Data Sheet

KA78XXE / KA78XXAE — 3-Terminal 1 A Positive Voltage Regulator
© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
KA78XXE / KA78XXAE Rev. 1.9 3
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 18 V 35 V
V
O
= 24 V 40 V
R
θJC
Thermal Resistance Junction-Case (TO-220) 5 °C/W
R
θJA
Thermal Resistance Junction-Air (TO-220) 65 °C/W
T
OPR
Operating Temperature Range
KA78XXE / KA78XXER -40 to +125
°C
KA78XXAE 0 to +125
T
STG
Storage Temperature Range -65 to +150 °C