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AOZ3046PI Datasheet

4A Synchronous Buck Regulator

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AOZ3046PI
EZBuck™ 4 A Synchronous Buck Regulator
General Description
The AOZ3046PI is a high efficiency, simple to use, 4 A
synchronous buck regulator. The AOZ3046PI operates
from a 7.5 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 AOZ3046PI comes in an exposed pad SO-8
package and is rated over a -40 °C to +85 °C operating
ambient temperature range.
Features
7.5 V to 18 V operating input voltage range
350 µA quiescent current typical applications
60 minternal high-side switch and 30 minternal
low-side switch (at 12 V)
PEM (pulse energy mode) enables 82 % plus
efficiency with IOUT = 10 mA (VIN = 12 V, VOUT = 5 V)
Up to 95 % efficiency
Internal 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
CCC
VIN VCC
VOUT
EN
AOZ3046
COMP
LX
FB
AGND
PGND
L1 5.8µH
R1
R2
VOUT
C2, C3
22µF
Rev. 2.0 October 2014
Figure 1. 5 V, 4 A Synchronous Buck Regulator, Fs = 500 KHz
www.aosmd.com
Page 1 of 14
ALPHA & OMEGA
ALPHA & OMEGA



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