Global Mixed-mode Technology Inc.
G9133
3.3V 1A Low Dropout Regulator with Disable
Features
General Description
Dropout voltage 0.5V @ 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
TO220 4pin Full-Mold package
ON/OFF control
The G9133 positive 3.3V voltage regulator features
the ability to source 1A of output current. The dropout
voltage is 0.5V 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 (VIN < 3.3V).
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 VEN pin is pro-
vided to disable the output when needed.
Ordering Information
PIN OPTION
ORDER
NUMBER
ORDER NUMBER
(Pb free)
TEMP.
RANGE
MARKING
PACKAGE
1
2
3
4
G9133TF1T
G9133TH1T
G9133TF1Tf
G9133TH1Tf
G9133
G9133
-40°C to +85°C TO220F-4
-40°C to +85°C TO220F-4
VIN
VIN
VO
VO
GND
GND
VEN
VEN
Order Number Identification
GXXXX XX
X
X
Packing Type
Pin Option
Package Type
Part Number
PACKAGE TYPE
PIN OPTION
PACKING
T : Tube
TF : TO-220F-4 (short lead)
TH : TO-220F-4 (long lead)
1
2
3
4
1.: VIN
VO
GND
VEN
Package Type
Typical Application
TO-220F-4
Top View
VEN
IO
VIN
VOUT
G9133
C1
4.7µF
COUT
47µF
IQ
1
2
3
4
V
VIN O GND VEN
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.7 Preliminary
Jul 12, 2006
1