Fairchild Semiconductor Announces PWM Controllers for LCD PCs Which Tackle Multiple Supply Chores

Business Wire, August 29, 2001

Business Editors & High-Tech Writers

SAN JOSE, Calif.--(BUSINESS WIRE)--Aug. 29, 2001

Fairchild Semiconductor International (NYSE:FCS) announces the FAN5232 adjustable PWM Buck Controller for LCD PCs, which allows designers of PCs to replace silver box style, multiple-voltage power supplies with a low parts count solution running from a standard "brick" AC wall adapter or onboard battery pack.

The FAN5232 features both a 12V/adjustable output PWM Buck Controller for high current devices, such as hard disk drives, DVD or CD-ROM drives and regulated, always-on 3.3V and 5V regulator outputs capable of 50mA for system microcontroller standby power. The FAN5232 complements the Fairchild Semiconductor FAN5235, a 3.3V and 5V output PWM Controller that offers a complete, low-cost solution for portable PC power supply designs. Together the FAN5232 and FAN5235 present a complete chipset for powering LCD PCs and Internet appliances.

The synchronous PWM architecture utilized in the FAN5232 accepts input voltages ranging from 5.6V to 24V and is stable over a wide range of input and output conditions. This flexibility allows it to operate with a wide variety of AC adapters or multiple-cell battery packs, providing conversion efficiency of up to 96 percent in typical applications. And, although targeted for 12V peripheral supply duty up to 8A, the output of the flexible FAN5232 can be adjusted from 5V to 80 percent of the input voltage. Other features include Power Good indication, an independent shutdown for ACPI interfaces, output enable/soft start, under-voltage lockout (UVLO), output over-voltage protection, and precision adjustable current limiting that utilizes MOSFET Rds(on) current sensing.

The FAN5232 is available in a 14-pin TSSOP package. An evaluation board is available.

Price:            FAN5232:        U.S. $3.85 each (1,000 pcs.)
Availability:     Samples now and production quantities in 7-8 weeks
                  ARO.

For more information, contact Fairchild Semiconductor Customer Response Group at 888/522-5372; fax 972/910-8036, or visit Fairchild's Web site at www.fairchildsemi.com.

Note to editors: A PDF of the datasheet is available at www.fairchildsemi.com/pf/FA/FAN5232.html. Contact pr@welcomm.com for a product image.

About Fairchild Semiconductor

Fairchild Semiconductor International (NYSE:FCS) is a leading global supplier of high-performance products for multiple end markets. With a focus on developing leading-edge power and interface solutions to enable the electronics of today and tomorrow, Fairchild's components are used in computing, communications, consumer, industrial, automotive and aerospace applications. Fairchild's 11,000 employees design, manufacture and market power, analog & mixed signal, interface, logic, and optoelectronics products from its headquarters in South Portland, Maine, USA and numerous locations around the world. Please contact us on the Web at www.fairchildsemi.com.