AOZ1017 데이터 시트보기 (PDF) - Alpha and Omega Semiconductor

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AOZ1017

EZBuck™ 3A Simple Regulator

Alpha and Omega Semiconductor 

AOZ1017

EZBuck™ 3A Simple Regulator

General Description

The AOZ1017 is a high efficiency, simple to use, 3A buck

regulator. The AOZ1017 works from a 4.5V to 16V input

voltage range, and provides up to 3A of continuous

output current with an output voltage adjustable down to

0.8V.

The AOZ1017 comes in an SO-8 package and is rated

over a -40°C to +85°C ambient temperature range.

Features

● 4.5V to 16V operating input voltage range

● 50mΩ internal PFET switch for high efficiency:

up to 95%

● Internal soft start

● Output voltage adjustable to 0.8V

● 3A continuous output current

● Fixed 500kHz PWM operation

● Cycle-by-cycle current limit

● Short-circuit protection

● Output over voltage protection

● Thermal shutdown

● Small size SO-8 packages

Applications

● Point of load DC/DC conversion

● PCIe graphics cards

● Set top boxes

● DVD drives and HDD

● LCD panels

● Cable modems

● Telecom/Networking/Datacom equipment

Typical Application

VIN

C1

22µF Ceramic

VIN

From µPC

RC

CC

EN

U1

AOZ1017 LX

COMP

FB

C5

AGND GND

L1

4.7µH

D1

VOUT

3.3V

R1

C2, C3

22µF Ceramic

R2

Rev. 1.0 July 2007

Figure 1. 3.3V/3A Buck Regulator

www.aosmd.com

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