L78L05 - L78L00 SERIES POSITIVE VOLTAGE REGULATORS s s s s...

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L78L00 SERIES POSITIVE VOLTAGE REGULATORS February 1999 OUTPUT CURRENT UP TO 100 mA OUTPUT VOLTAGESOF 3.3; 5; 6; 8; 9; 12; 15; 18; 24V THERMAL OVERLOADPROTECTION SHORT CIRCUIT PROTECTION NO EXTERNAL COMPONENTS ARE REQUIRED AVAILABLEIN EITHER ± 5% (AC) OR ± 10% (C) SELECTION DESCRIPTION The L78L00 series of three-terminal positive regulators employ internal current limiting and thermal shutdown, making them essentially indestructible. If adequate heatsink is provided, they can deliver up to 100 mA output current. They are intended as fixed voltage regulators in a wide range of applications including local or on-card regulation for elimination of noise and distribution problems associated with single-point regulation. In addition, they can be used with power pass elements to make high-current voltage regulators. The L78L00 series used as Zener diode/resistor combination replacement, offers an effective BLOCK DIAGRAM SO-8 TO-92 output impedance improvement of typically two orders of magnetude, along with lower quiescent current and lower noise. SOT-89 1/19
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ABSOLUTE MAXIMUM RATING Symbol Parameter Value Unit V i DC Input Voltage V o = 3.3 V to 9 V 30 V V o = 12 V to 15 V 35 V V o = 18 V to 24 V 40 V I o Output Current 100 mA P tot Power Dissipation Internally limited (*) T stg Storage Temperature Range - 40 to 150 o C T op Operating Junction Temperature RangeFor L78L00C, L78L00AC For L78L00AB 0to125 -40to125 o C o C (*) Our SO-8 package used for Voltage Regulators is modified internally to have pins 2, 3, 6 and 7 electrically commoned to the die attach flag. This particular frame decreases the total thermal resistance of the package and increases its ability to dissipate power when an appropriate area of copper on the printed circuit board is available for heatsinking. The external dimensions are the same as for the standard SO-8 TEST CIRCUITS THERMAL DATA Symbol Parameter SO-8 TO-92 SOT-89 Unit R thj-case R thj-amb Thermal Resistance Junction-case Max Thermal Resistance Junction-ambient Max 20 55 (*) 200 15 o C/W o (*) Considering 6cm 2 of copper Board heat-sink L78L00 2/19
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CONNECTION DIAGRAM AND ORDERING NUMBERS (top view) ORDERING NUMBERS Type SO-8 TO-92 SOT-89 Output Voltage L78L33AC L78L33AB L78L05C L78L05AC L78L05AB L78L06C L78L06AC L78L06AB L78L08C L78L08AC L78L08AB L78L09C L78L09AC L78L09AB L78L12C L78L12AC L78L12AB L78L15C L78L15AC L78L15AB L78L18C L78L18AC L78L18AB L78L24C L78L24AC L78L24AB L78L33ACD L78L33ABD L78L05CD L78L05ACD L78L05ABD L78L06CD L78L06ACD L78L06ABD L78L08CD L78L08ACD L78L08ABD L78L09CD L78L09ACD L78L09ABD L78L12CD L78L12ACD L78L12ABD L78L15CD L78L15ACD L78L15ABD L78L18CD L78L18ACD L78L18ABD L78L24CD L78L24ACD L78L24ABD L78L33ACZ L78L33ABZ L78L05CZ L78L05ACZ L78L05ABZ L78L06CZ L78L06ACZ L78L06ABZ L78L08CZ L78L08ACZ L78L08ABZ L78L09CZ L78L09ACZ L78L09ABZ L78L12CZ L78L12ACZ L78L12ABZ L78L15CZ L78L15ACZ L78L15ABZ L78L18CZ L78L18ACZ L78L18ABZ L78L24CZ L78L24ACZ L78L24ABZ L78L33ACU L78L33ABU L78L05ACU L78L05ABU L78L06ACU L78L06ABU L78L08ACU L78L08ABU L78L09ACU L78L09ABU L78L12ACU L78L12ABU L78L15ACU L78L15ABU L78L18ACU L78L18ABU L78L24ACU L78L24ABU 3.3 V 5V 6V 8V 9V 12 V 12 V 12 V 15 V 15 V 15 V 18 V 18 V 18 V 24 V 24 V 24 V SO-8 TO-92 pin 1 = V OUT pin 2 = GND pin 3 = V IN BOTTOM VIEW SOT-89 L78L00 3/19
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L78L05 - L78L00 SERIES POSITIVE VOLTAGE REGULATORS s s s s...

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