Global Mixed-mode Technology Inc.
G9109A
9V 1A Low Dropout Regulator with Disable
Features
General Description
Dropout voltage 0.85V @ IO = 1A
Dropout voltage 0.4V @ IO = 0.5A
Output current in excess of 1A
Output voltage accuracy ±2.5%
Quiescent current, typically 1.2mA
Internal short circuit current limit
Internal over temperature protection
TO-220 4pin full-mold and SOP-8 package
ON/OFF control
The G9109A positive 9V voltage regulator features the
ability to source 1A of output current. The dropout
voltage is 0.85V at 1A output current. The typical qui-
escent current is 1.2mA. Furthermore, the quiescent
current is smaller when the regulator is in the dropout
mode (VIN < 9V).
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. Pin Vdis is pro-
vided to disable the output when needed.
Ordering Information
PACKAGE
TEMP. RANGE
MARKING
ORDER NUMBER
(Pb free)
G9109ATF1T
G9109ATH1T
G9109AP11U
G9109A
G9109A
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
P1: SOP-8
TO-220F-4
TO-220F-4
SOP-8
G9109A
Note:TF : TO-220F-4 (short lead)
1: Bonding Code
TH : TO-220F-4 (long lead)
T : Tube
U: Tape & Reel
Package Type
Typical Application
G9109A
TO-220F-4
Top View
ON/OFF
VIN
VIN
1
2
3
4
8
7
6
5
VO
IO
VOUT
G9109A
GND
GND
NC
GND
GND
Vdis
C1
4.7µF
COUT
47µF
IQ
1
VIN
2
3
4
VO GND Vdis
SOP-8
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.0
Jan 08, 2007
1