NTE959 Linear Integrated Circuit Voltage Regulator, Negative, -18V, 1A
Description: The NTE959 voltage regulator employs current limiting, thermal shutdown, and safe-area compensation which makes it remarkably rugged under most operating conditions. With adequate heat- sinking they can deliver output currents in excess of 1.0 amperes. 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -35V 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 = -27V, IO = 500mA, TJ = 0 to +125C unless otherwise specified)
Parameter Output Voltage Symbol VO TJ = +25C 5mA IO 1A, PO 15W, -33V VIN -21V Line Regulation Load Regulation RegLine RegLoad TJ = +25C, Note 1 TJ = +25C, Note 1 -33V VIN -21V -30V VIN -24V 5mA IO 1.5A 250mA IO 750mA Test Conditions Min Typ Max -18.7 -18.9 360 180 360 180 mV Unit V V mV -17.3 -18.0 -17.1 -18.0 - - - - 25 10 55 22
Electrical Characteristics: (VIN = -27V, 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 -33V VIN -21V 5mA IO 1A 32V VIN 21V, f = 120Hz TJ = +25C, IO = 1A TA = +25C, 10Hz f 100kHz f = 1kHz TA = +25C, VIN = 35V TJ = +25C Test Conditions Min - - - - - - - - - - Typ 4.5 - - 57 2.0 10 19 0.2 2.2 -1.1 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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