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Low Dropout Voltage Regulator
Description
The KA78RM33 is a low-dropout voltage regulator suitable
for various electronic equipment. It provide constant voltage
power source with surface mount type package (D-PAK).
dropout voltage of KA78RM33 is below 0.6V in full rated
current(0.5A). This regulator has various function such as
over current protection, thermal shut down and SOA (Safe
operating Area) protection.
D-PAK
0.5A / 3.3V Output low dropout voltage regulator
Low dropout voltage (Max. 0.6V)
Over current protection, Thermal shutdown
SOA protection, Shortcircuit protection
1
TO-220
1
1. Vin 2. GND 3. Vout
Internal Block Digram
Q1
Vin 1
3 Vout
Current
Generator
Thermal
Shutdown
Protection
SOA
Protection
Short Circuit
Protection
Bandgap
Reference
Error
Amp.
R1
Output
Drive
R2
GND
2
3
Rev. 1.0.1
漏2001 Fairchild Semiconductor Corporation