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AAT2504IZL-BAA-T1

更新时间： 2024-02-06 18:47:39

品牌	Logo	应用领域
思佳讯 - SKYWORKS		线性稳压器IC 电源电路
页数	文件大小	规格书
21页	1688K
描述
Adjustable Three-Channel Regulator

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AAT2504IZL-BAA-T1 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	,	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.84	Is Samacsys：	N
调节器类型：	ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR	Base Number Matches：	1

AAT2504IZL-BAA-T1 数据手册

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DATA SHEET

AAT2504

AdjustableThree-Channel Regulator

General Description

Features

The AAT2504 is a three-channel regulator consisting of a

step-down converter with an input voltage range of 2.7V

to 5.5V plus two low dropout (LDO) linear regulators.

The two LDOs have an input voltage range of 1.8V to

5.5V, making them well-suited for post regulating from

the step-down converter.

• 800mA Buck Converter

V_INRange: 2.7V to 5.5V

V_OUTRange: 0.9V to V_IN, Adjustable

High Efficiency: 95%

2MHz Switching Frequency

Synchronizable to External Clock

Internal Soft Start

▪

The step-down converter optimizes power efficiency

throughout the load range. Pulling the MODE/SYNC pin

high enables “PWM Only” operation, maintaining con-

stant frequency and low output ripple across the operat-

ing range. Alternatively, the converter may be synchro-

nized to an external clock to the MODE/ SYNC pin. The

step-down converter delivers up to 800mA of output cur-

rent. The switching frequency is 2MHz, minimizing the

size of external components.

• Two 300mA Linear Regulators

LDO Input Voltage Range: 1.62V to 5.5V

Low Dropout Voltage

High Output Accuracy: ±1.5%

▪

• Low Total Quiescent Current I_Q(80ꢀA)

• Independent Enable Pins

• Over-Temperature Protection

• QFN34-20 Package

• -40°C to +85°C Temperature Range

The two LDOs (LDOA/LDOB) have independent inputs

and are capable of delivering up to 300mA each. Ultra

low input voltage on the VLDOA and VLDOB pins (down

Applications

to 1.62V) allows for efficient post-buck regulation.

• Cellular Phones

Power-OK (POK) function provides an open drain output

signal when LDOA is within regulation. Both LDOs feature

low quiescent current and a low dropout voltage. The

output voltages for both LDOs are adjustable to as low as

0.6V. The linear regulators have independent Enable pins.

Typical no load quiescent current is a low 80μA when the

step-down converter and LDOs are enabled.

• Digital Cameras

• Handheld Instruments

• Microprocessor/DSP Core/IO Power

• PDAs and Handheld Computers

The AAT2504 is available in a Pb-free 3x4mm QFN34-20

package and is rated over the -40°C to +85°C tempera-

ture range.

Typical Application

V_OUT(Step-down)

AAT2504

V_IN

R₁

VIN

OUTA

R_1A

100kΩ

C_OUT

VLDOA

VLDOB

POK

FBA

POK

OUTB

FBB

R_1B

R_2B

R_2A

R₂

MODE/SYNC

ENA

2.2μF

PGND

AGND

ENB

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

202017B

• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 19, 2013

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