KA378R05TU Datasheet, PDF (1/8 Pages) Fairchild Semiconductor – Low Dropout Voltage Regulator

KA378R05
Low Dropout Voltage Regulator
www.fairchildsemi.com
Features
• 3A / 5V 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 KA378R05 is a low-dropout voltage regulator suitable
for various electronic equipments. It provides constant
voltage power source with TO-220 4 lead full mold package.
Dropout voltage of KA378R05 is below 0.5V in full rated
current(3A). This regulator has various function such as
peak current protection, thermal shut down, overvoltage
protection and output disable function.
TO-220F-4L
1
1.Vin 2. Vo 3. GND 4. Vdis
Internal Block Diagram
Vin 1
THERMAL SHUTDOWN
BANDGAP REFERENCE
HIGH / LOW
Vdis 4
-
+
OUTPUT
ON / OFF
1.4V
OVERVOLTAGE
PROTECTION
-
+
SOA PROTECTION
SH_SO_HR_OT_R-_TC_CI_IR_RC_CUU_II_TT
PROTECTION
Q1
R1
R2
2 Vo
3
GND
©2001 Fairchild Semiconductor Corporation
Rev. 1.0.2