Description
www.DataSheet4U.com 19-3539; Rev 1; 8/05 KIT ATION EVALU E L B A AVAIL Dual Step-Down DC-DC Power-Management ICs for Portable Devices General Descri.
The MAX8621Y/MAX8621Z power-management integrated circuits (PMICs) are designed for a variety of portable devices including cellular handsets.
Features
* Two 500mA Step-Down Converters Up to 4MHz Switching Frequency Adjustable Output from 0.6V to 3.3V
* Four Low-Noise LDOs with Pin-Programmable Output Voltages
* One Open-Drain Driver
* 60ms (typ) Reset Timer
* Power-On/Off Control Logic and Sequencing
Applications
* Cellular Handsets Smart Phones, PDAs Digital Cameras MP3 Players Wireless LAN
Pin Configuration appears at end of data sheet. IN3
PGND1 LX2 BUCK2 1.8V, 500mA
PWRON FB2 SEL1
SEL2
PGND2 OUT1 OUT1 2.6V, 300mA RESET OUT2 2.6V, 300mA OUT3 1.8V, 150mA OUT4 3V, 150mA INPUT GND DR
EN2 EN3
RESET OUT2