Global Mixed-mode Technology Inc.
G965
1.5A Low Dropout Regulator with Enable
Notebook Computers
Features
General Description
Adjustable Output from 1.2V to 4.8V Using Ex-
ternal Resistors
The G965 is a high performance positive voltage
regulator designed for use in applications requiring
very low dropout voltage at up to 1.5 Amps. Since it
has superior dropout characteristics compared to
regular LDOs, it can be used to supply 2.5V on moth-
erboards 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 dissi-
pation while shut down. The G965 provides excellent
regulation over variations in line, load and tempera-
ture.
1.5V, 1.8V and 2.5V Options by Setting ADJ Pin
Below 0.2V
Over Current and Over Temperature Protection
500mV Dropout @1.5A
Enable Pin
10µA Quiescent Current in Shutdown
SOP-8 Package
Applications
Battery Powered Systems
Motherboards
Peripheral Cards
Network Cards
Set Top Boxes
Medical Equipment
The SOP-8 is available with 1.5V, 1.8V and 2.5V in-
ternally preset outputs that are also adjustable using
external resistors.
Ordering Information
ORDER
NUMBER
ORDER NUMBER
MARKING
TEMP. RANGE
PACKAGE
(Pb free)
G965-15ADJP1U
G965-18ADJP1U
G965-25ADJP1U
Note: P1: SOP-8
U : Tape & Reel
G965-15ADJP1Uf
G965-18ADJP1Uf
G965-25ADJP1Uf
G965-15
G965-18
G965-25
-40°C ~ +85°C
-40°C ~ +85°C
-40°C ~ +85°C
SOP-8
SOP-8
SOP-8
e.g. 18 denotes the 1.8V output voltage.
Pin Configuration
Typical Application Circuit
IENH
G965
R3
G965
VEN
VEN
VIN
VIN
VO
GND
GND
8
1
2
3
4
VEN
VIN
VO
GND
VO
ADJ
7
R1
R2
C1
22µF
6
5
C2
47µF
GND
GND
ADJ
SOP-8
1.2 (R1+R2)
R2
Volts
VO =
R2=12kΩ is recommended
R3 should be connected for current IENH
restriction as VEN > VIN+0.3V
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.5
Apr 01, 2005
1