Datasheet4U Logo Datasheet4U.com

LP5551 - Compliant Energy Management Unit

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.

Features

  • 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. Adaptive Voltage Scaling.
  • Supports high-efficiency PowerWise Technology.
  • PWI open standard interface for system power.
  • management Digitally controlled intelligent voltage scaling Auto or PWI controlled PFM mode transition Internal soft start/.

📥 Download Datasheet

Datasheet preview – LP5551

Datasheet Details

Part number LP5551
Manufacturer National Semiconductor
File Size 3.28 MB
Description Compliant Energy Management Unit
Datasheet download datasheet LP5551 Datasheet
Additional preview pages of the LP5551 datasheet.

📁 Similar Datasheet

  • LP5551 - Energy Management (Texas Instruments)
  • LP5550 - Energy Management (Texas Instruments)
  • LP5553 - PowerWise AVS Energy Management (National Semiconductor Corporation)
  • LP5553 - AVS Energy Management (Texas Instruments)
  • LP5520 - RGB Backlight LED Driver (Texas Instruments)
  • LP5521 - three-channel LED driver (Texas Instruments)
  • LP5522 - Programmable LED Driver (Texas Instruments)
  • LP5523 - 9-channel LED driver (Texas Instruments)
  • LP55231 - 9-channel LED driver (Texas Instruments)
  • LP5524 - Four-Channel LED Driver (Texas Instruments)
Other Datasheets by National Semiconductor
  • LP5550 - PowerWise Technology Compliant Energy Management
  • LP5552 - PWI 2.0 and PowerWise Technology Compliant Energy Management
  • LP5520 - RGB Backlight LED Driver
  • LP5521 - Programmable Three Channel LED Driver
  • LP5522 - Programmable LED Driver
  • LP5524 - Parallel LED Driver
  • LP5526 - Lighting Management
  • LP5527 - lighting management

Full PDF Text Transcription

Click to expand full text
LP5551 PowerWise™ Technology Compliant Energy Management Unit December 2006 LP5551 PowerWise™ Technology Compliant Energy Management Unit 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 www.DataSheet4U.com switching regulators for supplying variable voltage to processor core and memory. Two regulators provide P- and N- well biasing for threshold scaling applications. The device also integrates 4 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.
Published: |