AOZ1615 Datasheet, PDF (1/14 Pages) Alpha & Omega Semiconductors – 1.5A/3MHz Buck Regulator

AOZ1615
1.5A/3MHz Buck Regulator
General Description
The AOZ1615 is a high-performance, easy-to-use
buck regulator. Its 3MHz switching frequency, low
quiescent current and small solution size make it an
ideal choice for portable applications.
The AOZ1615 has a patented light load mode
architecture allowing up to 85% efficiency at 1mA
load currents, enabling longer standby times in
battery operated systems.
The AOZ1615 has and input voltage range of 2.5V to
5.5V and provides up to 1.5A of output current with
an output voltage adjustable down to 0.6V.
The AOZ1615 is available in a tiny 2mm X 3mm
8-pin DFN package and is rated over a -40°C to
+85°C ambient temperature range.
Features
• 2.5V to 5.5V input voltage range
• 0.1µA shutdown current
• Automatic PFM/PWM mode switching
• Output voltage adjustable down to 0.6V
• Fixed output voltages available
• ±2% initial accuracy
• Up to 1.5A continuous output current
• 3MHz 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 2mm X 3mm 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
L1
IN
LX
1.0µH
C1
10µF
AOZ1615DI
R1
PGND
FB
R2
EN
AGND
VOUT
1.5A
C2
Analog Ground
Power Ground
Rev. 1.0 November 2011
www.aosmd.com
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