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| NTE1938 Integrated Circuit Positive Voltage Regulator, 15V, 2A Features: D 3 Pin Plastic Package TO3P D Only Output Capacitor is Externally Required D Precise Setting Voltage of 2% D Wide Input Voltage Range D Built-in Current Foldback Protection D Ideal Combination of Passivated Power Transistor and High Reliability Flip-Chip Circuit Absolute Maximum Ratings: (TA = +25C unless otherwise specified) DC Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45V Power Dissipation, PC (TC =+ 25C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50W (No Fin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2W Thermal Resistance, Junction-to-Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2C/W Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -30 to +125C Operating Ambient Temperature Range, Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +80C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -30 to +125C Electrical Characteristics: (TA = +25C unless otherwise specified) Parameter DC Input Voltage Output Voltage Output Current Line Regulation Load Regulation Temperature Coefficient Ripple Rejection Foldback Current Short-Circuit Current Symbol VIN VO IO VLINE Kt RR IS1 IS2 f = 100Hz to 120HZ VIN = 19.5V to 26.5V, IO = 0.5A VLOAD VIN = 23V, IO = 0 to 2A IO = 2A VIN = 23V, IO = 0.5A Test Conditions Min Typ Max 18 0 - - - - 2.4 - - - 10 80 0.5 60 - - 40 2 30 200 - - - 0.6 14.8 15.0 15.2 Unit V V A mV mV mV/C dB A A External Circuit D1 2 3 1 + VIN DC Input - C1 V O DC Output Note 1. Output capacitor C1 (47 to 100f) shall be connected directly to output terminal (Pin1) and GND terminal (PIn3) as shown above. Note 2. When wiring between the regulator and the load is long, another capacitor (47 to 100f) shall be added in parallel with the load. Note 3. If there is a possibility of reverse biasing between input and output, a protection diode (D1) is to be added. The recommended diode for D1 is NTE116. .190 (4.82) .615 (15.62) VIN .787 (20.0) .591 (15.02) .126 (3.22) Dia .787 (20.0) VO VIN GND .215 (5.47) |
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