Datasheet > AME5268

AME5268

更新时间： 2024-02-26 04:46:09

品牌	Logo	应用领域
安茂微 - AME		转换器
页数	文件大小	规格书
20页	354K
描述
3A, 28V, 340KHz Synchronous Rectified Step-Down Converter

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AME5268 数据手册

AME

3A, 28V, 340KHz Synchronous

Rectified Step-Down Converter

AME5268

n General Description

n Features

The AME5268 is a fixed frequency monolithic synchro-

nous buck regulator that accepts input voltage from 4.75V

to 28V. Two NMOS switches with low on-resistance are

integrated on the die. Current mode topology is used for

fast transient response and good loop stability.

l 3A Output Current

l Wide 4.75V to 28V Operating Input Range

l Integrated Power MOSFET Switches

l Output Adjustable from 0.925V to 25V

l Up to 95% Efficiency

Shutdown mode reduces the input supply current to less

than 1mA. An adjustable soft-start prevents inrush current

at turn-on.

l Programmable Soft Start

l Stable with Low ESR Ceramic Output

Capacitors

This device is available in SOP-8/PP package with ex-

posed pad for low thermal resistance.

l Cycle-by Cycle Over Current Protection

l Fixed 340KHz Frequency

l Input Under Voltage Lockout

l System Protected by Over-current Limiting,

Over-voltage Protection and Thermal Shut-

down

n Applications

l Distributed Power System

l Networking System

l FPGA, DSP, ASIC Power Supplies

l Notebook Computers

l Thermally Enhanced SOP-8/PP Package

l All AME’ s Lead Free Products Meet RoHS

Standards

C n Typical Application

10nF

12V

i e

100KW

10mF/35V

V_OUT

15mH/3.4A

AME5268

COMP

44.2KW1%

GND

22mF/10V

0.1mF

3.3nF

10KW1%

6.98KW1%

Rev.B.01

12 3 4 5 6 7...20

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