AOZ1014 查看數據表（PDF） - Alpha and Omega Semiconductor

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AOZ1014

5A Simple Buck Regulator

Alpha and Omega Semiconductor 

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EZBuck™ 5A Simple Buck Regulator

February 2006

General Description

The AOZ1014 is a high efficiency, simple to use, 5A buck

regulator. The AOZ1014 works from a 4.5V to 16V input

voltage range, and provides up to 5A of continuous output

current with an output voltage adjustable down to 0.8V.

The AOZ1014 comes in SO-8 and DFN-8 packages and is

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

Features

• 4.5V to 16V operating input voltage

range

• 32 mΩ internal PFET switch for high

efficiency: up to 95%

• Internal soft start

• Output voltage adjustable to 0.8V

• 5A continuous output current

• Fixed 500kHz PWM operation

• Cycle-by-cycle current limit

• Short-circuit protection

• Thermal shutdown

• Small size SO-8 and DFN-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

22uF

C1

From uPC

RC

CC

VIN

EN

AOZ1014 LX

COMP

AGND

FB

PGND

L1 4.7uH

R1

D1

R2

VOUT +3.3V Output

@5A

C2

100uF

February 2006

Figure 1. 3.3V/5A Buck Down Regulator

www.aosmd.com

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