ADP3522ACP-1.8

更新时间： 2024-01-18 05:06:45

品牌	Logo	应用领域
亚德诺 - ADI		GSM
页数	文件大小	规格书
20页	404K
描述
GSM Power Management System

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ADP3522ACP-1.8 数据手册

GSM Power Management System

ADP3522

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Handles all GSM Baseband Power Management

6 LDOs Optimized for Specific GSM Subsystems

Li-Ion Battery Charge Function

VBAT VBAT2 VRTCIN

Optimized for the AD20msp430 Baseband Chipset

Reduced Package Size: 5 mm ꢀ 5 mm LFCSP-32

SIM

LDO

POWER-UP

VSIM

APPLICATIONS

GSM/GPRS Handsets

SEQUENCING

AND

PROTECTION

LOGIC

SIMVSEL

PWRONKEY

ROWX

DIGITAL

CORE LDO

VCORE

GENERAL DESCRIPTION

PWRONIN

ANALOG

LDO

The ADP3522 is a multifunction power system chip optimized

for GSM/GPRS handsets, especially those based on the Analog

Devices AD20msp430 system solution with 1.8 V digital

baseband processors, such as the AD6525, AD6526, and

AD6528. It contains six LDOs, one to power each of the critical

GSM subblocks. Sophisticated controls are available for power-

up during battery charging, keypad interface, and RTC alarm.

The charge circuit maintains low current charging during the

initial charge phase and provides an end of charge (EOC) signal

when a Li-Ion battery is being charged. This product also meets

the market trend of reduced size with a new LFCSP package.

Its footprint is only 5 mm ꢀ 5 mm and yet offers excellent ther-

mal performance due to the exposed die attached paddle.

VAN

TCXOEN

SIMEN

TCXO

LDO

VTCXO

VMEM

MEMORY

LDO

RESCAP

RTC

LDO

VRTC

REF

BUFFER

REFOUT

RESET

CHRDET

The ADP3522 is specified over the temperature range of

–20°C to +85°C.

EOC

BATTERY

VOLTAGE

DIVIDER

BATTERY

CHARGE

CONTROLLER

MVBAT

DGND

CHGEN

BATSNS

ISENSE

GATEIN

CHRIN

AGND

ADP3522

GATEDR

REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat

may result from its use. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective companies.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

www.analog.com

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