AOZ1022DI-01 Datasheet, PDF (1/15 Pages) Alpha & Omega Semiconductors – EZBuck™ 3A Synchronous Buck Regulator

AOZ1022DI-01
EZBuck™ 3A Synchronous Buck Regulator
General Description
The AOZ1022DI-01 is a synchronous high efficiency,
simple to use, 3A buck regulator. The AOZ1022DI-01
works from a 4.5V to 16V input voltage range, and
provides up to 3A of continuous output current with an
output voltage adjustable down to 0.8V.
The AOZ1022DI-01 comes in a DFN 5x4 package and is
rated over a -40°C to +85°C ambient temperature range.
Features
 4.5V to 16V operating input voltage range
 Synchronous rectification: 100mΩ internal high-side
switch and 20mΩ Internal low-side switch
 High efficiency: up to 95%
 Internal soft start
 Active high power good state
 Output voltage adjustable to 0.8V
 3A continuous output current
 Fixed 500kHz PWM operation
 Cycle-by-cycle current limit
 Pre-bias start-up
 Short-circuit protection
 Thermal shutdown
 Small size DFN 5x4
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
R_C
C_C
5V DC
R3
VIN
PGOOD
EN
AOZ1022DI-01 ^LX
COMP
L1 4.7µH
R1
FB
AGND
PGND
R2
VOUT
C2, C3
22µF Ceramic
Rev. 3.1 November 2012
Figure 1. 3.3V/3A Synchronous Buck Regulator
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