Datasheet > LP5550

LP5550

更新时间： 2024-11-22 02:58:43

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LP5550 PowerWiseâ¢ Technology Compliant Energy Management Unit

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LP5550 数据手册

LP5550

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SNVS378G –OCTOBER 2005–REVISED APRIL 2013

LP5550 PowerWise™ Technology Compliant Energy Management Unit

Check for Samples: LP5550

FEATURES

DESCRIPTION

The LP5550 is

Management System

consumption of stand-alone mobile phone processors

such as base-band or applications processors.

PWI 1.0 compliant Energy

for reducing power

•

Supports High-Efficiency PowerWise

Technology Adaptive Voltage Scaling

•

PWI Open Standard Interface for System

Power Management

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.

•

Digitally Controlled Intelligent Voltage Scaling

1 MHz PWM Switching Frequency

Auto or PWI Controlled PFM Mode Transition

Internal Soft Start/Startup Sequencing

3 Programmable LDOs for I/O, PLL, and

Memory Retention Supply Generation

The device is controlled via the PWI open-standard

interface. The LP5550 operates cooperatively with

PowerWise technology compatible processors to

optimize supply voltages adaptively over process and

temperature variations or dynamically using

frequency/voltage pre-characterized look-up tables.

•

Power OK Output

APPLICATIONS

•

GSM/GPRS/EDGE & UMTS Cellular Handsets

Hand-Held Radios

PDAs

Battery Powered Devices

Portable Instruments

System Diagram

VBAT

LP5550

SoC

LDO3

VO3

Embedded Memory

Processor Core

AVS/DVS domain

Hardware Performance

AVS

Monitor (HPM)

SCLK

ENABLE

RESETN

Slave Power

Controller

(SPC)

SPWI

Advanced Power

Controller (APC)

PWROK

PWI

VO1

VO2

LDO1

PLL

I/O Bus

LDO2

Figure 1. System Diagram

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...28

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与LP5550相关器件

型号	品牌	获取价格	描述	数据表
LP5550SQ	NSC	获取价格	PowerWise Technology Compliant Energy Management Unit
LP5550SQ/NOPB	TI	获取价格	PowerWise Technology Compliant Energy Power Management IC (PMIC) 16-WQFN -40 to 125
LP5550SQX	NSC	获取价格	PowerWise Technology Compliant Energy Management Unit
LP5550SQX/NOPB	TI	获取价格	PowerWise Technology Compliant Energy Power Management IC (PMIC) 16-WQFN -40 to 125
LP5551	NSC	获取价格	PowerWise⑩ Technology Compliant Energy Manage
LP5551SQ	NSC	获取价格	PowerWise⑩ Technology Compliant Energy Manage
LP5551SQX	NSC	获取价格	PowerWise⑩ Technology Compliant Energy Manage
LP5552	NSC	获取价格	PWI 2.0 and PowerWise⑩ Technology Compliant E
LP5552_08	NSC	获取价格	PWI 2.0 and PowerWise Technology Compliant Energy Management Unit
LP5552TL/NOPB	NSC	获取价格	PWI 2.0 and PowerWise Technology Compliant Energy Management Unit

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