G967
Global Mixed-mode Technology Inc.
500mA Low Dropout Regulator with Enable
Features
General Description
Adjustable Output from 1.2V to 5V Using External Resistors
1.5V, 1.8V and 2.5V Options by Setting ADJ Pin
Below 0.2V
Over Current and Over Temperature Protection
300mV Dropout @ 0.5A
Enable Pin
10µA Quiescent Current in Shutdown
MSOP-8, TDFN3X3-6 and TDFN3X3-8 Package
The G967 is a high performance positive voltage
regulator designed for use in applications requiring
very low dropout voltage at up to 0.5 Amps. Since it
has superior dropout characteristics compared to
regular LDOs, it can be used to supply 2.5V on motherboards or 1.5V, 1.8V on peripheral cards from the
3.3V supply thus allowing the elimination of costly
heatsinks. An enable pin further reduces power dissipation while shut down. The G967 provides excellent
regulation over variations in line, load and temperature.
Applications
Battery Powered Systems
Motherboards
Peripheral Cards
Network Cards
Set Top Boxes
Medical Equipment
Notebook Computers
The G967 is available with 1.5V, 1.8V and 2.5V internally preset outputs that are also adjustable using external resistors.
Pin Configuration
Typical Application Circuit
G967
VIN
6
1
VEN
VEN
GND
2
G967
NC
VEN
1
8
2
7
VO
3
6
5
VIN
VO
ADJ
GND
4
4
VO
GND
TDFN3X3-6 (LLPTM-6)
C2
10µF
R2
G967
NC
1
8
VEN
VIN
2
7
VO
NC
3
6
NC
GND
MSOP-8
C1
4.7µF
GND
ADJ
R1
GND
ADJ
3
VIN
VO
5
GND
VIN
Thermal
Pad
G967
IENH
R3
VIN
4
5
ADJ
Thermal
Pad
1.2 (R1+R2)
Volts
R2
R2=12kΩ is recommended
R3 should be connected for current IENH
restriction as VEN > VIN+0.3V
VO =
TDFN3X3-8
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.4
Mar 10, 2006
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