LM78LXX Series 3-Terminal Positive Regulators

1 LM78 LXX Series3- terminal Positive RegulatorsGeneral DescriptionThe LM78 LXX Series of three terminal Positive Regulators isavailable with several fixed output voltages making themuseful in a wide range of applications. When used as a zenerdiode/resistor combination replacement, the LM78 LXX usu-ally results in an effective output impedance improvement oftwo orders of magnitude, and lower quiescent current . Theseregulators can provide local on card regulation, eliminatingthe distribution problems associated with single point regu-lation.

2 The voltages available allow the LM78 LXX to be usedin logic systems, instrumentation, HiFi, and other solid stateelectronic LM78 LXX is available in the plastic TO-92 (Z) package,the plastic SO-8 (M) package and a chip sized package(8-Bump micro SMD) using National s micro SMD packagetechnology. With adequate heat sinking the regulator candeliver 100mA output current . current limiting is included tolimit the peak output current to a safe value. Safe areaprotection for the output transistors is provided to limit inter-nal power dissipation.

3 If internal power dissipation becomestoo high for the heat sinking provided, the thermal shutdowncircuit takes over preventing the IC from in micro SMD packagenOutput voltage tolerances of 5% over the temperaturerangenOutput current of 100mAnInternal thermal overload protectionnOutput transistor safe area protectionnInternal short circuit current limitnAvailable in plastic TO-92 and plastic SO-8 low profilepackagesnNo external componentsnOutput voltages of , , , , 12V, 15 VnSee AN-1112 for micro SMD considerationsConnection DiagramsSO-8 Plastic (M)(Narrow Body)00774402 Top View8-Bump micro SMD00774424 Top View(Bump Side Down)(TO-92)Plastic Package (Z)00774403 Bottom Viewmicro SMD Marking Orientation00774433 Top ViewMay 2003LM78 LXX Series 3-Terminal Positive Regulators 2003 National Semiconductor Maximum Ratings(Note 1)

4 If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distributors for availability and Dissipation (Note 5)Internally LimitedInput Voltage35 VStorage Temperature 65 C to +150 CESD Susceptibility (Note 2)1kVOperating Junction TemperatureSO-8, TO-920 C to 125 Cmicro SMD 40 C to 85 CSoldering InformationInfrared or Convection (20 sec.)235 CWave Soldering (10 sec.)260 C (lead time)LM78 LXX Electrical CharacteristicsLimits in standard typeface are for TJ= 25 C,Bold typefaceapplies over 0 C to 125 C for SO-8 and TO-92 packages, and 40 C to 85 C for micro SMD are guaran-teed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods.

5 Unless other-wise specified: IO= 40mA, CI= F, CO= otherwise specified, VIN= 10 VSymbolParameterConditionsMinTypMaxUnits VOOutput VIN 20V1mA IO 40mA(Note 3) IO 70mA(Note 3) VOLine Regulation7V VIN 20V1875mV8V VIN 20V1054 VOLoad Regulation1mA IO 100mA20601mA IO 40mA530 IQQuiescent Current35mA IQQuiescent current Change8V VIN IO Noise Voltagef = 10 Hz to 100 kHz(Note 4)40 VRipple Rejectionf = 120 Hz8V VIN 16V4762dBIPKPeak Output Current140mAAverage Output voltage TempcoIO= 5mA CVIN(Min)Minimum Value of Input VoltageRequired to Maintain Line JAThermal Resistance(8-Bump micro SMD) C/WLM78L62 ACUnless otherwise specified, VIN= 12 VSymbolParameterConditionsMinTypMaxUnits VOOutput VIN 20V1mA IO 40mA(Note 3) IO 70mA(Note 3)

6 Electrical CharacteristicsLimits in standard typeface are for TJ= 25 C,Bold typefaceapplies over 0 C to 125 C for SO-8 and TO-92 packages, and 40 C to 85 C for micro SMD areguaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unlessotherwise specified: IO= 40mA, CI= F, CO= F. (Continued)LM78L62AC(Continued)Unless otherwise specified, VIN= 12 VSymbolParameterConditionsMinTypMaxUnits VOLine VIN 20V65175mV9V VIN 20V55125 VOLoad Regulation1mA IO 100mA13801mA IO 40mA640 IQQuiescent IQQuiescent current Change8V VIN IO Noise Voltagef = 10 Hz to 100 kHz(Note 4)50 VRipple Rejectionf = 120 Hz10V VIN 20V4046dBIPKPeak Output Current140mAAverage Output voltage TempcoIO= 5mA CVIN(Min)

7 Minimum Value of Input VoltageRequired to Maintain Line otherwise specified, VIN= 14 VSymbolParameterConditionsMinTypMaxUnits VOOutput VIN 23V1mA IO 40mA(Note 3) IO 70mA(Note 3) VOLine Regulation11V VIN 23V80175mV12V VIN 23V70125 VOLoad Regulation1mA IO 100mA15801mA IO 40mA840 IQQuiescent IQQuiescent current Change12V VIN IO Noise Voltagef = 10 Hz to 100 kHz(Note 4)60 VRipple Rejectionf = 120 Hz12V VIN 22V3945dBIPKPeak Output Current140mAAverage Output voltage TempcoIO= 5mA CVIN(Min)Minimum Value of Input VoltageRequired to Maintain Line Electrical CharacteristicsLimits in standard typeface are for TJ= 25 C,Bold typefaceapplies over 0 C to 125 C for SO-8 and TO-92 packages, and 40 C to 85 C for micro SMD areguaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods.

8 Unlessotherwise specified: IO= 40mA, CI= F, CO= F. (Continued)LM78L09 ACUnless otherwise specified, VIN= 15 VSymbolParameterConditionsMinTypMaxUnits VOOutput VIN 24V1mA IO 40mA(Note 3) IO 70mA(Note 3) VOLine VIN 24V100200mV13V VIN 24V90150 VOLoad Regulation1mA IO 100mA20901mA IO 40mA1045 IQQuiescent IQQuiescent current VIN IO Noise Voltage70 VRipple Rejectionf = 120 Hz15V VIN 25V3844dBIPKPeak Output Current140mAAverage Output voltage TempcoIO= 5mA CVIN(Min)Minimum Value of Input VoltageRequired to Maintain Line otherwise specified, VIN= 19 VSymbolParameterConditionsMinTypMaxUnits VOOutput VIN 27V1mA IO 40mA(Note 3) IO 70mA(Note 3)

9 VOLine VIN 27V30180mV16V VIN 27V20110 VOLoad Regulation1mA IO 100mA301001mA IO 40mA1050 IQQuiescent Current35mA IQQuiescent current Change16V VIN 27V11mA IO Noise Voltage80 VRipple Rejectionf = 120 Hz15V VIN 254054dBIPKPeak Output Current140mAAverage Output voltage TempcoIO= 5mA CLM78 LXX Electrical CharacteristicsLimits in standard typeface are for TJ= 25 C,Bold typefaceapplies over 0 C to 125 C for SO-8 and TO-92 packages, and 40 C to 85 C for micro SMD areguaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods.

10 Unlessotherwise specified: IO= 40mA, CI= F, CO= F. (Continued)LM78L12AC(Continued)Unless otherwise specified, VIN= 19 VSymbolParameterConditionsMinTypMaxUnits VIN(Min)Minimum Value of Input VoltageRequired to Maintain Line otherwise specified, VIN= 23 VSymbolParameterConditionsMinTypMaxUnits VOOutput VIN 30V1mA IO 40mA(Note 3) IO 70mA(Note 3) VOLine VIN 30V37250mV20V VIN 30V25140 VOLoad Regulation1mA IO 100mA351501mA IO 40mA1275 IQQuiescent Current35mA IQQuiescent current Change20V VIN 30V11mA IO Noise Voltage90 VRipple Rejectionf = 120 VIN Output Current140mAAverage Output voltage TempcoIO= 5mA CVIN(Min)Minimum Value of Input VoltageRequired to Maintain Line 1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.