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MAX8621Y

Maxim Integrated Products
Part Number MAX8621Y
Manufacturer Maxim Integrated Products
Description Dual Step-Down DC-DC Power-Management ICs
Published Nov 25, 2006
Detailed 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 P...
Datasheet PDF File MAX8621Y PDF File

MAX8621Y
MAX8621Y

Overview
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 Description The MAX8621Y/MAX8621Z power-management integrated circuits (PMICs) are designed for a variety of portable devices including cellular handsets.
These PMICs include two high-efficiency step-down DC-DC converters, four low-dropout linear regulators (LDOs) with pin-programmable capability, one open-drain driver, a 60ms (typ) reset timer, and power-on/off control logic.
These devices offer high efficiency with a no-load supply current of 160µA, and their small thin QFN 4mm x 4mm package makes them ideal for portable devices.
The step-down DC-DC converters utilize a proprietary 4MHz hysteretic-PWM control scheme that allows for ultra-small external components.
Internal synchronous rectification improves efficiency and eliminates the external Schottky diode that is required in conventional step-down converters.
The output voltage is adjust...


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