NTE1912
Integrated Circuit
Positive 3 Terminal Voltage Regulator,
12V, 3A
Description:
The NTE1912 is a 3 terminal fixed positive voltage regulator in a TO3 type package designed for use
in applications requiring a well regulated positive output voltage. Outstanding features include full power
usage up to 3A of load current, internal current limiting, thermal shutdown, and safe area protection on
the chip, providing protection of the series pass Darlington, under most operating conditions. Hermeti-
cally sealed steel packages are utilized for high reliability and low thermal resistance. A lownoise tem-
perature stable bandgap reference is the key design factor insuring excellent temperature regulation
of the NTE1912. This coupled to a very low output impedance insures superior load regulation.
Features:
D
Guaranteed Power Dissipation: P
D
= 30W @ T
C
= 57.5
C
D
Guaranteed InputOutput Differential: V
IN
V
O
= +2.5V
D
Low Noise, Band Gap Reference
D
Remote Sense Capability
D
Sample Power Cycled BurnIn
D
Guaranteed Thermal Resistance Junction to Case: R
JC
= 2.25
C/W
Absolute Maximum Ratings:
Input Voltage (Note 1), V
IN
30V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation, P
D
Internally Limited
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate Above T
C
= 57.5
C
444mW/
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Junction Temperature Range, T
J
55
to +150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
65
to +150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (During Soldering, 60sec Max), T
L
+300
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, Junction to Case, R
JC
2.25
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note 1. Short circuit protection is only assured to V
IN
max. In case of short circuit, with inputoutput
voltages approaching V
IN
max, regulator may require the removal of the input voltage to re-
start.
Electrical Characteristics: (T
J
= +25
C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Output Voltage
V
O
V
IN
= 15V to 22V, I
O
= 10mA to 3A, Note 2
11.05
12.0
13.05
V
InputOutput Differential
V
IN
V
O
I
O
= 3A, T
J
= 0 to +125
C
2.5
V
Line Regulation
Reg
Line
V
IN
= 15V to 27V, I
O
= 2A, Note 2
1.0
% V
O
Load Regulation
Reg
Load
V
IN
= 17V, I
O
= 10mA to 3A, Note 2
0.6
% V
O
Quiescent Current
I
Q
V
IN
= 15V, I
O
= 10mA
20
mA
Quiescent Current Line
I
Q(Line)
V
IN
= 15V to 22V, I
O
= 10mA
5
mA
Quiescent Current Load
I
Q(Load)
V
IN
= 15V, I
O
= 10mA to 3A
5
mA
Current Limit
I
LIM
V
IN
= 17V, Note 2
6.5
A
Temperature Coefficient
T
C
V
IN
= 15V, I
O
= 100mA, T
J
= 0 to +125
C
0.02
% V
O
/
C
Output Noise Voltage
V
N
V
IN
= 15V, I
O
= 100mA. T
J
= 0 to +125
C, Note 3
10
V
rms
/V
Ripple Attenuation
R
A
V
IN
= 17V, I
O
= 2A, T
J
= 0 to +125
C, Note 4
60
dB
Power Dissipation
P
D
V
IN
V
O
(2.5V to 10V), I
O
= 10mA to 3A,
T
J
= 0 to +125
C
30
W
Note 2. Low duty cycle pulse testing with Kelvin connections required. Die temperature changes
must be accounted for separatly.
Note 3. BW = 10Hz to 100kHz.
Note 4. Ripple attenuation is specified for a 1Vrms, 120Hz, input ripple. Ripple attenuation is mini-
mum of 60dB at 5V output and is 1dB less for each volt increase in the output voltage.
1.187 (30.16)
.875 (22.2)
Dia Max
.665
(16.9)
.430
(10.92)
Seating
Plane
.040 (1.02)
.312 (7.93) Min
.135 (3.45) Max
.350 (8.89)
V
OUT
Common/Case
V
IN
.215 (5.45)
.525 (13.35) R Max
.156 (3.96) Dia
(2 Holes)
.188 (4.8) R Max
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