Data Sheet

KA78RM33R — Low Dropout Voltage Regulator
© 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com
KA78RM33R Rev. 1.1.2 2
Block Diagram
Figure 1. Block Diagram
Typical Application
Notes:
1. C
I
is required if the regulator is located an appreciable distance from power supply filter.
2. C
O
improves stability and transient response. Refer to the figure 12 for ESR values of capacitors.
Figure 2. DC Parameters
3
1Vin
3
Vout
GND
Q1
R1
R2
Current
Generator
Thermal
Shutdown
Protection
SOA
Protection
Short Circuit
Protection
Bandgap
Reference
Error
Amp.
Output
Drive
 

&
2
&
,

μF
μF
KA78RM33R
Output
Input
33