NTE1918

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 = +25°C, Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited Power Dissipation (TC = +25°C, Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +150°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5°C/W Thermal Resistance, Junction–to–Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35°C/W Note 1. Although power dissipation is internally limited, specifications apply only for PO ≤ 30W. Electrical Characteristics: (0° ≤ TJ ≤ +125°C, VIN = 20V, IO = 3Aunless otherwise specified) Parameter Output Voltage Line Regulation Load Regulation Symbol VO Regline Regload Test Conditions Min Typ Max Unit TJ = +25°C, 5mA ≤ IO ≤ 3A 14.4 15.0 15.6 V 5mA ≤ IO ≤ 2A, 17.5V ≤ VIN ≤ 30V 14.25 15.00 15.75 V TJ = +25°C, 20V ≤ VIN ≤ 26V, Note 2 – 7.5 55 mV 18V ≤ VIN ≤ 30V, IO = 1A, Note 2 – 7.5 55 mV TJ = +25°C, 5mA ≤ IO ≤ 3A, Note 2 – 10 30 mV 5mA ≤ IO ≤ 3A, Note 2 – 15 80 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 ≤ +125°C, VIN = 20V, IO = 3Aunless otherwise specified) Parameter Quiescent Current Quiescent Current Change Symbol Test Conditions IQ IQ Min Typ Max Unit TJ = +25°C, 5mA ≤ IO ≤ 3A – 3.5 5.0 mA 5mA ≤ IO ≤ 3A – 4.0 6.0 mA TJ = +25°C, 17.6V ≤ VIN ≤ 40V, IO = 5mA – 0.3 1.0 mA 18V ≤ VIN ≤ 30V, IO = 1A – 0.3 1.0 mA Output Noise Voltage Vn TJ = +25°C, f = 10Hz to 100kHz – 10 – µV Output Resistance rO f = 1kHz – 2 – mΩ Short Circuit Current Limit Isc TA = +25°C, VIN = 40V – 0.2 1.2 A Ripple Rejection Ratio RR TJ = +25°C, 18.5V ≤ VIN ≤ 28.5V, f = 120Hz, IO = 2A 55 65 – dB TJ = +25°C, IO = 3A – 2.2 2.5 V TJ = +25°C – 5 – A IO = 5mA – 0.6 – mV/°C Dropout Voltage Peak Output Current IOmax Average Temperature Coefficient of Output Voltage 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 .040 (1.02) 1.187 (30.16) .665 (16.9) .215 (5.45) .188 (4.8) R Max .156 (3.96) Dia (2 Holes) .430 (10.92) VIN .525 (13.35) R Max Common/Case