NTE NTE968

NTE968
Integrated Circuit
3–Terminal Positive Voltage Regulator, 15V
The NTE968 fixed–voltage regulator is a monolithic integrated circuit in a TO220 type package designed for use in a wide variety of applications including local, on–card regulation. This regulator employs internal current limiting, thermal shutdown, and safe–area compensation. With adequate heatsinking 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: (TA = +25°C unless otherwise specified)
Input Voltage, Vin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Vdc
Power Dissipation (TA = +25°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Derate above +25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.4mW/°C
Power Dissipation (TC = +25°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Derate above +75°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200mW/°C
Thermal Resistance, Junction–to–Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C/W
Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5°C/W
Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Storage Junction Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Electrical Characteristics: (Vin = 23V, IO = 500mA, TJ = 0° to +125°C unless otherwise specified)
Parameter
Output Voltage
Line Regulation
Load Regulation
Symbol
VO
Regline
Regload
Test Conditions
Min
Typ
Max
Unit
TJ = +25°C
14.4
15.0
15.6
V
5mA ≤ IO ≤ 1A, PO ≤ 15W, 17.5V ≤ Vin ≤ 30V
14.25 15.0 15.75
V
TJ = +25°C, Note 1
TJ = +25°C, Note 1
17.5V ≤ Vin ≤ 30V
–
13
300
mV
20V ≤ Vin ≤ 26V
–
6
150
mV
5mA ≤ IO ≤ 1.5A
–
52
300
mV
250mA ≤ IO ≤ 750mA
–
20
150
mV
Note 1. Load and line regulation are specified at constant junction temperature. Changes in VO due
to heating effects must be taken into account separately. Pulse testing with low duty cycle
is used.
Electrical Characteristics (Cont’d): (Vin = 23V, IO = 500mA, TJ = 0° to +125°C unless otherwise
specified)
Parameter
Symbol
Quiescent Current
IB
∆IB
Quiescent Current Change
Ripple Rejection
RR
Dropout Voltage
Vin – VO
Test Conditions
Min
Typ
Max
Unit
TJ = +25°C
–
4.4
8.0
mA
17.5V ≤ Vin ≤ 30V
–
–
1.0
mA
5mA ≤ IO ≤ 1A
–
–
0.5
mA
18.5V ≤ Vin ≤ 28.5V, f = 120Hz
–
58
–
dB
TJ = +25°C, IO = 1A
–
2
–
V
Output Noise Voltage
Vn
TA = +25°C, 10Hz ≤ f ≤ 100kHz
–
10
–
µV/VO
Output Resistance
rO
f = 1kHz
–
19
–
mΩ
Short–Circuit Current Limit
Isc
TA = +25°C, Vin = 35V
–
0.2
–
A
TJ = +25°C
–
2.2
–
A
–
–1.0
–
mV/°C
Peak Output Current
Imax
Average Temperature Coefficient
of Output Voltage
TCVO
.420 (10.67)
Max
.110 (2.79)
GND
.147 (3.75)
Dia Max
.500
(12.7)
Max
.250 (6.35)
Max
.500
(12.7)
Min
.070 (1.78)
Max
VIN
.100 (2.54)
VOUT
GND