Transcription of LM340/LM78XX Series 3-Terminal Positive Regulators
1 LM340/LM78XX Series3-Terminal Positive RegulatorsGeneral DescriptionThe LM140/LM340A/LM340/LM7800C monolithic 3-terminalpositive voltage Regulators employ internal current-limiting,thermal shutdown and safe-area compensation, makingthem essentially indestructible. If adequate heat sinking isprovided, they can deliver over output current. They areintended as fixed voltage Regulators in a wide range ofapplications including local (on-card) regulation for elimina-tion of noise and distribution problems associated withsingle-point regulation. In addition to use as fixed voltageregulators, these devices can be used with external compo-nents to obtain adjustable output voltages and effort was expended to make the entire seriesof Regulators easy to use and minimize the number of exter-nal components.
2 It is not necessary to bypass the output,although this does improve transient response. Input by-passing is needed only if the regulator is located far from thefilter capacitor of the power 5V, 12V, and 15V regulator options are available in thesteel TO-3 power package. The LM340A/LM340/LM7800 Cseries is available in the TO-220 plastic power package, andthe is available in the SOT-223 package, as wellas the and LM340-12 in the surface-mountTO-263 specifications at 1A loadnOutput voltage tolerances of 2% at Tj= 25 C and 4%over the temperature range (LM340A)nLine regulation of of VOUT/V of VINat 1A load(LM340A)nLoad regulation of of VOUT/A (LM340A)
3 NInternal thermal overload protectionnInternal short-circuit current limitnOutput transistor safe area protectionnP+Product Enhancement testedDeviceOutputVoltagesPackagesLM1405 , 12, 15 TO-3 (K)LM340A/LM340 5, 12, 15 TO-3 (K), TO-220 (T),SOT-223 (MP), TO-263 (S)(5V and 12V only)LM7800C5, 8, 12,15TO-220 (T)Typical ApplicationsFixed Output RegulatorAdjustable Output Regulator00778101*Required if the regulator is located far from the power supply filter.**Although no output capacitor is needed for stability, it does help transientresponse. (If needed, use F, ceramic disc).
4 00778102 VOUT= 5V + (5V/R1 + IQ) R2 5V/R1>3IQ,load regulation (Lr) [(R1 + R2)/R1] (Lrof LM340-5).Current RegulatorComparison between SOT-223 and D-Pak (TO-252)Packages00778103 IQ= mA over line and load 1:1 November 2002LM340/LM78XX Series 3-Terminal Positive Regulators 2002 National Semiconductor Corporation Maximum Ratings(Note 1)If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distributors for availability and specifications.(Note 5)DC Input VoltageAll Devices exceptLM7824/LM7824C35 VLM7824/LM7824C40 VInternal Power Dissipation (Note 2)Internally LimitedMaximum Junction Temperature150 CStorage Temperature Range 65 C to +150 CLead Temperature (Soldering, 10 sec.)
5 TO-3 Package (K)300 CTO-220 Package (T), TO-263 Package (S)230 CESD Susceptibility (Note 3)2 kVOperating Conditions(Note 1)Temperature Range (TA) (Note 2)LM140A, LM140 55 C to +125 CLM340A, LM340, LM7805C,LM7812C, LM7815C, LM7808C0 C to +125 CLM340A Electrical CharacteristicsIOUT= 1A, 55 C TJ +150 C (LM140A), or 0 C TJ + 125 C (LM340A) unless otherwise specified (Note 4)Output Voltage5V12V15 VSymbolInput Voltage (unless otherwise noted)10V19V23 VUnitsParameterConditionsMin Typ Max Min Typ Max Min Typ MaxVOOutput Voltage TJ= 25 5 12 15 VPD 15W, 5 mA IO VVMIN VIN VMAX( VIN 20) ( VIN 27) ( VIN 30) V VOLine Regulation IO= 500 mA101822 mV VIN( VIN 20) ( VIN 27) ( VIN 30) VTJ= 25 C3 104 184 22 mV VIN( VIN 20) ( VIN 27) ( VIN 30) VTJ= 25 C4910 mVOver Temperature123030 mV VIN(8 VIN 12) (16 VIN 22) (20 VIN 26)
6 V VOLoad Regulation TJ= 25 C 5 mA IO 2512 3212 35 mV250 mA IO 750mA151921 mVOver Temperature,256075 mV5mA IO 1 AIQQ uiescentCurrentTJ= 25 C666 mAOver mA IQQuiescentCurrent5mA IO 25 C, IO= mAVMIN VIN VMAX( VIN 20) ( VIN 27) ( VIN 30) VIO= 500 mAVMIN VIN VMAX(8 VIN 25) (15 VIN 30) ( VIN 30) VVNO utput NoiseVoltageTA= 25 C, 10 Hz f 100 kHz407590 VRipple Rejection TJ= 25 C, f = 120 Hz, IO=1A688061726070dBor f = 120 Hz, IO= 500 mA,686160dBOver Temperature,VMIN VIN VMAX(8 VIN 18) (15 VIN 25)( VIN )VROD ropout Voltage TJ= 25 C, IO= Electrical Characteristics(Continued)IOUT= 1A, 55 C TJ +150 C (LM140A), or 0 C TJ + 125 C (LM340A) unless otherwise specified (Note 4)Output Voltage5V12V15 VSymbolInput Voltage (unless otherwise noted)10V19V23 VUnitsParameterConditionsMin Typ Max Min Typ Max Min Typ MaxOutputResistancef=1kHz81819m Short-CircuitCurrentTJ= 25 OutputCurrentTJ= 25 TC ofVOMin, TJ= 0 C, IO= 5 mA CVINI nput VoltageTJ= 25 CRequired RegulationLM140 Electrical Characteristics(Note 4)
7 55 C TJ +150 C unless otherwise specifiedOutput Voltage5V12V15 VSymbolInput Voltage (unless otherwise noted)10V19V23 VUnitsParameterConditionsMin Typ Max Min Typ Max Min Typ MaxVOOutput VoltageTJ= 25 C, 5 mA IO 5 12 15 VPD 15W, 5 mA IO VVMIN VIN VMAX(8 VIN 20) ( VIN 27) ( VIN 30)V VOLine RegulationIO= 500 mA TJ= 25 C3 504 1204 150 mV VIN(7 VIN 25) ( VIN 30) ( VIN 30)V 55 C TJ +150 C50120150 mV VIN(8 VIN 20) (15 VIN 27)( VIN 30)VIO 1 ATJ= 25 C50120150 mV VIN( VIN 20) ( VIN 27) ( VIN 30)V 55 C TJ +150 C256075 mV VIN(8 VIN 12) (16 VIN 22) (20 VIN 26) V VOLoad Regulation TJ= 25 C 5 mA IO 5012 12012 150 mV250 mA IP 750mA256075 mV 55 C TJ +150 C,50120150 mV5mA IO 1 AIQQ uiescent Current IO 1 ATJ= 25 C666 mA 55 C TJ +150 C777 mA IQQuiescent Current 5 mA IO 25 C, IO mAVMIN VIN VMAX(8 VIN 20) (15 VIN 27)( VIN 30)VIO= 500 mA, 55 C TJ +150 mAVMIN VIN VMAX(8 VIN 25) (15 VIN 30)( VIN 30)VLM340 Electrical Characteristics(Note 4) (Continued)
8 55 C TJ +150 C unless otherwise specifiedOutput Voltage5V12V15 VSymbolInput Voltage (unless otherwise noted)10V19V23 VUnitsParameterConditionsMin Typ Max Min Typ Max Min Typ MaxVNOutput NoiseVoltageTA= 25 C, 10 Hz f 100 kHz407590 VRipple RejectionIO 1A, TJ= 25 Cor68 8061 7260 70dBf = 120 HzIO 500 mA,686160dB 55 C TJ +150 CVMIN VIN VMAX(8 VIN 18) (15 VIN 25)( VIN )VROD ropout Voltage TJ= 25 C, IO= Resistance f = 1 kHz81819m Short-CircuitCurrentTJ= 25 OutputCurrentTJ= 25 TC ofVOUT0 C TJ +150 C, IO= 5 mA CVINI nput VoltageTJ= 25 C, IO 1 ARequired RegulationLM340/LM7800C Electrical Characteristics(Note 4)0 C TJ +125 C unless otherwise specifiedOutput Voltage5V12V15 VSymbolInput Voltage (unless otherwise noted)
9 10V19V23 VUnitsParameterConditionsMin Typ Max Min Typ Max Min Typ MaxVOOutput VoltageTJ= 25 C, 5 mA IO 5 12 15 VPD 15W, 5 mA IO VVMIN VIN VMAX( VIN 20) ( VIN 27)( VIN 30) V VOLine RegulationIO= 500 mA TJ= 25 C3 504 1204 150 mV VIN(7 VIN 25) ( VIN 30)( VIN 30) V0 C TJ +125 C50120150 mV VIN(8 VIN 20) (15 VIN 27) ( VIN 30) VIO 1 ATJ= 25 C50120150 mV VIN( VIN 20) ( VIN 27)( VIN 30) V0 C TJ +125 C256075 mV VIN(8 VIN 12) (16 VIN 22) (20 VIN 26) V VOLoad RegulationTJ= 25 C 5 mA IO 5012 12012 150 mV250 mA IO 750 mA256075 mV5mA IO 1A, 0 C TJ +125 C50120150 mVIQQ uiescent Current IO 1 ATJ= 25 C888 mA0 C TJ +125 mA IQQuiescent Current 5 mA IO Electrical Characteristics(Note 4) (Continued)0 C TJ +125 C unless otherwise specifiedOutput Voltage5V12V15 VSymbolInput Voltage (unless otherwise noted)10V19V23 VUnitsParameterConditionsMin Typ Max Min Typ Max Min Typ MaxChangeTJ= 25 C, IO mAVMIN VIN VMAX( VIN 20) ( VIN 27)( VIN 30)
10 VIO 500 mA, 0 C TJ +125 mAVMIN VIN VMAX(7 VIN 25) ( VIN 30)( VIN 30) VVNO utput NoiseVoltageTA= 25 C, 10 Hz f 100 kHz407590 VRipple RejectionIO 1A, TJ=25 C62 8055 7254 70dBf = 120 Hzor IO 500 mA, 625554dB0 C TJ +125 CVMIN VIN VMAX(8 VIN 18) (15 VIN 25) ( VIN )VROD ropout VoltageTJ= 25 C, IO= Resistance f = 1 kHz81819m Short-Circuit Current TJ= 25 OutputCurrentTJ= 25 TC of VOUT0 C TJ +125 C, IO= 5 mA CVINI nput VoltageTJ= 25 C, IO 1 ARequired RegulationNote 1:Absolute Maximum Ratings are limits beyond which damage to the device may occur.
