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| 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 components 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: (TA = +25C unless otherwise specified) Input Voltage , VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V Internal Power Dissipation (TA = +25C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited Derate Above 25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.5mW/C Internal Power Dissipation (TC = +25C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited Derate Above 25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182mW/C Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +150C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Thermal Resistance, Junction-to-Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5C/W Electrical Characteristics: (-55 TJ +150C, VIN = 27V, IO = 0.5Aunless otherwise specified) Parameter Output Voltage Symbol VO Regline Regload TJ = +25C 5mA IO 1A, 22V VIN 33V, PO 15W Line Regulation TJ = +25C, 21V VIN 33V, Note 1 TJ = +25C, 24V VIN 30V, Note 1 Load Regulation TJ = +25C, 5mA IO 1.5A, Note 1 TJ = +25C, 250mA IO 750mA, Note 1 Test Conditions Min 17.3 17.1 - - - - Typ 18.0 18.0 7 4 35 12 Max 18.7 18.9 180 90 180 90 Unit V V mV mV mV mV Note 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. Electrical Characteristics (Cont'd): (-55 TJ +125C, VIN = 27V, IO = 0.5Aunless otherwise specified) Parameter Quiescent Current Quiescent Current Change Output Noise Voltage Output Resistance Short Circuit Current Limit Ripple Rejection Ratio Dropout Voltage Peak Output Current Average Temperature Coefficient of Output Voltage IOmax Symbol IQ IQ Vn rO Isc RR TJ = +25C 22V VIN 33V 5mA IO 1A TA = +25C, f = 10Hz to 100kHz f = 1kHz TA = +25C, VIN = 35V 22V VIN 33V, f = 120Hz TJ = +25C, IO = 1A TJ = +25C Test Conditions Min - - - - - - 59 - 1.3 - Typ 3.5 0.3 10 19 0.2 65 2.0 2.5 2.3 Max 6.0 0.8 40 - 1.2 - 2.5 3.3 - Unit mA mA mA V m A dB V A mV/C 0.04 0.50 Note 2. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. .135 (3.45) Max .350 (8.89) .875 (22.2) Dia Max Seating Plane .312 (7.93) Min .040 (1.02) VOUT .215 (5.45) 1.187 (30.16) .665 (16.9) .156 (3.96) Dia (2 Holes) .430 (10.92) .188 (4.8) R Max VIN .525 (13.35) R Max Common/Case |
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