New Industry Products

Micrel Unveils MIC2206 PWM Synchronous Buck Regulator

July 13, 2005 by Jeff Shepard

Micrel Inc. (San Jose, CA) unveiled its new MIC2206, a 2 MHz pulse-width modulated (PWM) synchronous buck regulator with LOWQ™ mode and voltage scaling. The new solution is aimed at applications that require a scaled-down voltage supply in standby and sleep-mode, including cellular phones, personal digital assistants, digital cameras, GPS systems, and USB peripherals.

The MIC2206 is a PWM synchronous buck regulator featuring a low dropout standby mode and quiescent current of 18 µA with dual-voltage levels for standby and sleep modes. When in LOWQ™ mode, the output voltage drops to 1 V, reducing the current draw by the circuit being powered, reducing power in sleep mode and increasing standby time. While this feature saves battery life, it also helps avoiding spurious noise or high ripple. The MIC2206 can operate at 100-percent maximum duty cycle in low dropout conditions, and delivers efficient (>95 percent) power at 2 MHz frequency. The device is offered in a small 3 mm x 3 mm MLF™ -10lds package.

The MIC2206 IC is currently in volume production, and pricing starts at $1.98 for 1,000-unit quantities.