Diodes AP2281 User Manual
Ap2281, Description, Features
AP2281
Document number: DS31359 Rev. 7 - 2
1 of 11
November 2013
© Diodes Incorporated
AP2281
SINGLE SLEW RATE CONTROLLED LOAD SWITCH
Description
The AP2281 slew rate controlled load switch is a single P-channel
MOSFET power switch designed for high-side load-switching
applications. The MOSFET has a typical R
DS(ON)
of 80m
at 5V,
allowing increased load current handling capacity with a low forward
voltage drop. The turn-on slew rate of the device is controlled
internally.
The AP2281 load switch is designed to operate from 1.5V to 6V,
making it ideal for 1.8V, 2.5V, 3.3V, and 5V systems. The typical
quiescent supply current is only 0.01µA.
Features
Wide input voltage range: 1.5V – 6V
Low
R
DS(ON)
: 80mΩ typical @ 5V
Turn-on slew rate controlled
AP2281-1: 1ms turn-on rise time
AP2281-3: 100µs turn-on rise time with internal discharge
Very low turn-on quiescent current: << 1µA
Fast load discharge option
Temperature range -40°C to +85°C
Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
Smart
Phones
PDA
Cell
Phones
GPS
Navigators
PMP/MP4
Notebook and Pocket PC
Pin Assignments
IN
IN
EN
U-DFN2018-6
1
2
3
6
5
4
OUT
OUT
GND
( Top View )
7
SOT26
OUT
GND
EN
IN
IN
(Top View)
6
4
3
2
1
GND
5
Notes:
1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.
2. S more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Typical Applications Circuit
1uF
IN
GND
EN
OUT
Enable
0.1uF
V
IN
V
OUT
Green