LM78LXX Series

3-Terminal Positive Regulators

General Description

The LM78LXX series of three terminal positive regulators is

available with several fixed output voltages making them

useful in a wide range of applications.When used as a zener

diode/resistor combination replacement,the LM78LXX usu-

ally results in an effective output impedance improvement of

two orders of magnitude,and lower quiescent current.These

regulators can provide local on card regulation,eliminating

the distribution problems associated with single point regu-

lation.The voltages available allow the LM78LXX to be used

in logic systems,instrumentation,HiFi,and other solid state

electronic equipment.

The LM78LXX 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 package

technology.With adequate heat sinking the regulator can

deliver100mA output current.Current limiting is included to

limit the peak output current to a safe value.Safe area

protection for the output transistors is provided to limit inter-

nal power dissipation.If internal power dissipation becomes

too high for the heat sinking provided,the thermal shutdown

circuit takes over preventing the IC from overheating.

Features

n LM78L05in micro SMD package

n Output voltage tolerances of±5%over the temperature

range

n Output current of100mA

n Internal thermal overload protection

n Output transistor safe area protection

n Internal short circuit current limit

n Available in plastic TO-92and plastic SO-8low profile

packages

n No external components

n Output voltages of5.0V,6.2V,8.2V,9.0V,12V,15V

n See AN-1112for micro SMD considerations Connection Diagrams

SO-8Plastic(M)

(Narrow Body)

00774402

Top View

8-Bump micro SMD

00774424

Top View

(Bump Side Down)

(TO-92)

Plastic Package(Z)

00774403

Bottom View

micro SMD Marking Orientation

00774433

Top View

February2005LM78LXX

Series

3-Terminal

Positive

Regulators ©2005National Semiconductor Corporation DS007744www.national.com

Ordering Information

Package

Order Number Output Voltage

NSC Drawing Supplied As microSMD

LM78L05IBP

5V BPA08AAB Reel of 250LM78L05IBPX 5V BPA08AAB Reel of 3000LM78L09ITP 9V TPA08AAA Reel of 250LM78L09ITPX

9V TPA08AAA Reel of 3000SOIC Narrow

LM78L05ACM 5V M08A Rail of 95LM78L05ACMX 5V M08A Reel of 2500LM78L12ACM 12V M08A Rail of 95LM78L12ACMX 12V M08A Reel of 2500LM78L15ACM 15V M08A Rail of 95LM78L15ACMX

15V M08A Reel of 2500TO-92

LM78L05ACZ 5V Z03A Box of 1800LM78L62ACZ 6.2V Z03A Box of 1800LM78L82ACZ 8.2V Z03A Box of 1800LM78L09ACZ 9V Z03A Box of 1800LM78L12ACZ 12V Z03A Box of 1800LM78L15ACZ

15V

Z03A

Box of 1800

L M 78L X X S e r i e s

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Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distributors for availability and specifications.Power Dissipation (Note 5)Internally Limited

Input Voltage 35V

Storage Temperature −65˚C to +150˚C

ESD Susceptibility (Note 2)

1kV

Operating Junction Temperature SO-8,TO-920˚C to 125˚C micro SMD −40˚C to 85˚C

Soldering Information

Infrared or Convection (20sec.)235˚C

Wave Soldering (10sec.)

260˚C (lead time)

LM78LXX Electrical Characteristics

Limits in standard typeface are for T J =25˚C,Bold typeface

applies over 0˚C to 125˚C for SO-8and TO-92packages,and −40˚C to 85˚C for micro SMD package.Limits are guaran-teed by production testing or correlation techniques using standard Statistical Quality Control (SQC)methods.Unless other-wise specified:I O =40mA,C I =0.33µF,C O =0.1µF.

LM78L05

Unless otherwise specified,V IN =10V Symbol Parameter

Conditions

Min Typ Max Units

V O

Output Voltage

4.85

5.2V

7V ≤V IN ≤20V 1mA ≤I O ≤40mA (Note 3)

4.75

5.25

1mA ≤I O ≤70mA (Note 3)

4.75

5.25∆V O Line Regulation 7V ≤V IN ≤20V 1875mV

8V ≤V IN ≤20V 1054∆V O Load Regulation 1mA ≤I O ≤100mA 20601mA ≤I O ≤40mA

530I Q Quiescent Current 3

5mA ∆I Q Quiescent Current Change 8V ≤V IN ≤20V 1.01mA ≤I O ≤40mA 0.1

V n

Output Noise Voltage f =10Hz to 100kHz (Note 4)40µV Ripple Rejection

f =120Hz

8V ≤V IN ≤16V

47

62dB I PK

Peak Output Current

140

mA Average Output Voltage Tempco

I O =5mA

−0.65mV/˚C V IN (Min)Minimum Value of Input Voltage

Required to Maintain Line Regulation 6.77

V θJA

Thermal Resistance (8-Bump micro SMD)

230.9

˚C/W LM78L62AC

Unless otherwise specified,V IN =12V Symbol Parameter

Conditions

Min Typ Max Units

V O

Output Voltage

5.95

6.2

6.45V

8.5V ≤V IN ≤20V 1mA ≤I O ≤40mA (Note 3)

5.9

6.5

1mA ≤I O ≤70mA (Note 3)

5.9

6.5

LM78LXX Series

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3

LM78LXX Electrical Characteristics Limits in standard typeface are for T J =25˚C,Bold typeface

applies over 0˚C to 125˚C for SO-8and TO-92packages,and −40˚C to 85˚C for micro SMD package.Limits are

guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC)methods.Unless otherwise specified:I O =40mA,C I =0.33µF,C O =0.1µF.(Continued)

LM78L62AC

(Continued)

Unless otherwise specified,V IN =12V

Symbol Parameter

Conditions Min

Typ Max Units

∆V O Line Regulation 8.5V ≤V IN ≤20V 65175mV 9V ≤V IN ≤20V 55125∆V O Load Regulation 1mA ≤I O ≤100mA 13801mA ≤I O ≤40mA

0I Q Quiescent Current 2

5.5mA ∆I Q Quiescent Current Change 8V ≤V IN ≤20V 1.51mA ≤I O ≤40mA 0.1

V n

Output Noise Voltage f =10Hz to 100kHz (Note 4)50µV Ripple Rejection

f =120Hz

10V ≤V IN ≤20V

40

46dB I PK

Peak Output Current

140

mA Average Output Voltage Tempco

I O =5mA

−0.75mV/˚C V IN (Min)

Minimum Value of Input Voltage

Required to Maintain Line Regulation

7.9

V LM78L82AC

Unless otherwise specified,V IN =14V Symbol Parameter

Conditions

Min Typ Max Units

V O

Output Voltage

7.878.2

8.53V

11V ≤V IN ≤23V 1mA ≤I O ≤40mA (Note 3)

7.8

8.6

1mA ≤I O ≤70mA (Note 3)

7.8

8.6∆V O Line Regulation 11V ≤V IN ≤23V 80175mV

12V ≤V IN ≤23V 70125∆V O Load Regulation 1mA ≤I O ≤100mA 15801mA ≤I O ≤40mA

840I Q Quiescent Current 2

5.5mA ∆I Q Quiescent Current Change 12V ≤V IN ≤23V 1.51mA ≤I O ≤40mA 0.1

V n

Output Noise Voltage f =10Hz to 100kHz (Note 4)60µV Ripple Rejection

f =120Hz

12V ≤V IN ≤22V

39

45dB I PK

Peak Output Current

140

mA Average Output Voltage Tempco

I O =5mA

−0.8mV/˚C V IN (Min)

Minimum Value of Input Voltage

Required to Maintain Line Regulation

9.9

V L M 78L X X S e r i e s

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LM78LXX Electrical Characteristics Limits in standard typeface are for T J =25˚C,Bold typeface

applies over 0˚C to 125˚C for SO-8and TO-92packages,and −40˚C to 85˚C for micro SMD package.Limits are

guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC)methods.Unless otherwise specified:I O =40mA,C I =0.33µF,C O =0.1µF.(Continued)

LM78L09AC

Unless otherwise specified,V IN =15V Symbol Parameter

Conditions

Min Typ Max Units

V O

Output Voltage

8.9.0

9.36V

11.5V ≤V IN ≤24V 1mA ≤I O ≤40mA (Note 3)

8.55

9.45

1mA ≤I O ≤70mA (Note 3)

8.55

9.45∆V O Line Regulation 11.5V ≤V IN ≤24V 100200mV

13V ≤V IN ≤24V 90150∆V O Load Regulation 1mA ≤I O ≤100mA 20901mA ≤I O ≤40mA

1045I Q Quiescent Current 2

5.5mA ∆I Q Quiescent Current Change 11.5V ≤V IN ≤24V 1.51mA ≤I O ≤40mA

0.1

V n

Output Noise Voltage 70µV Ripple Rejection

f =120Hz

15V ≤V IN ≤25V

38

44dB I PK

Peak Output Current

140

mA Average Output Voltage Tempco

I O =5mA

−0.9mV/˚C V IN (Min)

Minimum Value of Input Voltage

Required to Maintain Line Regulation

10.7

V LM78L12AC

Unless otherwise specified,V IN =19V Symbol Parameter

Conditions

Min Typ Max Units

V O

Output Voltage

11.512

12.5V

14.5V ≤V IN ≤27V 1mA ≤I O ≤40mA (Note 3)

11.4

12.6

1mA ≤I O ≤70mA (Note 3)

11.4

12.6∆V O Line Regulation 14.5V ≤V IN ≤27V 30180mV

16V ≤V IN ≤27V 20110∆V O Load Regulation 1mA ≤I O ≤100mA 301001mA ≤I O ≤40mA

1050I Q Quiescent Current 3

5mA ∆I Q Quiescent Current Change 16V ≤V IN ≤27V 11mA ≤I O ≤40mA

0.1

V n

Output Noise Voltage 80µV Ripple Rejection

f =120Hz

15V ≤V IN ≤25

40

54dB I PK

Peak Output Current

140

mA Average Output Voltage Tempco

I O =5mA

−1.0

mV/˚C LM78LXX Series

www.national.com

5

LM78LXX Electrical Characteristics Limits in standard typeface are for T J =25˚C,Bold typeface

applies over 0˚C to 125˚C for SO-8and TO-92packages,and −40˚C to 85˚C for micro SMD package.Limits are

guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC)methods.Unless otherwise specified:I O =40mA,C I =0.33µF,C O =0.1µF.(Continued)

LM78L12AC

(Continued)

Unless otherwise specified,V IN =19V

Symbol Parameter

Conditions

Min

Typ Max Units V IN (Min)

Minimum Value of Input Voltage

Required to Maintain Line Regulation

13.7

14.5

V

LM78L15AC

Unless otherwise specified,V IN =23V Symbol Parameter

Conditions

Min Typ Max Units

V O

Output Voltage

14.415.0

15.6V

17.5V ≤V IN ≤30V 1mA ≤I O ≤40mA (Note 3)

14.25

15.75

1mA ≤I O ≤70mA (Note 3)

14.25

15.75∆V O Line Regulation 17.5V ≤V IN ≤30V 37250mV

20V ≤V IN ≤30V 25140∆V O Load Regulation 1mA ≤I O ≤100mA 351501mA ≤I O ≤40mA

1275I Q

Quiescent Current 3

5mA ∆I Q

Quiescent Current Change 20V ≤V IN ≤30V 11mA ≤I O ≤40mA

0.1

V n

Output Noise Voltage 90µV Ripple Rejection

f =120Hz

18.5V ≤V IN ≤28.5V

37

51dB I PK

Peak Output Current

140

mA Average Output Voltage Tempco

I O =5mA

−1.3mV/˚C V IN (Min)

Minimum Value of Input Voltage

Required to Maintain Line Regulation

16.7

17.5

V Note 1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.Electrical specifications do not apply when operating the device outside of its stated operating conditions.

Note 2:Human body model,1.5k Ωin series with 100pF.Note 3:Power dissipation ≤0.75W.

Note 4:Recommended minimum load capacitance of 0.01µF to limit high frequency noise.Note 5:Typical thermal resistance values for the packages are:Z Package:θJC =60˚C/W,=θJA =230˚C/W M Package:θJA =180˚C/W

micro SMD Package:θJA =230.9˚C/W

L M 78L X X S e r i e s

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Typical Performance Characteristics

Maximum Average Power Dissipation(Z Package)Peak Output Current

00774414

00774416 Dropout Voltage Ripple Rejection

0077441700774418 Output Impedance Quiescent Current

0077441900774420LM78LXX Series

Typical Performance Characteristics

(Continued)

Quiescent Current

00774421

Equivalent Circuit

LM78LXX

00774407

L M 78L X X S e r i e s

Typical Applications

Fixed Output Regulator

00774408

*Required if the regulator is located more than 3"from the power supply filter.**See (Note 4)in the electrical characteristics table.

Adjustable Output Regulator

00774409

V OUT =5V +(5V/R1+I Q )R2

5V/R1>3I Q ,load regulation (L r )≈[(R1+R2)/R1](L r of LM78L05)

Current Regulator

00774410

I OUT =(V OUT /R1)+I Q

>I Q =1.5mA over line and load changes

5V,500mA Regulator with Short Circuit Protection

00774411

*Solid tantalum.**Heat sink Q1.

***Optional:Improves ripple rejection and transient response.Load Regulation:0.6%0≤I L ≤250mA pulsed with t ON =50ms.

LM78LXX Series

Typical Applications

(Continued)

±15V,100mA Dual Power Supply

00774412

*Solid tantalum.

Variable Output Regulator 0.5V-18V

00774413

*Solid tantalum.

V OUT =V G +5V,R1=(−V IN /I Q LM78L05)

V OUT =5V (R2/R4)for (R2+R3)=(R4+R5)

A 0.5V output will correspond to (R2/R4)=0.1(R3/R4)=0.9

L M 78L X X S e r i e s

NOTES:UNLESS OTHERWISE SPECIFIED

1.EPOXY COATING

2.63Sn/37Pb EUTECTIC BUMP

3.RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD.

4.PIN A1IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION.REMAINING PINS ARE NUMBERED COUNTERCLOCKWISE.

5.XXX IN DRAWING NUMBER REPRESENTS PACKAGE SIZE VARIATION WHERE X1IS PACKAGE WIDTH,X2IS PACKAGE LENGTH AND X3IS PACKAGE HEIGHT.

6.REFERENCE JEDEC REGISTRATION MO-211,VARIATION BC.

8-Bump micro SMD for LM78L05IBP Only

NS Package Number BPA08AAB

X1=1.285mm X2=1.285mm X3=0.850mm LM78LXX Series

Physical Dimensions

inches (millimeters)unless otherwise noted (Continued)

8-Bump micro SMD for LM78L09ITP Only

NS Package Number TPA08AAA

X1=1.285mm X2=1.285mm X3=0.500mm

L M 78L X X S e r i e s

Physical Dimensions inches(millimeters)unless otherwise noted(Continued)

S.O.Package(M)

NS Package Number M08A

LM78LXX

Series www.national.com

13

Physical Dimensions

inches (millimeters)unless otherwise noted (Continued)

Molded Offset TO-92(Z)NS Package Number Z03A

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