Four-Channel PMU Measures 3 mm x 3 mm

Assuming market position as the smallest power-management unit available, the four-channel AT73C239 measures 3 mm x 3 mm in a 16-pin QFN package. Three of its four channels are compatible with both RF and analog circuits, while the fourth channel employs a low-power LDO regulator for backup battery/capacitor recharging. In addition to a plethora of portable applications, the device's small form factor makes it a prime candidate for wireless chipset reference designs such as Bluetooth, WLAN, GPS, and Zigbee. The AT73C239 is available now either mounted on a reference-design board or as engineering samples. With the reference board, price is below $0.50 each in large quantities. ATMEL CORP., San Jose CA. (408) 441-0311.