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LP5552 - PWI 2.0 and PowerWise Technology Compliant Energy Management

Description

The LP5552 is a PWI 2.0 compliant Energy Management System for reducing power consumption of stand-alone mobile phone processors such as base-band or applications processors.

Features

  • n Two 800 mA buck regulators operate 180 degrees out of phase for reduced EMI n 3.6 MHz PWM switching frequency n Five programmable LDOs ideal for I/O , PLL, and memory retention supply generation. n Supports high-efficiency PowerWise Technology Adaptive Voltage Scaling n PWI 2.0 open standard interface for system power management n Digitally controlled intelligent voltage scaling n Auto or PWI controlled PFM mode transition n Internal soft start/startup sequencing. n Power OK output. Applicati.

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Datasheet Details

Part number LP5552
Manufacturer National Semiconductor
File Size 561.66 KB
Description PWI 2.0 and PowerWise Technology Compliant Energy Management
Datasheet download datasheet LP5552 Datasheet
Additional preview pages of the LP5552 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com LP5552 PWI 2.0 and PowerWise™ Technology Compliant Energy Management Unit ADVANCE INFORMATION September 2006 LP5552 PWI 2.0 and PowerWise™ Technology Compliant Energy Management Unit General Description The LP5552 is a PWI 2.0 compliant Energy Management System for reducing power consumption of stand-alone mobile phone processors such as base-band or applications processors. The LP5552 contains two advanced, digitally controlled switching regulators for supplying variable voltage to processor core and memory. The device also incorporates 5 programmable LDO regulators for powering I/O, peripheral logic blocks, maintaining memory retention (dual-domains) in shutdown mode, and auxillary functions. The device is controlled via the PWI 2.0 open-standard interface.
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