GMT G527 Current limited load switch Datasheet

G527
Global Mixed-mode Technology
Current Limited Load Switch
Features
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General Description
The G527 is a current limited N-channel MOSFET
power switch designed for highside load switching
applications. The low RDS(ON) N-channel power
Input Voltage Range: 2.7V to 5.5V
Programmable Over-Current Threshold
70mΩ Typical RDS(ON) at VIN=5V
Only 2.5V Needed for ON/OFF Control
Under-Voltage Lockout
Thermal Shutdown
No Reverse Leakage Current
Open-drain Fault Flag Pin
Available with or without output shutdown
pull-low resister
MOSFET is driven by a built-in charge pump which
generates a voltage higher than the supply voltage to
fully enhance the switch.
This switch operates with inputs ranging from 2.7V
to 5.5V, making it ideal for both 3.3V and 5V systems. An integrated current-limiting circuit protects
the input supply against large current which may
cause the supply to fall out of regulation. The G527
is also protected from thermal overload which limits
power dissipation and junction temperatures. Current limit threshold is programmed with a resistor
from SET to ground. When the output voltage is
higher than input voltage, the power switch is
turned off by internal output reverse-voltage comparator.
Output Reverse-Voltage Protection
SOT-23-6, TSOT-23-6, MSOP-8 and MSOP-8
(FD) Packages
UL Certification_#E232223
CB Test Certification by IEC 60950-1:2005 (2nd
Edition); Am 1:2009
Applications
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An open-drain flag output is also available to indicate fault condition, including overcurrent, thermal
shutdown, and output reverse-voltage condition. In
shutdown mode, the supply current decreases to
less than 1µA. The reverse leakage current is also
less than 1µA.
Hot Swap Supplies
Notebook Computers
Peripheral Ports
Personal Communication Devices
The G527 is available in SOT-23-6, TSOT-23-6,
MSOP-8 and MSOP-8 (FD) packages.
Pin Configuration
Typical Application Circuit
G527
OUT 1
G527
6
GND 2
IN
5 SET
IN 1
8 OUT
IN 2
7 OUT
6 FLAG
EN(EN) 3
4 EN(EN)
FLAG 3
GND 4
SOT-23-6/TSOT-23-6
G527
Power Supply
2.7V to 5.5V
EN(EN) 3
Thermal
Pad
GND 4
Load
0.1µF
22µF
FLAG
RSET
ON
G527
8
OUT
1µF*
5 SET
MSOP-8
IN 1
IN 2
IN
OUT
EN(EN)
SET
OFF
7 OUT
6 FLAG
*: 1µF of input capacitor is enough in most application cases.
5 SET
If the PCB trace of power rail to IN is long, larger input capacitor is necessary.
MSOP-8 (FD)
Note: Recommend connecting the Thermal Pad to
the GND for excellent power dissipation.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.4
Nov 14, 2013
1
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