参数资料
型号: G961-25ADJTEU
厂商: Global Mixed-mode Technology Inc.
英文描述: 1A Low Dropout Regulator with Enable
中文描述: 1A低压差稳压器与启用
文件页数: 1/6页
文件大小: 231K
代理商: G961-25ADJTEU
Ver: 1.2
Apr 01, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G961
Global Mixed-mode Technology Inc.
1A Low Dropout Regulator with Enable
Features
Adjustable Output from 1.2V to 4.8V Using Ex-
ternal Resistors
1.5V, 1.8V and 2.5V Options by Setting ADJ Pin
Below 0.2V
Over current and over temperature protection
400mV dropout @1A
Enable pin
10A quiescent current in shutdown
SOT-89-5 Package
Applications
Battery powered systems
Motherboards
Peripheral cards
Network cards
Set Top Boxes
Medical Equipment
Notebook Computers
General Description
The G961 is a high performance positive voltage
regulator designed for use in applications requiring
very low dropout voltage at up to 1 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 G961 provides excellent regulation
over variations in line, load and temperature.
The SOT-89-5 is available with 1.5V, 1.8V and 2.5V
internally preset outputs that are also adjustable using
external resistors.
Ordering Information
ORDER
NUMBER
ORDER NUMBER
(Pb free)
MARKING
TEMP.
RANGE
PACKAGE
G961-15ADJTEU
G961-15ADJTEUf
961-15
-40°C ~ +85°C
SOT-89-5
G961-18ADJTEU
G961-18ADJTEUf
961-18
-40°C ~ +85°C
SOT-89-5
G961-25ADJTEU
G961-25ADJTEUf
961-25
-40°C ~ +85°C
SOT-89-5
Note: TE: SOT-89-5
U : Tape & Reel
e.g. 18 denotes the 1.8V output voltage.
Pin Configuration
Typical Application Circuit
VEN
VIN
VO
R1
R2
VEN
VIN
VO
ADJ
GND
G961
1.2 (R1+R2)
VO =
R2
Volts
VO
ADJ
SOT-89-5
G961
1
23
5
4
GND
VEN
VIN
C1
22F
C2
47F
R2=12k
Ω is recommended
R3 should be connected for current I
ENH
restriction as V
EN > VIN+0.3V
R3
I
ENH
VEN
VIN
VO
R1
R2
VEN
VIN
VO
ADJ
GND
G961
1.2 (R1+R2)
VO =
R2
Volts
VO
ADJ
SOT-89-5
G961
1
23
5
4
GND
VEN
VIN
C1
22F
C2
47F
R2=12k
Ω is recommended
R3 should be connected for current I
ENH
restriction as V
EN > VIN+0.3V
R3
I
ENH
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