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AOZ1012D Datasheet, PDF (1/17 Pages) Alpha & Omega Semiconductors – EZBuck™ 3A Simple Buck Regulator | |||
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EZBuck⢠3A Simple Buck Regulator
April 2006
General Description
The AOZ1012D is a high efficiency, simple to use, 3A buck
regulator. The AOZ1012D 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 AOZ1012D comes in 4X5 DFN-8 packages and is rated
over a -40°C to +85°C ambient temperature range.
Features
⢠4.5V to 16V operating input voltage
range
⢠50 m ⦠internal PFET switch for high
efficiency: up to 95%
⢠Internal Schottky Diode
⢠Internal soft start
⢠Output voltage adjustable to 0.8V
⢠3A continuous output current
⢠Fixed 500kHz PWM operation
⢠Cycle-by-cycle current limit
⢠Short-circuit protection
⢠Thermal shutdown
⢠Small size DFN-8 packages
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
From uPC
RC
CC
C1
22uF
VIN
EN
AOZ1012D LX
COMP
FB
GND
L1 3.3uH
R1
R2
VOUT
+3.3V Output
@3A
C2
47uF
April 2006
Figure 1. 3.3V/3A Buck Down Regulator
www.aosmd.com
Page 1 of 17
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