Date: 02/11/2010

PoL power supply ICs from TI with 90 milliamps per square mm current density

Texas Instruments (TI) has unveiled two new DC power supply regulating chips for DSPs and FPGAs at point-of-load. The two new devices are TPS82671 and TPS84620.

"Point-of-load designs require greater power density, high efficiency and ease of use," said Sami Kiriaki, senior vice president of TI's Power Management business. "These two new power devices achieve new levels of integration and performance, and allow us to support a wide range of customers in portable, telecom, base station and industrial markets like never before."

TI says TPS82671 is the industry's smallest integrated plug-in power solution at 6.7 mm2, providing 90 milliamps per square millimeter. The device combines all external components in TI's new MicroSiP package with a 1-mm height -- easing design for 600-mA portable electronics, such as smartphones. The TPS82671 operates at quiescent current 17-uA and deliver power efficiency of 90 percent+ from an input voltage of 2.3 V to 4.8 V. A unique PWM frequency dithering feature reduces noise and improves performance in radio frequency-sensitive designs.

TI's new 6-A, 14.5-V TPS84620 is rated with a power density of greater than 800 watts per cubic inch with up to 95 percent efficiency and 30 percent better thermal dissipation than competitors, claims TI. The TPS84620 require only three external components for powering DSPs and FPGAs.

Package:
TPS82671: 8-pin, 2.3-mm x 2.9-mm x 1-mm MicroSiP BGA
TPS84620: 15-mm x 9-mm x 2.8-mm for QFN

Price:
TPS82671: US$1.30 for 1K pieces
TPS84620: US$7.00 for 1K pieces

Availability : Now