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Low Dropout Voltage (Max. 0.6V)
Description
The KA78RM33 is a low-dropout voltage regulator suit-
able for various electronic equipments. It provides con-
stant voltage power source with surface mount type
package (D-PAK). The dropout voltage of KA78RM33 is
below 0.6V in full rated current(0.5A). This regulator has
various functions such as an over current protection, a
thermal shut down and the SOA (Safe operating Area)
protection.
PACKAGE DIMENSIONS
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Over Current Protection, Thermal Shutdown
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SOA Protection, Short Circuit Protection
Internal Block Diagram
V
IN
1
Q1
3 V
OUT
Current
Generator
Thermal
Shutdown
Protection
SOA
Protection
Short Circuit
Protection
Bandgap
Reference
Error
Amp.
R1
Output
Drive
R2
GND 2
Packages
D-PAK
TO-220
2
1
3
1 2 3
1. V
IN
2. GND
3. V
OUT
漏2006 Fairchild Semiconductor Corporation
1
www.fairchildsemi.com
KA78RM33 Rev. 1.0.4
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