AOZ1051PI
EZBuck™ 3 A Synchronous Buck Regulator
General Description
The AOZ1051PI is a high efficiency, easy to use, 3 ...
AOZ1051PI
EZBuck™ 3 A Synchronous Buck
Regulator
General Description
The AOZ1051PI is a high efficiency, easy to use, 3 A synchronous buck
regulator. The AOZ1051PI works from 4.5 V to 18 V input voltage range, and provides up to 3 A of continuous output current with an output voltage adjustable down to 0.8 V. The AOZ1051PI comes in an exposed pad SO-8 package and is rated over a -40 °C to +85 °C operating ambient temperature range.
Features
z 4.5 V to 18 V operating input voltage range z Synchronous Buck: 70 mΩ internal high-side switch
and 40 mΩ internal low-side switch (at 12 V)
z Up to 95 % efficiency z External soft start z Output voltage adjustable to 0.8 V z 3 A continuous output current z 500 kHz PWM operation z Cycle-by-cycle current limit z Pre-bias start-up z Short-circuit protection z Thermal shutdown z Exposed pad SO-8 package
Applications
z Point of load DC/DC converters z LCD TV z Set top boxes z DVD and Blu-ray players/recorders z Cable modems
Typical Application
VIN
C1 10µF CSS
VIN EN
SS
L1 4.7µH
AOZ1051PI
LX
R1
VOUT
COMP
RC CC
FB AGND PGND
R2
C2, C3 22µF
Figure 1. 3.3 V 3 A Synchronous Buck
Regulator, Fs = 500 kHz
Rev. 1.0 June 2011
www.aosmd.com
Page 1 of 14
Free Datasheet http://www.datasheet4u.com/
AOZ1051PI
Ordering Information
Part Number
AOZ1051PI
Ambient Temperature Range
-40 °C to +85 °C
Package
EPAD SO-8
Environmental
Green Product
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant. Please visit www.a...