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| NTE1903 Integrated Circuit Negative 3 Terminal Voltage Regulator, -12V, 100mA Description: The NTE1903 is a negative 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 NTE1903 remarkably rugged. In most applications, no external components are required for operation. The NTE1903 is useful for on-card regulation or any other application where a regulated negative voltage at a modest current level is needed. This device offers a substantial advantage over the 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 +70C Maximum Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +150C Lead Temperature (During Soldering, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300C Note 1. Thermal resistance, junction-to-ambient is 180C/W when mounted with 0.4" leads on a PC board and 160C/W when mounted with .250" leads on a PC board. Electrical Characteristics: (VI = -19V, IO = 40mA, CI = 0.33F, CO = 0.1F, 0 TJ +125C, Note 2 unless otherwise specified) Parameter Output Voltage Symbol VO Regline Test Conditions TJ = +25C -27V VI -14.8V, 1mA IO 100mA Line Regulation TJ = +25C, -27V VI -14.6V Min -11.5 -11.4 - Typ -12.0 -12.0 - Max -12.5 -12.6 45 Unit V V mV Electrical Characteristics (Cont'd): (VI = -19V, IO = 40mA, CI = 0.33F, CO = 0.1F, 0 TJ +125C, Note 2 unless otherwise specified) Parameter Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Input Voltage Required to Maintain Line Regulation Symbol Regload IB IB Vn RR TCVO Test Conditions TJ = +25C, 1mA IO 100mA IO = 100mA With line, -27V VI -14.8V With load, 1mA IO 40mA TJ = +25C, f = 10Hz to 10kHz -25V VI -15V, f = 120Hz TJ = +25C Min - - - - - 52 - Typ - 2 - - 96 - - Max 100 6 0.25 0.1 - - -14.5 Unit mV mA mA mA V dB V Note 2. To ensure constant junction temperature, low duty cycle pulse testing is used. .135 (3.45) Min .210 (5.33) Max Seating Plane .500 (12.7) Min GND VIN VOUT .021 (.445) Dia Max .100 (2.54) .050 (1.27) .105 (2.67) Max .205 (5.2) Max .165 (4.2) Max .105 (2.67) Max |
Price & Availability of NTE1903
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