AOZ1915 Datasheet, PDF (1/14 Pages) Alpha & Omega Semiconductors – 1.5A General Purpose Boost Regulator

AOZ1915
1.5A General Purpose Boost Regulator
General Description
The AOZ1915 is a high-performance, current-mode,
constant frequency boost regulator with internal
MOSFET and internal Schottky diode. The 600kHz /
1.2MHz switching frequency allows the use of low-profile
inductor and capacitors. The current-mode control
ensures easy loop compensation and fast transient
response. The AOZ1915 works from a 2.7V to 5.5V input
voltage range and generates an output voltage as high
as 22V. Other features include input under-voltage
lockout, cycle-by-cycle current limit, thermal shutdown
and soft-start.
The AOZ1915 is available in a tiny 4mm x 3mm 12-pin
DFN package and is rated over a -40°C to +85°C
Features
● 2.7V to 5.5V input voltage range
● Adjustable output up to 22V
● Internal Schottky diode
● 600kHz/1.2MHz constant switching frequency
● Cycle-by-cycle current limit
● Thermal overload protection
● Programmable Soft-start
● Small 4mm x 3mm DFN 12L package
Applications
● LCD TV
● LCD Monitors
● Notebook Displays
● PCMCIA Cards
● Hand-Held Devices
● GPS power
● TV tuner
Typical Application Circuit
VIN
L1
4.7µH
VOUT
C1
10µF
C4
IN
FSEL
SS
LX OUT
AOZ1915
R2
C2
FB
10µF
R1
GND
OFF ON
EN
COMP
R3
C3
Figure 1. Typical Application Circuit
Rev. 1.1 July 2009
www.aosmd.com
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