NTE988 Integrated Circuit Positive 3 Terminal Voltage Regulator, 100mA Description: The NTE988 is a 3–terminal positive voltage regulator in a TO92 type package and employs internal current–limiting and thermal shutdown, making it essentially indestructible. If adequate heat sinking is provided, this device can deliver up to 100mA output current. The NTE988 is intended for use as a fixed voltage regulator in a wide range of applications including local (on–card) regulation for elimination of noise and distribution problems associated with single–point regulation. In addition, this device can be used with power pass elements to make a high current voltage regulator. When used as a Zener diode/resistor combination replacement, the NTE988 offers an effective output impedance improvement of typically two orders of magnitude, along with lower quiescent current and lower noise. Features: D Output Current up to 100mA D No External Components D Internal Thermal Overload Protection D Internal Short Circuit Current–Limiting D Output Voltage Tolerance of ±5% over the Temperature Range Absolute Maximum Ratings: Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V Internal Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited Operating Junction Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +125°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C Lead Temperature (Soldering, 10 sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +265°C Electrical Characteristics: (0° ≤ TJ ≤ +125°C, VIN = 12V, IO = 40mA, CIN = 0.33µF, CO = 0.1µF, Note 1 unless otherwise specified) Parameter Symbol Test Conditions Output Voltage VO TJ = +25°C Line Regulation VR(LINE) TJ = +25°C Min Typ Max Unit 5.95 6.20 6.45 V 8.5V ≤ VI ≤ 20V – 65 175 mV 9.0V ≤ VI ≤ 20V – 55 125 mV Note 1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length of the package. The data above represents pulse test conditions with junction temperatures as indicated at the initiation of the tests. Electrical Characteristics (Cont’d): (0° ≤ TJ ≤ +125°C, VIN = 12V, IO = 40mA, CIN = 0.33µF, CO = 0.1µF, Note 1 unless otherwise specified) Parameter Load Regulation Output Voltage (Note 2) Symbol VO IQ Quiescent Current Change With Line ∆IQ With Load Ripple Rejection Dropout Voltage Min Typ Max Unit 1mA ≤ IO ≤ 100mA – 13 80 mV 1mA ≤ IO ≤ 40mA – 6 40 mV 8.5V ≤ VI ≤ 20V 1mA ≤ IO ≤ 40mA 5.9 – 6.5 V 8.5V ≤ VI ≤ VMax 1mA ≤ IO ≤ 70mA 5.9 – 6.5 V – 2.0 5.5 mA 8.0V ≤ VI ≤ 20V – – 1.5 mA 1mA ≤ IO ≤ 40mA – – 0.1 mA TA = +25°C, 10Hz ≤ f ≤100kHz – 50 – µV 40 46 – dB VR(LOAD) TJ = +25°C Quiescent Current Noise Test Conditions NO ∆VI/∆VO f = 120Hz, 10V ≤ VI ≤ 20V, TJ = +25°C VDO TJ = +25°C – 1.7 – V Peak Output/Output Short Circuit Current Ipk/IOS TJ = +25°C – 140 – mA Average Temperature Coefficient of Output Voltage ∆VO/∆T IO = 5mA – –0.75 – mV/°C Note 1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length of the package. The data above represents pulse test conditions with junction temperatures as indicated at the initiation of the tests. Note 2. Power Dissipation ≤ 0.75W. .135 (3.45) Min .210 (5.33) Max Seating Plane .021 (.445) Dia Max .500 (12.7) Min VIN VOUT GND .100 (2.54) .050 (1.27) .165 (4.2) Max .105 (2.67) Max .105 (2.67) Max .205 (5.2) Max