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LP5551 Datasheet Energy Management

Manufacturer: Texas Instruments

General Description

The LP5551 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 LP5551 contains two advanced, digitally controlled switching regulators for supplying variable voltage to processor core and memory.

Two regulators provide P- and N- well biasing for threshold scaling applications.

Overview

LP5551 www.ti.com SNVS417B – DECEMBER 2006 – REVISED APRIL 2013 LP5551 PowerWise™ Technology Compliant Energy Management Unit Check for Samples:.

Key Features

  • 1.
  • 23 2 300 mA Buck Regulators Operate 180 Degrees out of Phase for Reduced EMI.
  • 1 MHz PWM Switching Frequency.
  • 4 Programmable LDOs Ideal for I/O (Two of These), PLL, and Memory Retention Supply Generation.
  • Supports High-Efficiency PowerWise Technology Adaptive Voltage Scaling.
  • PWI Open Standard Interface for System Power Management.
  • Digitally Controlled Intelligent Voltage Scaling.
  • Auto or PWI Controlled PFM Mode Transition.