Datasheet LM78L12A Datasheet (Fairchild Semiconductor)

©2002 Fairchild Semiconductor Corporation

www.fairchildsemi.com

Rev. 1.0.4

Features

• Maximum Output Current of 100mA

• Output Voltage of 5V, 8V, 12V, 15V, 18V and 24V

• Thermal Overload Protection

• Short Circuit Current Limiting

• Output Voltage Offered in ±5% Tolerance

Description

The MC78LXXA/LM78LXXA/MC78L05AA series of
fixed voltage monolithic integrated circuit voltage
regulators are suitable for application that required supply
current up to 100mA.

TO-92

1. Output 2. GND 3. Input

8-SOP

1. Output 2. GND 3. GND 4. NC

5. NC 6. GND 7. GND 8. Input

1

1

SOT-89

1

GND

2

3

23

8

Internal Block Diagram

V

I

3

2

GND

V

0

1

I

R

SC

REFERE NCE VOLTAGE

SHORT CIRCUIT

PROTECTION

THERMAL SHUTDOWN

CIRCUIT

+

-

Inpu

t

Outpu

t

MC78LXXA/LM78LXXA/MC78L05AA

3-Terminal 0.1A Positive Voltage Regulator

MC78LXXA/LM78LXXA/MC78L05AA

2

Absolute Maximum Ratings

Electrical Characteristics(MC78L05A/LM78L05A)

(V

I

= 10V, I

O

= 40mA, 0°C

≤ T

J

≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note 1)

Note:

1. The max imum stead y sta te usable output cu rrent and inpu t voltage are very depende nt on the heat sink ing an d/or lead length
of the package. Th e data a bove rep resent p ulse tes t conditi ons with junction temper ature as indicated at the initiatio n of test s.

2. Power dissipat ion P

D

≤ 0.75W.

Parameter Symbol Value Unit

Input Voltage (for V

O

= 5V, 8V)

(for V

O

= 12V to 18V)

(for V

O =

24V)

V

I

30
35
40

V
V
V

Operating Junction Temperature Range T

J

0 ~ +150 °C

Storage Temperature Range T

STG

-65 ~ +150 °C

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ = 25°C4.85.05.2V

Line Regulation (Note1)

∆V

O

TJ = 25°C

7V ≤≤≤≤ V

I

≤≤≤≤ 20V - 8 150 mV

8V ≤≤≤≤ V

I

≤≤≤≤ 20V - 6 100 mV

Load Regulation (Note1)

∆V

O

TJ = 25°C

1mA ≤ I

O

≤ 100mA - 11 60 mV

1mA ≤ I

O

≤ 40mA - 5.0 30 mV

Output Voltage V

O

7V ≤ V

I

≤ 20V 1mA ≤ IO ≤ 40mA - - 5.25 V

7V ≤ V

I

≤ V

MAX

(Note 2)

1mA ≤ I

O

≤ 70mA 4.75 - 5.25 V

Quiescent Current I

Q

TJ = 25°C-2.05.5mA

Quiescent Current
Change

With Line ∆I

Q

8V ≤V

I

≤ 20V - - 1.5 mA

With Load ∆I

Q

1mA ≤ I

O

≤ 40

mA - - 0.1 mA

Output Noise Voltage V

N

TA = 25°C, 10Hz ≤ f ≤ 100kHz - 40 - µV/Vo

Temperature Coefficient of V

O

∆V

O

/∆TIO = 5mA - -0.65 - mV/°C

Ripple Rejection RR f = 120Hz, 8V ≤ V

I

≤ 18V, T

J

= 25°C4180 - dB

Dropout Voltage V

D

TJ = 25°C-1.7-V

MC78LXXA/LM78LXXA/MC78L05AA

3

Electrical Characteristics(MC78L08A)

(Continued)

(V

I

= 14V, I

O

= 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note 1)

Note:

1. The ma ximum ste ady stat e usable output current and input vo ltage ar e very d epende nt on th e heat s inking a nd/or le ad leng th
of the package. The dat a above repres ent pulse test c onditions with junction tempera ture as ind icated at the initi ation of tests.

2. Power dissipat ion P

D

≤ 0.75W.

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ = 25°C 7.7 8.0 8.3 V

Line Regulation (Note1) ∆V

O

TJ = 25°C

10.5V ≤ V

I

≤ 23V - 10 175 mV

11V ≤ V

I

≤ 23V - 8 125 mV

Load Regulation (Note1) ∆V

O

TJ = 25°C1mA ≤ I

O

≤ 100mA - 15 80 mV

1mA ≤ I

O

≤ 40mA - 8.0 40 mV

Output Voltage V

O

10.5V ≤ V

I

≤ 23V 1mA ≤ IO ≤ 40mA 7.6 - 8.4 V

10.5V ≤ V

I

≤

V

MAX

(Note 2)

1mA ≤ I

O

≤ 70mA 7.6 - 8.4 V

Quiescent Current I

Q

TJ = 25°C-2.05.5mA

Quiescent Current
Change

With Line ∆I

Q

11V ≤ V

I

≤ 23V - - 1.5 mA

With Load ∆I

Q

1mA ≤ I

O

≤ 40mA - - 0.1 mA

Output Noise Voltage V

N

TA = 25°C, 10Hz ≤ f ≤100kHz - 60 - µV/Vo

Temperature Coefficient of V

O

∆V

O

/∆TIO = 5mA - -0.8 - mV/

°C

Ripple Rejection RR f = 120Hz, 11V ≤ V

I

≤ 21V, T

J

= 25°C39 70 - dB

Dropout Voltage V

D

TJ = 25°C-1.7-V

MC78LXXA/LM78LXXA/MC78L05AA

4

Electrical Characteristics(MC78L12A/LM78L12A)

(Continued)

(V

I

= 19V, I

O

= 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1)

Note:

1. The ma ximum ste ady stat e usable output current and input vo ltage ar e very d epende nt on th e heat s inking a nd/or le ad leng th
of the package. The dat a above repres ent pulse test c onditions with junction tempera ture as ind icated at the initi ation of tests.

2. Power dissipat ion P

D

≤ 0.75W.

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ = 25°C 11.5 12 12.5 V

Line Regulation (Note1) ∆V

O

TJ = 25°C

14.5V ≤ V

I

≤ 27V - 20 250 mV

16V ≤ V

I

≤ 27V - 15 200 mV

Load Regulation (Note1) ∆V

O

TJ = 25°C

1mA ≤ I

O

≤ 100mA - 20 100 mV

1mA ≤ I

O

≤ 40mA - 10 50 mV

Output Voltage V

O

14.5V ≤ V

I

≤ 27V 1mA ≤ IO ≤ 40mA 11.4 - 12.6 V

14.5V ≤ V

I

≤

V

MAX

(Note 2)

1mA ≤ I

O

≤ 70mA 11.4 - 12.6 V

Quiescent Current I

Q

TJ = 25°C-2.16.0mA

Quiescent Current
Change

With Line ∆I

Q

16V ≤ V

I

≤ 27V - - 1.5 mA

With Load ∆I

Q

1mA ≤ I

O

≤ 40mA - - 0.1 mA

Output Noise Voltage V

N

TA = 25°C, 10Hz ≤ f ≤ 100kHz - 80 - µV/Vo

Temperature Coefficient of V

O

∆V

O

/∆TIO = 5mA - -1.0 - mV/°C

Ripple Rejection RR f = 120Hz, 15V ≤ V

I

≤ 25V, T

J

= 25°C37 65 - dB

Dropout Voltage V

D

TJ = 25°C-1.7-V

MC78LXXA/LM78LXXA/MC78L05AA

5

Electrical Characteristics(MC78L15A)

(Continued)

(V

I

= 23V, I

O

= 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1)

Note:

1. The maximum st ea dy state usable output cur re nt a nd input voltage are very dependent on the heat sinking and/or lead le ngth
of the package. Th e data a bove rep resent p ulse tes t conditi ons with junction temper ature as indicated at the initiatio n of test s.

2. Power dissipation P

D

≤ 0.75W.

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ = 25°C 14.4 15 15.6 V

Line Regulation (Note1) ∆V

O

TJ = 25°C

17.5V ≤ V

I

≤ 30V - 25 300 mV

20V ≤ V

I

≤ 30V - 20 250 mV

Load Regulation (Note1) ∆V

O

TJ = 25°C

1mA ≤ I

O

≤ 100mA - 25 150 mV

1mA ≤ I

O

≤ 40mA - 12 75 mV

Output Voltage V

O

17.5V ≤ V

I

≤ 30V 1mA ≤ IO ≤ 40mA 14.25 - 15.75 V

17.5V ≤ V

I

≤

V

MAX

(Note 2)

1mA ≤ I

O

≤ 70mA 14.25 - 15.75 V

Quiescent Current I

Q

TJ = 25°C-2.16.0mA

Quiescent Current
Change

With Line ∆I

Q

20V ≤ V

I

≤ 30V - - 1.5 mA

With Load ∆I

Q

1mA ≤ I

O

≤ 40mA - - 0.1 mA

Output Noise Voltage V

N

TA = 25°C, 10Hz ≤ f ≤ 100kHz - 90 - µV/Vo

Temperature Coefficient of V

O

∆V

O

/∆TIO = 5mA - -1.3 - mV/°C

Ripple Rejection RR f = 120Hz, 18.5V≤V

I

≤28.5V, T

J

= 25°C34 60 - dB

Dropout Voltage V

D

TJ = 25°C-1.7-V

MC78LXXA/LM78LXXA/MC78L05AA

6

Electrical Characteristics(MC78L18A)

(Continued)

(V

I

= 27V, I

O

= 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note 1)

Note:

1. The maximum stead y state usable ou tput cu rre nt and inp ut volta ge are ve ry de pende nt on the heat sinking and/or le ad le ngth
of the package. The dat a above repres ent pulse test c onditions with junction tempera ture as ind icated at the initi ation of test s.

2. Power dissipation P

D

≤ 0.75W.

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ = 25°C 17.3 18 18.7 V

Line Regulation (Note1) ∆V

O

TJ = 25°C

21V ≤ V

I

≤ 33V - 145 300 mV

22V ≤ V

I

≤ 33V - 135 250 mV

Load Regulation (Note1) ∆V

O

TJ = 25°C

1mA ≤ I

O

≤100mA - 30 170 mV

1mA ≤ I

O

≤ 40mA - 15 85 mV

Output Voltage V

O

21V ≤ V

I

≤ 33V 1mA ≤ IO ≤ 40mA 17.1 - 18.9 V

21V ≤ V

I

≤

V

MAX

(Note 2)

1mA ≤ I

O

≤ 70mA 17.1 - 18.9 V

Quiescent Current I

Q

TJ = 25°C-2.26.0mA

Quiescent Current
Change

With Line ∆I

Q

21V ≤ V

I

≤ 33V - - 1.5 mA

With Load ∆I

Q

1mA ≤ I

O

≤ 40mA - - 0.1 mA

Output Noise Voltage V

N

TA = 25°C, 10Hz ≤ f ≤ 100kHz - 150 - µV/Vo

Temperature Coefficient of V

O

∆V

O

/∆TIO = 5mA - -1.8 - mV/°C

Ripple Rejection RR f = 120Hz, 23V ≤ V

I

≤ 33V, T

J

= 25°C34 48 - dB

Dropout Voltage V

D

TJ = 25°C-1.7-V

MC78LXXA/LM78LXXA/MC78L05AA

7

Electrical Characteristics(MC78L24A)

(Continued)

(V

I

= 33V, I

O

= 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note 1)

Note:

1. The max imum stead y sta te usable output cu rrent and inpu t voltage are very depende nt on the heat sink ing an d/or lead length
of the package. Th e data a bove rep resent p ulse tes t conditi ons with junction temper ature as indicated at the initiatio n of test s.

2. Power dissipat ion P

D

≤ 0.75W.

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ = 25°C232425V

Line Regulation (Note1)

∆V

O

TJ = 25°C

27V ≤ V

I

≤ 38V - 160 300 mV

28V ≤ V

I

≤ 38V - 150 250 mV

Load Regulation (Note1) ∆V

O

TJ = 25°C

1mA ≤ I

O

≤ 100mA - 40 200 mV

1mA ≤ I

O

≤ 40mA - 20 100 mV

Output Voltage V

O

27V ≤ V

I

≤ 38V 1mA ≤ IO ≤ 40mA 22.8 - 25.2 V

27V ≤ V

I

≤

V

MAX

(Note 2)

1mA ≤ I

O

≤ 70mA 22.8 - 25.2 V

Quiescent Current I

Q

TJ = 25°C-2.26.0mA

Quiescent Current
Change

With Line ∆I

Q

28V ≤ V

I

≤ 38V - - 1.5 mA

With Load ∆I

Q

1mA ≤ I

O

≤ 40mA - - 0.1 mA

Output Noise Voltage V

N

TA = 25°C, 10Hz ≤ f ≤ 100kHz - 200 - µV/Vo

Temperature Coefficient of V

O

∆V

O

/∆TIO = 5mA - -2.0 - mV/°C

Ripple Rejection RR f = 120Hz, 28V ≤ V

I

≤ 38V, T

J

= 25°C34 45 - dB

Dropout Voltage V

D

TJ = 25°C-1.7-V

MC78LXXA/LM78LXXA/MC78L05AA

8

Absolute Maximum Ratings

Electrical Characteristics(MC78L05AA)

(Continued)

(V

I

= 10V, I

O

= 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note 1)

Note:

1. The maximum stead y state usable ou tput cu rre nt and inp ut volta ge are ve ry de pende nt on the heat sinking and/or le ad le ngth
of the package. The dat a above repres ent pulse test c onditions with junction tempera ture as ind icated at the initi ation of test s.

2. Power dissipation P

D

≤ 0.75W.

Parameter Symbol Value Unit

Input Voltage (for V

O

= 5V, 8V)

(for V

O

= 12V to 18V)

(for V

O =

24V)

V

I

30
35
40

V
V
V

Operating Junction Temperature Range T

J

0 ~ +150 °C

Storage Temperature Range T

STG

-65 ~ +150 °C

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ = 25°C4.95.05.1V

Line Regulation (Note1)

∆V

O

TJ = 25°C

7V ≤≤≤≤ V

I

≤≤≤≤ 20V - 8 150 mV

8V ≤≤≤≤ V

I

≤≤≤≤ 20V - 6 100 mV

Load Regulation (Note1)

∆V

O

TJ = 25°C

1mA ≤ I

O

≤ 100mA - 11 50 mV

1mA ≤ I

O

≤ 40mA - 5.0 25 mV

Output Voltage V

O

7V ≤V

I

≤20V 1mA ≤ IO ≤ 40mA - - 5.15 V

7V ≤V

I

≤ V

MAX

(Note 2)

1mA ≤ I

O

≤ 70mA 4.75 - 5.15 V

Quiescent Current I

Q

TJ = 25°C-2.05.5mA

Quiescent Current
Change

With Line ∆I

Q

8V ≤V

I

≤ 20V - - 1.5 mA

With Load ∆I

Q

1mA ≤ I

O

≤ 40

mA - - 0.1 mA

Output Noise Voltage V

N

TA = 25°C, 10Hz ≤ f ≤ 100kHz - 40 - µV/Vo

Temperature Coefficient of V

O

∆V

O

/∆TIO = 5mA - -0.65 - mV/°C

Ripple Rejection RR f = 120Hz, 8V ≤ V

I

≤ 18V, T

J

= 25°C4180 - dB

Dropout Voltage V

D

TJ = 25°C-1.7-V

MC78LXXA/LM78LXXA/MC78L05AA

9

Typical Application

’( )’ : 8SOP Type

Notes:

1. To specify an output voltage, substitute voltage value for “XX”.

2. Bypass Capacitors are recommend for optimum stability and transient response and should be located as close as possible
to the regulator

KA78LXXA
NOTE 1

INPUT

OUTPUT

1(1)

2(2,3,6,7)

3(8)

C1

0.33µF
NOTE 2

0. 1
NOTE 2

µ

F

MC78LXXA/LM78LXXA

MC78LXXA/LM78LXXA/MC78L05AA

10

Mechanical Dimensions

Package

Dimensions in millimeters

0.46

±0.10

1.27TYP

(R2.29)

3.86MAX

[1.27

±0.20

]

1.27TYP

[1.27

±0.20

]

3.60

±0.20

14.47

±0.40

1.02

±0.10

(0.25)

4.58

±0.20

4.58

+0.25
–0.15

0.38

+0.10
–0.05

0.38

+0.10

–0.05

TO-92

MC78LXXA/LM78LXXA/MC78L05AA

11

Mechanical Dimensions

(Continued)

Package

Dimensions in millimeters

4.92 ±0.20

0.194 ±0.008

0.41 ±0.10

0.016 ±0.004

1.27

0.050

5.72

0.225

1.55 ±0.20

0.061 ±0.008

0.1~0.25

0.004~0.001

6.00 ±0.30

0.236 ±0.012

3.95 ±0.20

0.156 ±0.008

0.50 ±0.20

0.020 ±0.008

5.13

0.202

MAX

#1

#4

#5

0~8°

#8

0.56

0.022

()

1.80

0.071

MAX0.10

MAX0.004

MAX

MIN

+

0.10

-0.05

0.15

+

0.004

-0.002

0.006

8-SOP

MC78LXXA/LM78LXXA/MC78L05AA

12

Mechanical Dimensions

(Continued)

Package

Dimensions in millimeters

SOT-89

0.40

±0.10

2.50

±0.20

(0.50)

(0.40)

4.10

±0.20

0.40

+0.10
–0.05

0.50

±0.10

1.65

±0.10

4.50

±0.20

1.50

±0.20

C0.2

1.50 TYP 1.50 TYP

(1.10)

MC78LXXA/LM78LXXA/MC78L05AA

13

Ordering Information

Product Number Package Output Voltage Tolerance Operating Temperature

LM78L05ACZ

TO-92 5% 0 ~ +125°C

LM78L12ACZ

Product Number Package Output Voltage Tolerance Operating Temperature

MC78L05ACP

TO-92

5%

0 ~ +125°C

MC78L08ACP
MC78L12ACP
MC78L15ACP
MC78L18ACP
MC78L24ACP
MC78L05ACD

8-SOPMC78L08ACD
MC78L12ACD
MC78L05ACH

SOT-89MC78L08ACH

MC78L12ACH

MC78L05AACP TO-92 2%

MC78LXXA/LM78LXXA/MC78L05AA

7/2/02 0.0m 001

Stock#DSxxxxxxxx

 2002 Fairchild Semiconductor Corporation

LIFE SUPPORT POL I CY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein :

1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.

2. A critical component in any component of a life support
device or sys tem whose failure to perform can be
reasonably expec ted to cause the failur e of the life support
device or system, or to affect its safety or effec tiveness.

www.fairchildsemi.com

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREI N TO IMPROVE RELIABILITY, FUNCTION OR DES IGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RI GHTS OF OTHERS.