KA278R09
Features
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- 2A / 9V Output low dropout voltage regulator TO220 Full-Mold package (4PIN) Overcurrent protection, Thermal shutdown Overvoltage protection, Short-Circuit protection With output disable function
Description
The KA278R09 is a low-dropout voltage regulator suitable for various electronic equipments. It provide constant voltage power source with TO-220F-4 lead full mold package. Dropout voltage of KA278R09 is below 0.5V in full rated current(2A). This regulator has various function such as peak current protection, thermal shut down, overvoltage protection and output disable function.
TO-220F-4L
1. Vin 2. Vo 3. GND 4. Vdis
Internal Block Diagram
Q1
Vin
Vo
THERMAL SHUTDOWN
OVERVOLTAGE PROTECTION
BANDGAP REFERENCE
+ R1
SOA PROTECTION HIGH / LOW Vdis 4 + OUTPUT ON / OFF
1.4V
SHORT-CIRCUIT SHORTCIRCUIT
PROTECTION
R2
3 GND
Rev. 1.0.2
©2001 Fairchild Semiconductor Corporation
Absolute Maximum Ratings
Parameter Input Voltage Disable Voltage...
