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LP3927

Part Number	LP3927
Manufacturer	National Semiconductor
Description	Cellular/PCS System Power Management
Published	Mar 22, 2005
Detailed Description	LP3927 Cellular/PCS System Power Management IC August 2002 LP3927 Cellular/PCS System Power Management IC General Desc...
Datasheet	LP3927 PDF File

Overview

LP3927 Cellular/PCS System Power Management IC August 2002 LP3927 Cellular/PCS System Power Management IC General Description The LP3927 system power management IC is designed for cellular/PCS handsets as well as other portable systems that require intelligent power management.
Each device contains five low-dropout linear regulators (LDO’s), a reset timer, a power-up control logic, a general-purpose open drain output that can be used to light LEDs, and a CMOS rail-to-rail input/output operational amplifier.
Each linear regulator features an extremely low dropout voltage of 100 mV (typ) at maximum output current.
LDO1 and LDO2 are powered on and off by either the KYBD or the VEXT pin.
LDO3,...

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