AOZ1606 Datasheet, PDF (1/14 Pages) Alpha & Omega Semiconductors – 500 mA / 3 MHz EZBuck Regulator

AOZ1606
500 mA / 3 MHz EZBuck Regulator
General Description
The AOZ1606 is a high-performance, easy-to-use Buck
regulator. The 3 MHz switching frequency, low quiescent
current and small package size make it an ideal choice
for portable applications. The AOZ1606 is optimized for
operation with a tiny 1.0 H inductor and a small 10 F
output capacitor to achieve a small solution size with high
performance.
The AOZ1606 operates from a 2.5 V to 5.5 V input
voltage range and provides up to 500 mA of output
current with an output voltage adjustable down to 0.6 V.
In shutdown mode, the current consumption is reduced
to less than 0.1 A.
The AOZ1606 is available in a tiny 2 mm x 2 mm 8-pin
DFN package and is rated over a -40 °C to +85 °C
ambient temperature range.
Features
 2.5 V to 5.5 V input voltage range
 0.05 A shutdown current
 Output voltage adjustable to 0.6 V
 Fixed output voltages available
 ± 1.5% initial accuracy
 Up to 500 mA continuous output current
 3 MHz constant frequency operation
 Low drop-out operation: 100% duty cycle
 Cycle-by-cycle current-limit
 Thermal overload protection
 Excellent load transient response
 Internal soft-start
 Tiny 2 mm x 2 mm DFN-8 package
Applications
 Smart phones
 Personal media players
 MP3 players
 Digital still cameras
 Wireless modems and LANs
 Portable USB devices
Typical Application
VIN = 2.5V to 5.5V
Off On
AOZ1606DI
IN
LX
C1
10µF
PGND
FB
L1
1.0µH
EN
AGND
VOUT = 500mA
R1
C2
10µF
R2
Rev. 1.1 June 2012
www.aosmd.com
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