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EZBuck™ 5A Simple Buck Regulator
February 2006

February 2006 www.aosmd.com Page 1 of 21

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

L1
C2
VOUT
AOZ1014
C1
LX
VIN
FB
PGND
COMP
EN
AGND
22uF
100uF
4.7uH
From uPC
RC
CC
R1
R2
D1
+3.3V Output
@5A
VIN


Figure 1. 3.3V/5A Buck Down Regulator