Data Sheet

MC78LXXA / LM78LXXA — 3-Terminal 0.1 A Positive Voltage Regulator
© 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com
MC78LXXA / LM78LXXA Rev. 1.9 2
Block Diagram
Figure 1. Block Diagram
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-
ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-
tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The
absolute maximum ratings are stress ratings only. Values are at T
A
= 25°C unless otherwise noted.
Symbol Parameter Value Unit
V
I
Input Voltage
V
O
= 5 V to 8 V 30 V
V
O
= 12 V to 15 V 35 V
T
OPR
Operating Temperature Range -40 to +125°C °C
T
J(MAX)
Maximum Junction Temperature 150 °C
T
STG
Storage Temperature Range -65 to +150 °C
R
θJC
Thermal Resistance, Junction-Case TO-92 50 °C/W
R
θJA
Thermal Resistance, Junction-Air
TO-92 150 °C/W
SOT-89 225 °C/W
8-SOIC 160 °C/W
VI
3
2
GND
V0
1
I
R
SC
REFERENCE VOLTAGE
SHORT CIRCUIT
PROTECTION
THERMAL SHUTDOWN
CIRCUIT
+
-
Input
Output
-