AOZ1046
EZBuck™ 2A Simple Buck Regulator
General Description
The AOZ1046 is a high efficiency, simple to use, 2A buck
regulator. The AOZ1046 works from a 4.75V to 16V input
voltage range, and provides up to 2A of continuous
output current with an output voltage adjustable down
to 0.8V.
The AOZ1046 comes in an SO-8 package and is rated
over a -40°C to +85°C ambient temperature range.
Features
● 4.75V to 16V operating input voltage range
● 130mΩ internal PFET switch for high efficiency:
up to 95%
● Internal Schottky diode
● Internal soft start
● Output voltage adjustable to 0.8V
● 2A continuous output current
● Fixed 500kHz PWM operation
● Cycle-by-cycle current limit
● Short-circuit protection
● Under voltage lockout
● Output over voltage protection
● Thermal shutdown
● Small size SO-8 package
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
From μPC
20kΩ
VIN
EN
AOZ1046
COMP
LX
FB
C5
1nF
C2
AGND PGND
L1
4.7μH
VOUT
R2
C4, C6
22μF Ceramic
R3
Rev. 1.0 December 2008
Figure 1. 3.3V/2A Buck Regulator
www.aosmd.com
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