Global Mixed-mode Technology Inc.
G9125
2.5V 1A Low Dropout Regulator with Disable
Features
General Description
Dropout voltage 0.6V @ IO = 1A
Output current in excess of 1A
Output voltage accuracy ±2.5%
Quiescent current, typically 5mA
Internal short circuit current limit
Internal over temperature protection
TO-220 4pin Full-Mold, TO-252-5 package
ON/OFF control
The G9125 positive 2.5V voltage regulator features
the ability to source 1A of output current. The dropout
voltage is 0.6V at 1A output current. The typical qui-
escent current is 5mA. Furthermore, the quiescent
current is smaller when the regulator is in the dropout
mode.
Familiar regulator features such as over tem-
perature and over current protection circuits are
provided to prevent it from being damaged by
abnormal operating conditions. A Vdis pin is pro-
vided to disable the output when needed.
Ordering Information
ORDER NUMBER
(Pb free)
PIN OPTION
PACKAGE
ORDER
NUMBER
TEMP.
RANGE
MARKING
1
2
3
4
G9125TF1T
G9125TH1T
G9125TJU
G9125TF1Tf
G9125TH1Tf
G9125TJUf
G9125
G9125
G9125
-40°C to +85°C TO-220F-4
-40°C to +85°C TO-220F-4
-40°C to +85°C TO-252-5
VIN
VIN
VO
VO
GND
GND
Vdis
Vdis
Order Number Identification
GXXXX XX
X
X
Packing Type
Pin Option (only TO-220F-4)
Package Type
Part Number
PACKAGE TYPE
PIN OPTION (only TO-220F-4)
PACKING
T : Tube
TF: TO220F-4 (short lead)
TH: TO220F-4 (long lead)
TJ: TO-252-5
1
2
3
4
1.: VIN
VO
GND
Vdis
U: Tape & Reel
Package Type
Typical Application
TO-220F-4
TO-252-5
ON/OFF
VIN
IO
VOUT
G9125
Top View
C1
4.7µF
COUT
47µF
IQ
3
VO
4
NC
5
GND
1
2
1
2
3
4
VIN Vdis
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.6 Preliminary
Nov 11, 2005
1