AOZ1321DI
Load Switch with Controlled Slew Rate
General Description
The AOZ1321DI is a P-channel high-side load switch
with controlled slew rate. Three slew rate options are
available. The AOZ1321DI-01L and AOZ1321DI-04L
have slew rates of 800us. The AOZ1321DI-02L and
AOZ1321DI -05L feature fast Slew Rate (less than 1µs).
The slew rate of AOZ1321DI-03L and AOZ1321DI-06L is
100µs. The AOZ1321DI-03L, AOZ1321DI-04L, and
AOZ1321DI-05L provide an output discharge circuit to
quickly discharge the output when the switch is disabled.
The P-channel MOSFET has typical on resistance of
60mΩ. The very low R
DS(ON)
significantly reduces the
power path dissipation. The input voltage range of
AOZ1321DI is from 1.6V 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 AOZ1321DI is available in 4-pin 1.2x1.6 DFN
package and is rated over the -40°C to +85°C ambient
temperature range.
Features
●
●
●
1.6V to 5.5V input voltage range
Low R
DS(ON)
(60m
Ω
typical at 5V)
Controlled turn-on slew rate
◗
◗
◗
800µs (AOZ1321DI-01L, -04L)
100µs (AOZ1321DI-03L, -06L)
1µs (AOZ1321DI-02L, -05L)
●
●
●
●
●
Output discharge function (-03L, -04L, -05L)
Low quiescent current (1.0µA typical)
Low shutdown current (<1µA)
4kV ESD Rating
Tiny 1.2x1.6 DFN package
Applications
●
●
●
●
●
●
Cellular phones
MP3 players
Personal media players
Notebook computers
Digital still cameras
Hot-swap applications
Typical Application
V
IN
IN
C1
V
OUT
OUT
AOZ1321DI
EN
R1
C2
1µF/10µF
OFF ON
GND
Rev. 1.1 August 2008
www.aosmd.com
Page 1 of 15
AOSMD [ ALPHA & OMEGA SEMICONDUCTORS ]
