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L78L12C Dataheets PDF



Part Number L78L12C
Manufacturers Niko-Sem
Logo Niko-Sem
Description Three-Terminal Positive-Voltage Regulator
Datasheet L78L12C DatasheetL78L12C Datasheet (PDF)

NIKO-SEM Three-Terminal Positive-Voltage Regulator FEATURES L78L00 Series GENERAL DESCRIPTION This Series of fixed-voltage monolithic integrated circuit voltage regulators is designed for a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with singlepoint regulation. In addition, they can be used with power-pass elements to make high-current voltage regulators. One of these regulators can deliver up to 100 .

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NIKO-SEM Three-Terminal Positive-Voltage Regulator FEATURES L78L00 Series GENERAL DESCRIPTION This Series of fixed-voltage monolithic integrated circuit voltage regulators is designed for a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with singlepoint regulation. In addition, they can be used with power-pass elements to make high-current voltage regulators. One of these regulators can deliver up to 100 mA of output current. The internal limiting and thermal shutdown features of these regulators male them essentially immune to overload. When used as a replacement for a zener diode-resistor combination, an effective improvement in output impedance can be obtain -ed together with lower-bias current. z 3-terminal regulators z Output current up to 100 mA z No external component z Internal thermal overload protection z Internal short-circuit current limiting z Direct replacements for LM78L00, μA78L00 and AN78L00 series APPLICATIONS z Linear regulator z Instrumentation z Switching power supplies z PCs, Industrial equipment PIN CONFIGURATIONS DEVICE SELECTION GUIDE Device Package Marking L78L05N TO-92 78L05 L78L05C SOT-89 78L05 L78L12N TO-92 78L12 L78L12C SOT-89 78L12 1 MAY-31-2001 Free Datasheet http://www.datasheet4u.net/ NIKO-SEM Three-Terminal Positive-Voltage Regulator L78L00 Series ABSOLUTE MAXIMUM RATINGS PARAMETER Input Voltage - V I Continuous total power dissipation Storage Temperature Range - TSTG Junction Temperature - TJ Lead Temperature (Soldering, 10 Seconds) - TL VALUE 30V (See Note 1) -65 to +150 °C 125 °C 260 °C Note1: To avoid exceeding the design maximum virtual junction temperature, three ratings should not be exceeded. Due to variations in individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be activated at power levels slightly above or below the rated dissipation. DISSIPATION RATING TABLE 1 – FREE-AIR TEMPERATURE PACKAGE TO-92 SOT-89 TA ≤ 25°C POWER RATING 650 mW 500 mW DERATING FACTOR 6.2 mW/°C 4.0 mW/°C DERATING ABOVE TA 25 °C 25 °C TA = 70°C POWER RATING 350 mW 300 mW † The TO-92 package dissipation rating is based on thermal resistance θJA measured in still air with the device mounted in an Augat socket. The bottom of the package is 10mm (0.375 in) above the stock. DISSIPATION RATING TABLE 2 – CASE TEMPERATURE PACKAGE TO-92 SOT-89 TA ≤ 25°C POWER RATING 1600 mW 3125 mW DERATING FACTOR 28.6 mW/°C 25.0 mW/°C DERATING ABOVE TC 94 °C TC = 125°C POWER RATING 713 mW RECOMMENDED OPERATING CONDITIONS PARAMETER Input Voltage - V I L78L05 L78L12 Output Current - IOUT Operating Virtual Junction Temperature - TJ VALUE 7V to 20V 14.5V to 27V 100 mA (Max) 0 to 125 °C 2 MAY-31-2001 Free Datasheet http://www.datasheet4u.net/ NIKO-SEM Three-Terminal Positive-Voltage Regulator L78L00 Series ELECTRICAL SPECIFICATIONS (L78L05) (VI = 10V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF, 0 °C < TJ < +125 °C unless otherwise noted.) PARAMETER Output Voltage TEST CONDITIONS MIN 4.8 TYP MAX UNITS 5.0 55 45 11 5.0 5.2 150 100 60 30 5.25 5.25 6.0 5.5 1.5 0.1 V mV TJ = +25 °C TJ = +25 °C, IO = 40 mA Line Regulation 7.0V ≤ VI ≤ 20V 8.0V ≤ VI ≤ 20V TJ = +25 °C Load Regulation 1.0 mA ≤ IO ≤ 100 mA 1.0 mA ≤ IO ≤ 40 mA 7.0V ≤ VI ≤ 20V, 1.0 mA ≤ IO ≤ 40 mA Output Voltage VI = 10V, 1.0 mA ≤ IO ≤ 70 mA T J = +25 °C Input Bias Current TJ = +125 °C Input Bias Current Change 8.0V ≤ VI ≤ 20V 1.0 mA ≤ IO ≤ 40 mA Output Noise Voltage TA = +25 °C, 10 Hz ≤ f ≤ 100 KHz TJ = +25 °C, IO = 40 mA, f = 120 Hz Ripple Rejection 8.0V ≤ VI ≤ 18V Dropout Voltage TJ = +25 °C mV V mA mA µV nA V 4.75 4.75 3.8 40 41 49 1.7 ELECTRICAL SPECIFICATIONS (L78L12) (VI = 19V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF, 0 °C < TJ < +125 °C unless otherwise noted.) PARAMETER Output Voltage TEST CONDITIONS MIN TYP MAX UNITS 12.0 120 100 20 10 12.5 250 200 100 50 12.6 12.6 6.5 6.0 1.5 0.1 V mV TJ = +25 °C 11.5 TJ = +25 °C, IO = 40 mA Line Regulation 14.5V ≤ VI ≤ 27V 16V ≤ VI ≤ 27V TJ = +25 °C Load Regulation 1.0 mA ≤ IO ≤ 100 mA 1.0 mA ≤ IO ≤ 40 mA 14.5V ≤ VI ≤ 27V, 1.0 mA ≤ IO ≤ 40 mA 11.4 Output Voltage 11.4 VI = 19V, 1.0 mA ≤ IO ≤ 70 mA TJ = +25 °C Input Bias Current TJ = +125 °C Input Bias Current Change 16V ≤ VI ≤ 27V 1.0 mA ≤ IO ≤ 40 mA Output Noise Voltage TA = +25 °C, 10 Hz ≤ f ≤ 100 KHz TJ = +25 °C, IO = 40 mA, f = 120 Hz 37 Ripple Rejection 15V ≤ VI ≤ 25V Dropout Voltage TJ = +25 °C 3 mV V mA mA µV nA V 4.2 80 42 1.7 MAY-31-2001 Free Datasheet http://www.datasheet4u.net/ NIKO-SEM Three-Terminal Positive-Voltage Regulator L78L00 Series TO-92 MECHANICAL DATA mm Min. 4.445 4.318 12.7 0.356 1.143 3.175 0.762 1.27 Typ. Max. 5.207 5.334 15.5 0.533 1.397 4.191 1.270 mm Min. 2.413 0.356 Typ. 2.540 Max. 2.667 0.533 Dimension A B C D E F G Dimension H I J K L M N 4 MAY-31-2001 Free Datasheet http://www.datasheet4u.net/ NIKO-SEM Three-Terminal Positive-Voltage Regulato.


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