NTE971 Datasheet, PDF (1/2 Pages) NTE Electronics – Linear Integrated Circuit Voltage Regulator, Negative, -24V, 1A

NTE971
Linear Integrated Circuit
Voltage Regulator, Negative, –24V, 1A
Description:
The NTE924 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 1A. Although designed primarily as a fixed regulator,
this device can be used with external components to obtain adjustable voltages and currents.
Features:
D No External Components Required
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40V
Internal Power Dissipation, P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Derate Above +25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.4mW/°C
Internal Power Dissipation (T_C = +25°C), P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Derate Above +75°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200mW/°C
Maximum Junction Temperature Range, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Thermal Resistance, Junction–to–Ambient, R_thJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C/W
Thermal Resistance, Junction–to–Case, R_thJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5°C/W
Electrical Characteristics: (V_IN = –33V, I_O = 500mA, T_J = 0° to +125°C unless 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, P_O ≤ 15W,
–38V ≤ V_IN ≤ –27V
T_J = +25°C,
Note 1
–38V ≤ V_IN ≤ –27V
–36V ≤ V_IN ≤ –30V
T_J = +25°C, 5mA ≤ I_O ≤ 1.5A
Note 1
250mA ≤ I_O ≤ 750mA
–23.0 –24.0 –25.0 V
–22.8 –24.0 –25.2 V
– 31 480 mV
– 14 240
– 60 480 mV
– 25 240