NTE1906 Integrated Circuit Positive 3 Terminal Voltage Regulator, 18V, 100mA Description: The NTE1906 is a positive 3–terminal voltage regulator in a TO92 type package suitable for numerous applications requiring up to 100mA. This device features thermal shutdown and current limiting making the NTE1906 remarkably rugged. In most applications, no external components are required. The NTE1906 is useful for on–card regulation or any other application where a regulated positive voltage at a modest current level is needed. This device offers a substantial advantage over he common resistor/zener diode approach. Features: D Internal Short–Circuit Current Limiting D Internal Thermal Overload Protection D No External Components Required Absolute Maximum Ratings: Input Voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V Internal Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited Operating Junction Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C Maximum Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°C Storage Junction Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C Lead Temperature (During Soldring, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C Note 1. Thermal resistance, junction–to–ambient is 180°C/W when mounted with 0.4” leads on a PC board and 160°C/W when mounted with .250” leads on a PC board. Electrical Characteristics: (VI = 27V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, 0° < TJ < +125°C unless otherwise specified) Parameter Output Voltage Line Regulation Symbol VO Regline Test Conditions Min Typ Max Unit TJ = +25°C 17.3 18.0 18.7 V 20.7V ≤ VI ≤ 33V, 1mA ≤ IO ≤ 100mA 17.1 18.0 18.9 V – – 325 mV TJ = +25°C, 20.7V ≤ VI ≤ 33V Electrical Characteristics (Cont’d): (VI = 27V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, 0° < TJ < +125°C unless otherwise specified) Parameter Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Long–Term Stability Symbol Regload IB ∆IB Vn Test Conditions Min Typ Max Unit TJ = +25°C, 1mA ≤ IO ≤ 100mA – – 170 mV TJ = +125°C – 2 6 mA With line, 21V ≤ VI ≤ 33V – – 1.5 mA With load, 1mA ≤ IO ≤ 40mA – – 0.1 mA TJ = +25°C, f = 10Hz to 10kHz – 150 – µV – 56 – mV/1kHrs ∆VO/∆t Ripple Rejection RR f = 120Hz, 23V ≤ VI ≤ 33V 33 48 – dB Dropout Voltage VDO TJ = +25°C, IO = 40mA – 1.7 – V .135 (3.45) Min .210 (5.33) Max Seating Plane .500 (12.7) Min .021 (.445) Dia Max VOUT VIN GND .100 (2.54) .050 (1.27) .105 (2.67) Max .205 (5.2) Max .165 (4.2) Max .105 (2.67) Max