Global Mixed-mode Technology Inc.
G9218
1.8V 2A Low Dropout Regulator with Enable
Features
General Description
ꢀDropout voltage 0.7V @ IO = 2A
ꢀOutput current in excess of 2A
ꢀOutput voltage accuracy ±2.5%
ꢀQuiescent current, typically 1.8mA
ꢀInternal short circuit current limit
ꢀInternal over temperature protection
ꢀTO220 4pin Full-Mold package
ꢀON/OFF control
The G9218 positive 1.8V voltage regulator features
the ability to source 2A of output current. The dropout
voltage is 0.7V at 2A output current. The typical qui-
escent current is 1.8mA. 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 Ven pin is pro-
vided to disable the output when needed.
Ordering Information
PIN OPTION
MARKING
PIN PACKAGE
ORDER NUMBER
TEMP. RANGE
1
2
3
4
G9218TF1T
G9218TH1T
G9218
G9218
-40°C to +85°C
-40°C to +85°C
TO220F-4L
TO220F-4L
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
TF: TO220F-4L (short lead)
TH: TO220F-4L (long lead)
PIN OPTION
PACKING
1
2
3
4
VEN
T: Tube
1.: VIN
VO
GND
Typical Application
Package Type
IENH
R=5kΩ
VEN
TO220F-4L
Top View
IO
VIN
VOUT
G9218
C1
COUT
47µF
IQ
4.7µF
1
2
3
4
VO GND
VEN
VIN
R=5kΩ is recommended
R must be connected for current IENH
restriction as VEN > VIN+0.3V
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.1 Preliminary
Apr 20, 2004
1