MBX 239 240 G5281RC1U Schip Video U1 Pag 25.pdf

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Global Mixed-mode Technology Inc.
G5281
Slew Rate Controlled Load Switch
Features
2.0V to 5.5V Input Voltage Range
Very Low R
DS(ON)
, Typically 80m. (5V)
Internal Current Limited to 2A
Slew Rate Limited Turn-On Time 1.5ms (5V)
Fast Shutdown Load Discharge
TTL/CMOS Input Logic Level
No Reverse Output Current
8 Pin TDFN Package
General Description
The G5281 is a N-channel MOSFET power switch
designed for high-side load-switching applications, and
the device has a typical R
DS(ON)
of 80m and the output
current is limited to 2A.The G5281 has a slew rate
limited turnon load switch and offers a shutdown load
discharge circuit to rapidly turn off a load circuit when
the switch is disabled.
The G5281 operates with an input voltage ranging
from 2.0V to 5.5V. It is suitable for both 3V and 5V
systems. The G5281 also features an under voltage
lock out which turns the switch off when an input un-
der-voltage condition exists. Input logic levels are TTL
and 2.5V to 5V CMOS compatible. In shutdown mode,
the supply current decreases to less than 1µA.The
G5281 is available in a 8 pin TDFN package.
Applications
Cellular Telephones
Digital Still Cameras
Hot Swap Supplies
Notebook Computers
Personal Communication Devices
Personal Digital Assistants (PDAs)
Ordering Information
ORDER
NUMBER
G5281RC1U
MARKING
5281
TEMP.
RANGE
-40°C to 85°C
PACKAGE
(Pb free)
TDFN2X2-8
Note: RC: TDFN2X2-8
1: Bonding Code
U: Tape & Reel
Pin Configuration
Typical Application Circuit
G5281
G5281
IN
OUT
EN
GND
1
2
3
4
Thermal
Pad
8
7
6
5
IN
IN
IN
IN
GND
GND
V
IN
EN
IN
EN
GND
OUT
V
OUT
C
IN
1µF
C
OUT
0.1µF
TDFN2X2-8
Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
Ver: 1.1
Oct 22, 2007
TEL: 886-3-5788833
http://www.gmt.com.tw
1

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