage translator is guaranteed to operate from 1.1 to 3.6V
Making use of technology patented by Fairchild, the SyncFET monolithic die solution incorporates a titanium Schottky diode with a PowerTrench mosfet, allowing Fairchild to match the performance of the Schottky to the requirements of the mosfet to prevent the mosfet body diode from turning on.
This greatly improves reverse recovery gate charge (QRR) and reverse recovery time (trr) characteristics - the FDS7066SN3 has a QRR of only 28nC and a trr of 26.6ns (both at IF=19 A, di/dt=300A/us).
Reducing the reverse recovery charge also helps to increase the overall operating efficiency in the DC/DC convertors.
In addition, replacing the lower mosfets with a SyncFET of the same on-resistance can result in substantial efficiency improvements upwards of 5%.
Fairchild's FLMP package offers the thermal performance and very low on resistance of a much larger TO-263 in a standard SO-8 package outline.
This packaging allows the FDS7066SN3 to achieve thermal resistance junction-to-case of 0.5degC/W compared with the 25degC/W of a standard SO-8.
It also improves power dissipation: a standard SO-8 dissipates 2.5W versus a FLMP, which dissipates 3W.
Combined with SyncFET technology, FLMP packaging allows products to run much cooler to enhance system reliability, and cut board space by half, to greatly simplifying layout and reduce component count.
The FDS7066SN3 is part of Fairchild's complete portfolio of SyncFETs, offering a wide range of single and dual solutions in industry standard and tailored pinouts.
• Fairchild Semiconductor: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• NEW
• Electronicstalk Home Page
Related Business News
Tpo Unveils Embedded-on-glass Ambient Light Sensor...
...Technology For Mobile Devices. Tpo Displays has introduced its Ambient Light Sensor (ALS) technology, a development for low-temperature polysilicon (LTPS) applications.
Trusted Resource for the Working RF Engineer
[Components] Broadband YIGs Yield Fundamental Tones To 20 GHz To switch or not to switch? These lines of YIG-tuned sources offer low-phase-noise coverage of 2 to 20 GHz continuously and by switching between two frequency bands.
Taiwan stocks end down in biggest...
...drop in over 1 yr. Taipei, July 27 (Reuters) - Taiwan shares fell 4.22 percent on Friday to their lowest close in three weeks, marking their largest one-day percentage drop in more than a year, after a sell-off on Wall Street hurt big exporters such as TSMC .
Nippon Oil Aug refining seen flat, eyes Sudan crude
Tokyo, July 27 (Reuters) - Japan's top oil refiner Nippon Oil Corp. will keep its August processing volumes steady versus a year ago to meet summer gasoline demand and is seeking more Nile Blend crude to meet higher utility use.
Fluor Gains Eastman Chemical Gasification Plant Feed Work
Fluor Corporation announced today that it was selected by Eastman Chemical Company to provide front-end engineering and design work for a $1.6 billion gasification project along the Texas Gulf Coast.
Search the Pro-Talk network of sites
