Datasheet > A7115E5R

A7115E5R

更新时间： 2024-10-31 01:15:03

品牌	Logo	应用领域
创瑞 - AITSEMI		DC-DC转换器
页数	文件大小	规格书
12页	384K
描述
DC-DC CONVERTER

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数据手册

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A7115E5R 数据手册

A7115

AiT Semiconductor Inc.

DC-DC CONVERTER

www.ait-ic.com

1.5MHZ, 1.5A SYNCHRONOUS STEP-DOWN CONVERTER

DESCRIPTION

FEATURES

The A7115 is

high efficiency monolithic



High Efficiency: Up to 96%

synchronous buck regulator using a constant

frequency, current mode architecture. Supply

current with no load is 300uA and drops to <1uA in

shutdown. The 2.5V to 6.5V input voltage range

makes the A7115 ideally suited for single Li-Ion,

two to four AA battery-powered applications. 100%

duty cycle provides low dropout operation,

extending battery life in portable systems. PWM

pulse skipping mode operation provides very low

output ripple voltage for noise sensitive

applications. Switching frequency is internally set at

1.5MHz, allowing the use of small surface mount

inductors and capacitors. The internal synchronous

switch increases efficiency and eliminates the need

for an external Schottky diode. Low output voltages

are easily supported with the 0.6V feedback

reference voltage.

1.5MHz Constant Switching Frequency

1.5A Output Current at V_IN=3V

Integrated Main switch and synchronous

rectifier. No Schottky Diode Required

2.5V to 6.5V Input Voltage Range

Output Voltage as Low as 0.6V

100% Duty Cycle in Dropout



Quiescent Current: 300μA(input < 4.2V)

Slope Compensated Current Mode Control for

Excellent Line and Load Transient Response

Short Circuit Protection



<1uA Shutdown Current

Soft start

Available in SOT-25 Package

APPLICATION



Cellular and Smart Phones

Microprocessors and DSP Core Supplies

Wireless and DSL Modems

PDAs

The A7115 is available in SOT-25 package.

ORDERING INFORMATION

MP3 / MP4 /PMP Player

Digital Still and Video Cameras

Portable Instruments

Package Type

SOT-25

Part Number

A7115E5R

TYPICAL APPLICATION

A7115E5VR

V: Halogen free Package

R: Tape & Reel

Note

AiT provides all RoHS products

Suffix “ V “ means Halogen free Package

REV1.0

- APR 2013 RELEASED, NOV 2014 UPDATED -

- 1 -

12 3 4 5 6 7...12

中文翻译

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