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AAT2603INJ-3-T1

更新时间： 2024-01-01 23:46:05

品牌	Logo	应用领域
ANALOGICTECH		电源电路电源管理电路便携式
页数	文件大小	规格书
26页	4100K
描述
Total Power Solution for Portable Applications

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AAT2603INJ-3-T1 技术参数

生命周期：	Active	包装说明：	,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.33
Is Samacsys：	N	模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT
Base Number Matches：	1

AAT2603INJ-3-T1 数据手册

PRODUCT DATASHEET

AAT2603

Total Power Solution for Portable Applications

General Description

Features

•

The AAT2603 is a highly integrated power management

solution for handheld mobile systems. It provides six

regulated voltages from a single-cell Lithium-ion/poly-

mer battery or a 5V supply.

V_INRange: 2.7V to 5.5V

Two Step-Down Regulators

DC-DC1(Buck1): 1.2A, Low Dropout Voltage

▪

•

Externally Adjustable: V_FBB1= 0.6V

V_OUTRange: 0.6V to V_INB1

Fixed: V_OUT= 3.3V

Factory Programmable to any Two Voltage

Levels from 0.6V to 4.0V

• DC-DC2(Buck2): 0.6A, Low Dropout Voltage

▪

The six outputs are produced by six regulators; two

switching step-down regulators and four low-dropout

(LDO) regulators. Each voltage regulator has its own

independent enable pin.

•

▪

•

The high efficiency step-down regulators are fully inte-

grated and switch at a high 1.5 MHz fixed frequency.

They automatically transition to variable frequency

operation at light loads for improved efficiency. DC-DC1

(Buck1) is designed for high output current and low

dropout voltage (200mV at 1.2A). DC-DC2 (Buck2) is a

600mA regulator with a two step dynamic output voltage

capability. One option allows the output voltage of

DC-DC2 (Buck2) to be set to either 1.0V or 1.3V with the

SELB2 logic pin.

Externally Adjustable: V_FBB2= 0.6V

V_OUTRange: 0.6V to V_INB2

Fixed: V_OUT= 1.0V[SELB2=’0’]/1.3V[SELB2=’1’]

▪

•

Factory Programmable to any Two Voltage

Levels from 0.6V to 4.0V

▪

Fixed 1.5MHz Switching Frequency

Internally Compensated Current Mode Control

High Efficiency over the Entire Load Range

Four LDO Regulators

•

▪

LDO1: 400mA LDO

LDO2: 400mA LDO

LDO3: 200mA, Low Noise LDO

LDO4: 200mA, Low Noise LDO

Fast Turn-On and Turn-Off time

LDO regulators LDO1 and LDO2 can supply up to 400mA

of load current with output voltages adjustable down to

1.5V. LDO regulators LDO3 and LDO4 can supply up to

200mA of current and provide good noise and power sup-

ply rejection. LDO3 and LDO4 have output voltages exter-

nally adjustable down to 1.2V.

•

Short Circuit and Over-Current Protection

Over-Temperature Protection

Temperature Range: -40°C to +85°C

TQFN44-28 Package

The AAT2603 is available in a Pb-free thermally enhanced

28-pin TQFN44 package and is rated for operation over

the -40°C to +85°C temperature range.

Applications

•

Handheld GPS

Handheld Instruments

PDAs and Handheld Computers

Portable Media Players

Smart Phones

w w w . a n a l o g i c t e c h . c o m

2603.2008.06.1.0

12 3 4 5 6 7...26

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