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LP5550 PowerWise™ Technology Compliant Energy Management Unit
October 2005
LP5550 PowerWise™ Technology Compliant Energy Management Unit
General Description
The LP5550 is a PWI 1.
0 compliant Energy Management System for reducing power consumption of stand-alone mobile phone processors such as base-band or applications processors.
The LP5550 contains an advanced, digitally controlled switching regulator for supplying variable
voltage to processor core and memory.
The device also incorporates 3 programmable LDO-regulators for powering I/O, PLLs and maintaining memory retention in shutdown-mode.
The device is controlled via the PWI open-standard interface.
The LP5550 oper...