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 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 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: (TA = +25C unless otherwise specified) Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40V Internal Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited Derate Above +25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.4mW/C Internal Power Dissipation (TC = +25C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited Derate Above +75C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200mW/C Maximum Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +150C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Thermal Resistance, Junction-to-Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65C/W Thermal Resistance, Junction-to-Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5C/W Electrical Characteristics: (VIN = -33V, IO = 500mA, TJ = 0 to +125C unless otherwise specified)
Parameter Output Voltage Symbol VO TJ = +25C 5mA IO 1A, PO 15W, -38V VIN -27V Line Regulation Load Regulation RegLine RegLoad TJ = +25C, Note 1 TJ = +25C, Note 1 -38V VIN -27V -36V VIN -30V 5mA IO 1.5A 250mA IO 750mA Test Conditions Min Typ Max -25.0 -25.2 480 240 480 240 mV Unit V V mV -23.0 -24.0 -22.8 -24.0 - - - - 31 14 60 25
Electrical Characteristics: (VIN = -33V, IO = 500mA, TJ = 0 to +125C unless otherwise specified)
Parameter Quiescent Current Quiescent Current Change Ripple Rejection Dropout Voltage Output Noise Voltage Output Resistance Short-Circuit Current Limit Peak Output Current Average Temperature Coefficient of Output Voltage Symbol IB IB RR VIN - VO Vn rO Isc Imax TCVO TJ = +25C -38V VIN -27V 5mA IO 1A 38V VIN 28V, f = 120Hz TJ = +25C, IO = 1A TA = +25C, 10Hz f 100kHz f = 1kHz TA = +25C, VIN = 35V TJ = +25C Test Conditions Min - - - - - - - - - - Typ 4.6 - - 54 2.0 10 20 0.2 2.2 -1.5 Max 8.0 1.0 0.5 - - - - - - - dB V V/VO m A A mV/C Unit mA mA
Note 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account spearately. Pulse testing with low duty cycle is used.
.420 (10.67) Max .110 (2.79)
.147 (3.75) Dia Max
.500 (12.7) Max
.250 (6.35) Max .500 (12.7) Min .070 (1.78) Max GND .100 (2.54) VOUT VIN/Tab
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