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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
VIN
From uPC
EN
L1 4.7uH
AOZ1014
COMP
R
C
LX
R1
VOUT
+3.3V Output
@5A
FB
AGND
PGND
D1
R2
C2
100uF
C
C
Figure 1. 3.3V/5A Buck Down Regulator
February 2006
www.aosmd.com
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