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AOZ3017 Datasheet

4A Synchronous Buck Regulator

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AOZ3017
EZBuck™ 4 A Synchronous Buck Regulator
General Description
The AOZ3017 is a high efficiency, simple to use, 4 A
synchronous buck regulator. The AOZ3017 operates
from a 4.5 V to 18 V input voltage range, and provides up
to 4 A of continuous output current with an output voltage
adjustable down to 0.8 V.
The AOZ3017 comes in an exposed pad SO-8 package
and is rated over a -40 °C to +85 °C operating ambient
temperature range.
Features
4.5 V to 18 V operating input voltage range
55 minternal high-side switch and 20 minternal
low-side switch (at 12 V)
Up to 95 % efficiency
External soft start
Output voltage adjustable to 0.8 V
4 A continuous output current
500 kHz PWM operation
Cycle-by-cycle current limit
Pre-bias start-up
Short-circuit protection
Thermal shutdown
Exposed pad SO-8 package
Applications
Point of load DC/DC converters
LCD TV
Set top boxes
DVD and Blu-ray players/recorders
Cable modems
Typical Application
VIN
C1
10µF
RC
CC
CSS
VIN SS
EN
AOZ3017 LX
COMP
FB
AGND
PGND
L1 4.7µH
R1
R2
VOUT
C2, C3
22µF
Rev. 0.4 August 2012
Figure 1. 3.3 V, 4 A Synchronous Buck Regulator, Fs = 500 kHz
www.aosmd.com
Page 1 of 14
ALPHA & OMEGA
ALPHA & OMEGA



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