NTE966
Integrated Circuit
3–Terminal Positive Voltage Regulator, 12V
The NTE966 fixed–voltage regulator is a monolithic integrated circuit in a TO220 type package de-
signed for use in a wide variety of applications including local, on–card regulation. This regulator em-
ploys internal current limiting, thermal shutdown, and safe–area compensation. With adequate heat-
sinking it can deliver output currents in excess of 1.0 ampere. Although designed primarily as a fixed
voltage regulator, this device can be used with external components to obtain adjustable voltages and
currents.
Features:
D Output Current in Excess of 1.0 Ampere
D No External Components Reguired
D Internal Thermal Overload Protection
D Internal Short–Circuit Current Limiting
D Output Transistor Safe–Area Compensation
Absolute Maximum Ratings:
(T
A
= +25°C unless otherwise specified)
Input Voltage, V
in
35Vdc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (T
A
= +25°C), P
D
Internally Limited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate above +25°C 15.4mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (T
C
= +25°C), P
D
Internally Limited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate above +75°C 200mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, Junction–to–Ambient, R
thJA
65°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, Junction–to–Case, R
thJC
5°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Junction Temperature Range, T
J
–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Junction Temperature Range, T
stg
–65° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics:
(V
in
= 19V, I
O
= 500mA, T
J
= 0° to +125°C unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Output Voltage V
O
T
J
= +25°C 11.5 12.0 12.5 V
5mA ≤ I
O
≤ 1A, P
O
≤ 15W, 14.5V ≤ V
in
≤ 27V 11.4 12.0 12.6 V
Line Regulation Reg
line
T
J
= +25°C, Note 1 14.5V ≤ V
in
≤ 20V – 13 240 mV
16V ≤ V
in
≤ 22V – 6 120 mV
Load Regulation Reg
load
T
J
= +25°C, Note 1 5mA ≤ I
O
≤ 1.5A – 45 160 mV
250mA ≤ I
O
≤ 750mA – 16 80 mV
Note 1. Load and line regulation are specified at constant junction temperature. Changes in V
O
due
to heating effects must be taken into account separately. Pulse testing with low duty cycle
is used.
