NTE968
Integrated Circuit
3Terminal Positive Voltage Regulator, 15V
The NTE968 fixedvoltage regulator is a monolithic integrated circuit in a TO220 type package de-
signed for use in a wide variety of applications including local, oncard regulation. This regulator em-
ploys internal current limiting, thermal shutdown, and safearea 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 ShortCircuit Current Limiting
D
Output Transistor SafeArea 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, JunctiontoAmbient, R
thJA
65
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, JunctiontoCase, 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
= 23V, 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
14.4
15.0
15.6
V
5mA
I
O
1A, P
O
15W, 17.5V
V
in
30V
14.25
15.0 15.75
V
Line Regulation
Reg
line
T
J
= +25
C, Note 1
17.5V
V
in
30V
13
300
mV
20V
V
in
26V
6
150
mV
Load Regulation
Reg
load
T
J
= +25
C, Note 1
5mA
I
O
1.5A
52
300
mV
250mA
I
O
750mA
20
150
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.
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