NTE1920 Datasheet, PDF (1/2 Pages) NTE Electronics – 3 Terminal Positive Voltage Regulator 18V, 1.5A

NTE1920
3 Terminal Positive Voltage Regulator
18V, 1.5A
Description:
The NTE1920 is a positive 3–terminal voltage regulator in a TO3 type package suitable for numerous
applications including local, on–card regulation requiring up to 1.5A. This device features thermal
shutdown and current limiting making the NTE1920 remarkably rugged.
Although designed primarily as a fixed voltage regulator, this device can be used with external compo-
nents to obtain adjustable voltages and currents.
Features:
D Internal Thermal Overload Protection
D Output Transistor Safe Area Protection
D Internal Short Circuit Current Limit
D No External Components Required
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Input Voltage , V_IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V
Internal Power Dissipation (T_A = +25°C), P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.5mW/°C
Internal Power Dissipation (T_C = +25°C), P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182mW/°C
Operating Junction Temperature Range, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Thermal Resistance, Junction–to–Case, R_thJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5°C/W
Electrical Characteristics: (–55° ≤ T_J ≤ +150°C, V_IN = 27V, I_O = 0.5Aunless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Output Voltage
Line Regulation
Load Regulation
V_O
Reg_line
Reg_load
T_J = +25°C
5mA ≤ I_O ≤ 1A, 22V ≤ V_IN ≤ 33V, P_O ≤ 15W
T_J = +25°C, 21V ≤ V_IN ≤ 33V, Note 1
T_J = +25°C, 24V ≤ V_IN ≤ 30V, Note 1
T_J = +25°C, 5mA ≤ I_O ≤ 1.5A, Note 1
T_J = +25°C, 250mA ≤ I_O ≤ 750mA, Note 1
17.3 18.0 18.7 V
17.1 18.0 18.9 V
–
7 180 mV
–
4
90 mV
–
35 180 mV
–
12 90 mV
Note 1. Load and line regulation are specified at constant junction temperature. Change in V_O due
to heating effects must be taken into account separately. Pulse testing with low duty cycle is
used.