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Disable Signal
VIN
VO
GND
VDIS
+
+
Ci
Co
Description
THE GM78R09 is a low - dropout voltage regulator suit-
able for various electronic equipments. It provides con-
stant voltage power source with TO-220 4 lead full mold
package. Dropout voltage of GM78R09 is below 0.5V in
full rated current (1A). This regulator has various func-
tion such as peak current protection, thermal shut down,
overvoltage protection and output disable function.
Features
1A / 9V Output low dropout voltage regulator
TO-220 Full-Mold package (4PIN)
Overcurrent protection, Thermal shutdown
Overvoltage protection, Short-Circuit Protection
With output disable function
TYPIC APPLICATION CIRCUITS
www.gammamicro.com
1
Power Management
GM78R09
LOW DROPOUT VOLTAGE REGULATOR
Power Management
PRELIMINARY
GM78R09
TO-220F- 4L
1. V
IN
2. V
O
3. GND
4. V
DIS
1 2
34
— Ci is required if regulator is located an appreciable distance from power supply filter.
— Co improves stability and transient response. (Co > 47µF)