AOZ1320 Datasheet, PDF (1/18 Pages) Alpha & Omega Semiconductors – Load Switch with Controlled Slew Rate

AOZ1320
Load Switch with Controlled Slew Rate
General Description
The AOZ1320 is a P-channel high-side load switch with
controlled slew rate. Three slew rate options are
available. The AOZ1320-01 and AOZ1320-04 have a
slew rate of 1ms, and the AOZ1320-07 has a slew rate of
4.5ms. The AOZ1320-02 and AOZ1320-05 feature fast
Slew Rate (less than 500ns). The slew rate of
AOZ1320-03 and AOZ1320-06 is 100µs. The
AOZ1320-03, AOZ1320-04, AOZ1320-05, and
AOZ1320-07 provide an output discharge circuit to
quickly discharge the output when the switch is disabled.
The P-channel MOSFET has typical on resistance of
75mΩ. The very low R_DS(ON) significantly reduces the
power path dissipation. The input voltage range of
AOZ1320 is from 1.8V to 5.5V. The control input is
compatible with both TTL and CMOS logic. Ultra low
quiescent current makes this product suitable for any
portable applications.
The AOZ1320 is available in a 6-pin SOT23 or
8-pin 2mm X 2mm DFN package and is rated over
the -40°C to +85°C ambient temperature range.
Features
● 1.8V to 5.5V Input Voltage Range
● Input Under-Voltage Lockout
● Low R_DS(ON) (75mΩ Typical at 5V)
● Controlled Turn-On Slew Rate
– 1ms (AOZ1320-01, -04)
– 0.5µs (AOZ1320-02, -05)
– 100µs (AOZ1320-03, -06)
– 4.5ms (AOZ1320-07)
● Output Discharge Function (-03, -04, -05)
● Low Quiescent Current (1.2µA typical)
● Low Shutdown Current (<1µA)
● 4.5kV ESD Rating
● Tiny SOT23 or 2mm x 2mm DFN Package
Applications
● Cellular Phones
● MP3 Players
● Personal Media Players
● Notebook Computers
● Digital Still Cameras
● Hot-Swap Applications
Typical Application
VIN
C2
1µF
OFF ON
IN
OUT
AOZ1320
EN
GND
VOUT
C1
0.1µF
Rev. 1.6 August 2008
www.aosmd.com
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