AOZ1094AI Datasheet, PDF (1/19 Pages) Alpha & Omega Semiconductors – EZBuck™ 5A Simple Buck Regulator

AOZ1094
EZBuck™ 5A Simple Buck Regulator
General Description
The AOZ1094 is a high efficiency, simple to use, 5A buck
regulator. The AOZ1094 works from a 4.5V to 16V input
voltage range, and provides up to 5A of continuous
output current with an output voltage adjustable down
to 0.8V.
The AOZ1094 comes in SO-8 and 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
● 28mΩ internal PFET switch for high efficiency:
up to 95%
● Internal soft start
● Output voltage adjustable to 0.8V
● Built-in Overvoltage Protection (OVP)
– 18% OVP threshold
● 5A continuous output current
● Fixed 500kHz PWM operation
● Cycle-by-cycle current limit
● Short-circuit protection
● Thermal shutdown
● Small size SO-8 and 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
C1
22μF
VIN
Enable
RC
CC
EN
U1
AOZ1094 ^LX
COMP
C5
1000pF
AGND
FB
GND
L1 3.3μH
Rs
20Ω
D1
Cs
1nF
VOUT
3.3V
R1
C2
22μF
C3
22μF
R2
Rev. 1.3 October 2010
Figure 1. 3.3V/5A Buck Down Regulator
www.aosmd.com
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