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| Datasheet File OCR Text: |
| NTE1918 3 Terminal Positive Voltage Regulator 15V, 3A Description: The NTE1918 is a positive 3-terminal voltage regulator in a TO3 type package capable of driving loads in excess of 3A. This device employs internal current limiting, thermal shutdown, and safe-area compensation. Although designed primarily as a fixed voltage regulator, the NTE1918 can be used with external components to obtain adjustable voltages and currents. Features: D Output Current in Excess of 3A D Power Dissipation: 30W 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: Input Voltage , VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V Power Dissipation (TA = +25C, Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited Power Dissipation (TC = +25C, Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +150C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Thermal Resistance, Junction-to-Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5C/W Thermal Resistance, Junction-to-Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35C/W Note 1. Although power dissipation is internally limited, specifications apply only for PO 30W. Electrical Characteristics: (0 TJ +125C, VIN = 20V, IO = 3Aunless otherwise specified) Parameter Output Voltage Symbol VO Regline Regload Test Conditions TJ = +25C, 5mA IO 3A 5mA IO 2A, 17.5V VIN 30V Line Regulation TJ = +25C, 20V VIN 26V, Note 2 18V VIN 30V, IO = 1A, Note 2 Load Regulation TJ = +25C, 5mA IO 3A, Note 2 5mA IO 3A, Note 2 Min 14.4 14.25 - - - - Typ 15.0 15.00 7.5 7.5 10 15 Max 15.6 15.75 55 55 30 80 Unit V V mV mV mV mV 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. Electrical Characteristics (Cont'd): (0 TJ +125C, VIN = 20V, IO = 3Aunless 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 5mA IO 3A TJ = +25C, 17.6V VIN 40V, IO = 5mA 18V VIN 30V, IO = 1A TJ = +25C, f = 10Hz to 100kHz f = 1kHz TA = +25C, VIN = 40V TJ = +25C, 18.5V VIN 28.5V, f = 120Hz, IO = 2A TJ = +25C, IO = 3A TJ = +25C IO = 5mA Test Conditions TJ = +25C, 5mA IO 3A Min - - - - - - - 55 - - - Typ 3.5 4.0 0.3 0.3 10 2 0.2 65 2.2 5 0.6 Max 5.0 6.0 1.0 1.0 - - 1.2 - 2.5 - - Unit mA mA mA mA V m A dB V A mV/C 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 VOUT .215 (5.45) .040 (1.02) 1.187 (30.16) .665 (16.9) .188 (4.8) R Max .156 (3.96) Dia (2 Holes) .430 (10.92) VIN .525 (13.35) R Max Common/Case |
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