aoz1915 Alpha & Omega Semiconductor, aoz1915 Datasheet
aoz1915
Manufacturer Part Number
aoz1915
Description
1.5a General Purpose Boost Regulator
Manufacturer
Alpha & Omega Semiconductor
Datasheet
1.AOZ1915.pdf
(14 pages)
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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
Typical Application Circuit
Rev. 1.1 July 2009
VIN
OFF ON
C1
10µF
C4
Figure 1. Typical Application Circuit
FSEL
SS
IN
EN
www.aosmd.com
L1
4.7µH
AOZ1915
Features
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Applications
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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
LCD TV
LCD Monitors
Notebook Displays
PCMCIA Cards
Hand-Held Devices
GPS power
TV tuner
LX OUT
1.5A General Purpose Boost Regulator
COMP
GND
FB
R1
R2
AOZ1915
R3
C2
10µF
C3
VOUT
Page 1 of 14
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