Datasheet > AAT2114A

AAT2114A

更新时间： 2022-08-07 22:51:06

品牌	Logo	应用领域
思佳讯 - SKYWORKS		稳压器
页数	文件大小	规格书
16页	2924K
描述
2.5A Low-Noise, Fast Transient 3MHz Step-Down Regulator

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AAT2114A 数据手册

DATA SHEET

AAT2114A

2.5A Low-Noise, FastTransient 3MHz Step-Down Regulator

General Description

Features

•

The AAT2114A SwitchReg™ step-down converter deliv-

ers up to 2.5A to support the adjustable 1.0V to V_IN

output from the 2.7V to 5.5V input source. The 3MHz

switching frequency allows a high-bandwidth design that

minimizes the external LC component requirements.

2.5A Maximum Output Current

3MHz Switching Frequency

Stable With 20μF Output Capacitor

▪

•

2.7V to 5.5V Input Voltage Range

Adjustable 1.0V to V_INOutput Voltage

Up to 95% Efficiency

The AAT2114A high-frequency converter consumes only

70μA no-load quiescent current. The internally compen-

sated, high-frequency, current-mode control scheme pro-

vides excellent transient response, minimal output ripple,

and reduced spectral noise. Additionally, the AAT2114A

provides tight output accuracy across the entire load and

input voltage operating ranges.

Excellent Current-Mode Transient Response

Low-Noise Light-Load Architecture

70μA No Load Quiescent Current

No External Compensation Required

Internal Soft Start

Over-Temperature and Current-Limit Protection

<1μA Shutdown Current

-40°C to +85°C Temperature Range

16-Pin, 3mm x 3mm QFN Package

The regulator maintains high efficiency by integrating

the high-side and low-side MOSFETs and designing the

gate drivers to minimize dead-time switching losses. The

regulator also reduces the switching frequency under

light load conditions, minimizing power loss over the

entire load range.

Applications

• Cellular Phones

• Digital Cameras

• MP3/Portable Media Players

• Wireless Cards

For system fault protection, the AAT2114A includes over-

temperature and short-circuit current-limit protection to

safeguard the AAT2114A and system components from

overload conditions.

The compact 3mm x 3mm QFN package footprint, mini-

mal LC requirements, and high efficiency make the

AAT2114A an ideal choice for low-power portable applica-

tions operating from a Li-ion/polymer battery.

Typical Application

V_OUT

Load Transient Response

L1 0.47μH

(250mA to 2.5A; V_IN= 3.6V; V_OUT= 1.2V;

C_OUT= 2x10µF; C_FF= 100pF)

V_IN

1.2V, 2.5A

13,14,15

2.7V-5.5V

VCC

1.4

1.3

1.2

1.1

C_OUT

10,11,12

N/C

R_FBH

59kΩ

2x10μF

190mV

C_IN

10μF

AAT2114A

1, 2, 3

0603

C_FF

100pF

PGND

0603

R_FBL

59kΩ

N/C

OFF

SGND

GND

N/C

Time (50µs/div)

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

202004C

• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 18, 2013

12 3 4 5 6 7...16

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与AAT2114A相关器件

型号	品牌	描述	获取价格	数据表
AAT2114AIVN-0.6-T1	SKYWORKS	2.5A Low-Noise, Fast Transient 3MHz Step-Down Regulator	获取价格
AAT2120	ANALOGICTECH	500mA Low Noise Step-Down Converter	获取价格
AAT2120_08	ANALOGICTECH	500mA Low Noise Step-Down Converter	获取价格
AAT2120IES-0.6-T1	ANALOGICTECH	500mA Low Noise Step-Down Converter	获取价格
AAT2138	SKYWORKS	High Current Step-Down Converter with High-Precision Programmable Current Limited Load Swi	获取价格
AAT2138IWO-0.6-T1	SKYWORKS	Switching Regulator, Current-mode, 2800kHz Switching Freq-Max, PDSO14	获取价格

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