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)
(75m
Ω
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
IN
C2
1µF
VOUT
OUT
AOZ1320
EN
GND
C1
0.1µF
OFF ON
Rev. 1.6 August 2008
www.aosmd.com
Page 1 of 18