Datasheet > AAT2113AIXS-1.2-T1

AAT2113AIXS-1.2-T1

更新时间： 2022-12-14 18:44:36

品牌	Logo	应用领域
ANALOGICTECH		转换器
页数	文件大小	规格书
19页	2997K
描述
3MHz, Fast Transient 1.5A Step-Down Converter in 2mm x 2mm Package

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PRODUCT DATASHEET

AAT2113A

SwitchReg

3MHz, FastTransient 1.5A Step-Down Converter in 2mm x 2mm Package

General Description

Features

• 5mm x 5mm Total Solution Size

The AAT2113A SwitchReg™ is a 1.5A step-down con-

verter with a typical input voltage of 3.3V and a fixed

output voltage of 1.2V or an adjustable output. The

3MHz switching frequency enables the use of small

external components. The ultra-small 2mm x 2mm foot-

print and high efficiency make the AAT2113A an ideal

choice for portable applications.

•

1.5A Maximum Output Current

Tiny 0.47ꢀH Chip Inductor

Excellent Transient Response

Input Voltage: 2.7V to 5.5V

• Ultra-small, Low Profile 8-pin 2mm x 2mm FTDFN

Package

•

Fixed or Adjustable Output Voltage Options:

The AAT2113A delivers 1.5A maximum output current

while consuming only 55μA no-load quiescent current.

Low R_DS(ON)integrated MOSFETs and 100% duty cycle

operation make the AAT2113A the ideal choice for high

output voltage, high current applications which require a

low dropout threshold.

Fixed Output Voltage: 1.2V

Adjustable Output Voltage: 1.0V to 1.8V

High Efficiency, Low Noise Architecture

3MHz Switching Frequency

▪

•

No External Compensation Required

55μA No Load Quiescent Current

100% Duty Cycle Low-Dropout Operation

Internal Soft Start

Over-Temperature and Current Limit Protection

<1μA Shutdown Current

The AAT2113A provides excellent transient response and

output accuracy across the operating range. No external

compensation is required.

The AAT2113A maintains high efficiency throughout the

load range. The unique low-noise architecture reduces

ripple and spectral noise. The AAT2113A automatically

optimizes efficiency during Light Load mode (LL) and

maintains constant frequency and low output ripple dur-

ing PWM mode.

• -40°C to 85°C Temperature Range

Applications

• Cellular Phones

• Digital Cameras

Over-temperature and short circuit protection safeguard

the AAT2113A and system components from damage.

• Hard Disk Drives

• MP3 Players

• PDAs and Handheld Computers

• Portable Media Players

• USB Devices

The AAT2113A is available in a Pb-free, ultra-small, low

profile, 8-pin 2mm x 2mm FTDFN package. The product

is rated over a temperature range of -40°C to 85°C.

• Wireless Network Cards

Typical Application

Load Transient Response

VIN

VOUT

(V_IN= 5V; V_OUT= 1.2V; I_OUT= 10% to 100%;

C_OUT= 10µF, 6.3V, 0603)

1.2V/1.5A

2.7V to 5.5V

1.3V

0.47µH

1.25V

1.2V

100mV

AAT2113A

1.15V

1.1V

10µF

4.7µF

1.0µF

6.3V

VCC

6.3V

0603

1.5A

6.3V

0603

AGND

PGND

0402

150mA

FTDFN22-8

Time (20µs/div)

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

2113A.2009.06.1.1

12 3 4 5 6 7...19

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