Datasheet MC7824CT, MC7818, MC7824ACT, MC7815CT, MC7815ACT Datasheet (Fairchild Semiconductor)

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MC78XX/LM78XX/MC78XXA

3-Terminal 1A Positive Voltage Regulator

Features

• Output Current up to 1A

• Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V

• Thermal Overload Protection

• Short Circuit Protection

• Output Transistor Safe Operating Area Protection

Description

The MC78XX/LM78XX/MC78XXA series of three
terminal positive regulators are available in the
TO-220/D-PAK package and with several fixed output
voltages, making them useful in a wide range of
applications. Each type employs internal current limiting,
thermal shut down and safe operating area protection,
making it essentially indestructible. If adequate heat sinking
is provided, they can deliver over 1A output current.
Although designed primarily as fixed voltage regulators,
these devices can be used with external components to
obtain adjustable voltages and currents.

TO-220

1

D-PAK

1

1. Input 2. GND 3. Output

Internal Block Digram

©2001 Fairchild Semiconductor Corporation

Rev. 1.0.1

MC78XX/LM78XX/MC78XXA

Absolute Maximum Ratings

Parameter Symbol Value Unit

Input Voltage (for V
(for V

= 24V)

O

= 5V to 18V)

O

Thermal Resistance Junction-Cases (TO-220) R
Thermal Resistance Junction-Air (TO-220) R
Operating Temperature Range T
Storage Temperature Range T

V

I

V

I

θJC
θJA

OPR

STG

35
40

5

65

0 ~ +125

-65 ~ +150

o

C/W

o

C/W

o
o

V
V

C
C

Electrical Characteristics (MC7805/LM7805)

(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI = 10V, CI= 0.33µF, CO= 0.1µF, unless otherwise specified)

Parameter Symbol Conditions

TJ =+25 oC 4.8 5.0 5.2

Output Voltage V

Line Regulation (Note1) Regline T

O

5.0mA ≤ Io ≤ 1.0A, P
V

= 7V to 20V 4.75 5.0 5.25

I

=+25 oC

J

Load Regulation (Note1) Regload TJ=+25 oC

Quiescent Current I

Q

Quiescent Current Change ∆I
Output Voltage Drift ∆V

O

Output Noise Voltage V
Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

DropIO

O
SC
PK

TJ =+25 oC-5.08.0mA
IO = 5mA to 1.0A - 0.03 0.5

Q

= 7V to 25V - 0.3 1.3

V

I

/∆TIO= 5mA - -0.8 - mV/ oC

f = 10Hz to 100KHz, TA=+25 oC-42-µV/Vo

N

f = 120Hz
V

= 8V to 18V

O

= 1A, TJ =+25 oC-2-V
f = 1KHz - 15 - mΩ
VI = 35V, TA =+25 oC - 230 - m A
TJ =+25 oC-2.2-A

MC7805/LM7805

Min. Typ. Max.

≤ 15W

O

V

= 7V to 25V - 4.0 100

O

= 8V to 12V - 1.6 50

V

I

I

= 5.0mA to1.5A - 9 100

O

=250mA to

I

O

750mA

-450

62 73 - dB

Unit

V

mV

mV

mA

Note:

1. Load and line regulation are specified at constant junction temperature. Changes in V
into account separately. Pulse testing with low duty is used.

2

due to heatin g effe cts mus t be tak en

o

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7806)

(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =11V, CI= 0.33µF, CO= 0.1µF, unless otherwise specified)

Parameter Symbol Conditions

Output Voltage V

O

Line Regulation (Note1) Regline T

Load Regulation (Note1) Regload T
Quiescent Current I
Quiescent Current Change ∆I
Output Voltage Drift ∆V

Output Noise Voltage V

Q

Q

/∆TIO = 5mA - -0.8 - mV/ oC

O

N

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

DropIO

O
SC
PK

MC7806

Min. Typ. Max.

Unit

TJ =+25 oC 5.75 6.0 6.25

5.0mA ≤ I
V

= 8.0V to 21V 5.7 6.0 6.3

I

=+25 oC

J

=+25 oC

J

≤ 1.0A, PO≤ 15W

O

= 8V to 25V - 5 120

V

I

V

= 9V to 13V - 1.5 60

I

I

=5mA to 1.5A - 9 120

O

=250mA to750A - 3 60

I

O

V

mV

mV

TJ =+25 oC-5.08.0mA
IO = 5mA to 1A - - 0.5

= 8V to 25V - - 1.3

V

I

mA

f = 10Hz to 100KHz, TA =+25 oC-45-µV/Vo
f = 120Hz

V

= 9V to 19V

I

59 75 - dB

= 1A, TJ =+25 oC-2-V
f = 1KHz - 19 - mΩ
VI= 35V, TA=+25 oC - 250 - mA
TJ =+25 oC-2.2-A

Note:

1. Load and line regulation are specified at constant junction temperature. Changes in V
into account separately. Pulse testing with low duty is used.

due to heating eff e cts mus t be t aken

O

3

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7808)

(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =14V, CI= 0.33µF, CO= 0.1µF, unless otherwise specified)

Parameter Symbol Conditions

TJ =+25 oC 7.7 8.0 8.3

Output Voltage V

Line Regulation (Note1) Regline T

Load Regulation (Note1) Regload T
Quiescent Current I
Quiescent Current Change ∆I
Output Voltage Drift ∆V

Output Noise Voltage V

O

5.0mA ≤ I
V

= 10.5V to 23V 7.6 8.0 8.4

I

=+25 oC

J

=+25 oC

J

Q

TJ =+25 oC-5.08.0mA

O

IO = 5mA to 1.0A - 0.05 0.5

Q

/∆TIO = 5mA - -0.8 - mV/ oC

O

N

= 10.5A to 25V - 0.5 1.0

V

I

f = 10Hz to 100KHz, TA =+25 oC-52-µV/Vo
Ripple Rejection RR f = 120Hz, V
Dropout Voltage V
Output Resistance r
Short Circuit Current I
Peak Current I

DropIO

O

SC

PK

= 1A, TJ=+25 oC-2-V
f = 1KHz - 17 - mΩ
VI= 35V, TA =+25 oC - 230 - mA
TJ =+25 oC-2.2-A

MC7808

Min. Typ. Max.

Unit

≤ 1.0A, PO≤ 15W

= 10.5V to 25V - 5.0 160

V

I

V

= 11.5V to 17V - 2.0 80

I

I

= 5.0mA to 1.5A - 10 160

O

= 250mA to 750mA - 5.0 80

I

O

= 11.5V to 21.5V 56 73 - dB

I

V

mV

mV

mA

Note:

1. Load and line regulation are specified at constant junction temperature. Changes in V
into account separately. Pulse testing with low duty is used.

due to heating e ffe cts mus t be t ak en

O

4

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7809)

(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =15V, CI= 0.33µF, CO= 0.1µF, unless otherwise specified)

Parameter Symbol Conditions

Output Voltage V

O

Line Regulation (Note1) Regline T

Load Regulation (Note1) Regload T
Quiescent Current I
Quiescent Current Change ∆I
Output Voltage Drift ∆V

Output Noise Voltage V
Ripple Rejection

Dropout Voltage V
Output Resistance r
Short Circuit Current I
Peak Current I

Q

Q

/∆TIO = 5mA - -1 - mV/

O

N

RR

DropIO

O
SC
PK

MC7809

Min. Typ. Max.

Unit

TJ =+25°C 8.65 9 9.35

5.0mA≤ I
V

= 11.5V to 24V 8.6 9 9.4

I

=+25°C

J

=+25°C

J

≤1.0A, PO ≤15W

O

= 11.5V to 25V - 6 180

V

I

V

= 12V to 17V - 2 90

I

I

= 5mA to 1.5A - 12 180

O

= 250mA to 750mA - 4 90

I

O

V

mV

mV

TJ=+25°C-5.08.0mA
IO = 5mA to 1.0A - - 0.5
V

= 11.5V to 26V - - 1.3

I

f = 10Hz to 100KHz, TA =+25
f = 120Hz

V

= 13V to 23V

I

°C-58-µV/Vo

56 71 - dB

mA

°C

= 1A, TJ=+25°C-2-V
f = 1KHz - 17 - mΩ
VI= 35V, TA =+25°C - 250 - mA
TJ= +25°C-2.2-A

Note:

1. Load and line regulation are specified at constant junction temperature. Changes in V
into account separately. Pulse testing with low duty is used.

due to heating eff e cts mus t be t aken

O

5

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7810)

(Refer to test circuit ,0°C< TJ < 125°C, IO = 500mA, VI =16V, CI= 0.33µF, CO=0.1µF, unless otherwise specified)

Parameter Symbol Conditions

Output Voltage V

O

Line Regulation (Note1) Regline T

Load Regulation (Note1) Regload T
Quiescent Current I
Quiescent Current Change ∆I
Output Voltage Drift ∆V

Output Noise Voltage V

Q

Q

/∆TIO = 5mA - -1 - mV/°C

O

N

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

DropIO

O
SC
PK

MC7810

Min. Typ. Max.

TJ =+25

5.0mA ≤ I
V

I

J

J

°C 9.6 10 10.4

≤1.0A, PO ≤15W

O

= 12.5V to 25V 9.5 10 10.5

= 12.5V to 25V - 10 200

V

=+25°C

=+25°C

I

V

= 13V to 25V - 3 100

I

I

= 5mA to 1.5A - 12 200

O

= 250mA to 750mA - 4 400

I

O

Unit

V

mV

mV

TJ =+25°C-5.18.0mA
IO = 5mA to 1.0A - - 0.5

= 12.5V to 29V - - 1.0

V

I

f = 10Hz to 100KHz, TA =+25
f = 120Hz

V

= 13V to 23V

I

°C-58-µV/Vo

56 71 - dB

mA

= 1A, TJ=+25 °C-2-V
f = 1KHz - 17 - mΩ
VI = 35V, TA=+25
TJ =+25

°C-2.2-A

°C - 250 - mA

Note:

1. Load and line regulation are specified at constant junction temperature. Changes in V
into account separately. Pulse testing with low duty is used.

due to heating e ffe cts mus t be t ak en

O

6

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7812)

(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =19V, CI= 0.33µF, CO=0.1µF, unless otherwise specified)

Parameter Symbol Conditions

Output Voltage V

O

Line Regulation (Note1) Regline T

Load Regulation (Note1) Regload T
Quiescent Current I
Quiescent Current Change ∆I
Output Voltage Drift ∆V

Output Noise Voltage V

Q

Q

/∆TIO = 5mA - -1 - mV/ oC

O

N

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

DropIO

O
SC
PK

MC7812

Min. Typ. Max.

Unit

TJ =+25 oC 11.5 12 12.5

5.0mA ≤ I
V

= 14.5V to 27V 11.4 12 12.6

I

=+25 oC

J

=+25 oC

J

≤1.0A, PO≤15W

O

= 14.5V to 30V - 10 240

V

I

V

= 16V to 22V - 3.0 120

I

I

= 5mA to 1.5A - 11 240

O

= 250mA to 750mA - 5.0 120

I

O

V

mV

mV

TJ =+25 oC-5.18.0mA
IO = 5mA to 1.0A - 0.1 0.5

= 14.5V to 30V - 0.5 1.0

V

I

mA

f = 10Hz to 100KHz, TA =+25 oC-76-µV/Vo
f = 120Hz

V

= 15V to 25V

I

55 71 - dB

= 1A, TJ=+25 oC-2-V
f = 1KHz - 18 - mΩ
VI = 35V, TA=+25 oC - 230 - mA
TJ = +25 oC-2.2-A

Note:

1. Load and line regulation are specified at constant junction temperature. Changes in V
into account separately. Pulse testing with low duty is used.

due to heating e ffe cts mus t be t ak en

O

7

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7815)

(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =23V, CI= 0.33µF, CO=0.1µF, unless otherwise specified)

Parameter Symbol Conditions

Output Voltage V

O

Line Regulation (Note1) Regline T

Load Regulation (Note1) Regload T

Quiescent Current I
Quiescent Current Change ∆I
Output Voltage Drift ∆V

Output Noise Voltage V

Q

Q

/∆TIO = 5mA - -1 - mV/ oC

O

N

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

Drop

O
SC
PK

MC7815

Min. Typ. Max.

Unit

TJ =+25 oC 14.4 15 15.6

5.0mA ≤ I
V

= 17.5V to 30V 14.25 15 15.75

I

=+25 oC

J

=+25 oC

J

≤ 1.0A, PO ≤ 15W

O

= 17.5V to 30V - 11 300

V

I

V

= 20V to 26V - 3 150

I

= 5mA to 1.5A - 12 300

I

O

I

= 250mA to

O

750mA

- 4 150

V

mV

mV

TJ =+25 oC-5.28.0mA
IO = 5mA to 1.0A - - 0.5

= 17.5V to 30V - - 1.0

V

I

mA

f = 10Hz to 100KHz, TA =+25 oC-90-µV/Vo
f = 120Hz

V

= 18.5V to 28.5V

I

54 70 - dB

IO = 1A, TJ=+25 oC-2-V
f = 1KHz - 19 - mΩ
VI = 35V, TA=+25 oC - 250 - mA
TJ =+25 oC-2.2-A

Note:

1. Load and line regulation are specified at constant junction temperature. Changes in V
into account separately. Pulse testing with low duty is used.

due to heating eff e cts mus t be t aken

O

8

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7818)

(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =27V, CI= 0.33µF, CO=0.1µF, unless otherwise specified)

Parameter Symbol Conditions

Output Voltage V

O

Line Regulation (Note1) Regline T

Load Regulation (Note1) Regload T
Quiescent Current I
Quiescent Current Change ∆I
Output Voltage Drift ∆V

Output Noise Voltage V

Q

Q

/∆TIO = 5mA - -1 - mV/ oC

O

N

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

DropIO

O
SC
PK

MC7818

Min. Typ. Max.

Unit

TJ =+25 oC 17.3 18 18.7

5.0mA ≤ I
V

= 21V to 33V 17.1 18 18.9

I

=+25 oC

J

=+25 oC

J

≤1.0A, PO ≤15W

O

= 21V to 33V - 15 360

V

I

V

= 24V to 30V - 5 180

I

I

= 5mA to 1.5A - 15 360

O

= 250mA to 750mA - 5.0 180

I

O

V

mV

mV

TJ =+25 oC-5.28.0mA
IO = 5mA to 1.0A - - 0.5

= 21V to 33V - - 1

V

I

mA

f = 10Hz to 100KHz, TA =+25 oC-110-µV/Vo
f = 120Hz

V

= 22V to 32V

I

53 69 - dB

= 1A, TJ=+25 oC - 2 - V
f = 1KHz - 22 - mΩ
VI = 35V, TA=+25 oC - 250 - mA
TJ =+25 oC-2.2-A

Note:

1. Load and line regulation are specified at constant junction temperature. Changes in V
into account separately. Pulse testing with low duty is used.

due to heating e ffe cts mus t be t ak en

O

9

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7824)

(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =33V, CI= 0.33µF, CO=0.1µF, unless otherwise specified)

Parameter Symbol Conditions

Output Voltage V

O

Line Regulation (Note1) Regline T

Load Regulation (Note1) Regload T
Quiescent Current I
Quiescent Current Change ∆I
Output Voltage Drift ∆V

Output Noise Voltage V

Q

Q

/∆TIO = 5mA - -1.5 - mV/ oC

O

N

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

DropIO

O
SC
PK

MC7824

Min. Typ. Max.

Unit

TJ =+25 oC232425

5.0mA ≤ I
V

= 27V to 38V 22.8 24 25.25

I

=+25 oC

J

=+25 oC

J

≤ 1.0A, PO ≤ 15W

O

= 27V to 38V - 17 480

V

I

V

= 30V to 36V - 6 240

I

I

= 5mA to 1.5A - 15 480

O

= 250mA to 750mA - 5.0 240

I

O

V

mV

mV

TJ =+25 oC-5.28.0mA
IO = 5mA to 1.0A - 0.1 0.5

= 27V to 38V - 0.5 1

V

I

mA

f = 10Hz to 100KHz, TA =+25 oC-60-µV/Vo
f = 120Hz

V

= 28V to 38V

I

50 67 - dB

= 1A, TJ=+25 oC-2-V
f = 1KHz - 28 - mΩ
VI = 35V, TA=+25 oC - 230 - mA
TJ =+25 oC-2.2-A

Note:

1. Load and line regulation are specified at constant junction temperature. Changes in V
into account separately. Pulse testing with low duty is used.

due to heating effects must be taken

O

10

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7805A)

(Refer to the test circuits. 0°C < TJ < 125°C, Io =1A, V

Parameter Symbol Conditions Min. Typ. Max. Unit

TJ =+25 oC4.955.1

Output Voltage V

Line Regulation (Note1)

Load Regulation (Note1)

Quiescent Current I

O

Regline

Regload

Q

= 5mA to 1A, P

I

O

V

= 7.5V to 20V

I

= 7.5V to 25V

V

I

I

= 500mA

O

= 8V to 12V - 3 50

V

I

=+25 oC

T

J

T

=+25 oC

J

I

= 5mA to 1.5A

O

= 5mA to 1A - 9 100

I

O

= 250mA to 750mA - 4 50

I

O

TJ =+25 oC-5.06mA
IO = 5mA to 1A - - 0.5

Quiescent Current
Change

∆I

Q

= 8 V to 25V, IO = 500mA - - 0.8

I

V

= 7.5V to 20V, TJ =+25 oC--0.8

I

Output Voltage Drift ∆V/∆T Io = 5mA - -0.8 - mV/
Output Noise Voltage V

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

Drop

O
SC
PK

N

f = 10Hz to 100KHz
T

=+25 oC

A

f = 120Hz, I
V

= 8V to 18V

I

IO = 1A, TJ =+25 oC-2-V
f = 1KHz - 17 - mΩ
VI= 35V, TA =+25 oC - 250 - mA
TJ= +25 oC-2.2-A

= 10V, C I=0.33µF, C O=0.1µF, unless otherwise specified)

I

≤ 15W

O

4.8 5 5.2

-550

V

= 7.3V to 20V - 5 50

I

= 8V to 12V - 1.5 25

V

I

- 9 100

-10-µV/Vo

= 500mA

O

-68- dB

V

mV

mV

mAV

o

C

Note:

1. Load and line regulation are specified at constant junction temperature. Change in V
into account separately. Pulse testing with low duty is used.

11

due to heating effects must be taken

O

Electrical Characteristics (MC7806A)

(Refer to the test circuits. 0°C < TJ < 125°C, Io =1A, V

Parameter Symbol Conditions Min. Typ. Max. Unit

TJ =+25 oC 5.58 6 6.12

Output Voltage V

Line Regulation (Note1)

Load Regulation (Note1)

Quiescent Current I

Quiescent Current Change ∆I

Output Voltage Drift ∆V/∆TI
Output Noise Voltage V

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

O

Regline

Regload

Q

Q

N

Drop

O
SC
PK

= 5mA to 1A, P

I

O

V

= 8.6V to 21V

I

= 8.6V to 25V

V

I

I

= 500mA

O

= 9V to 13V - 3 60

V

I

=+25 oC

T

J

T

=+25 oC

J

I

= 5mA to 1.5A

O

= 5mA to 1A - 4 100

I

O

= 250mA to 750mA - 5.0 50

I

O

TJ =+25 oC-4.36mA
IO = 5mA to 1A - - 0.5

= 9V to 25V, IO = 500mA - - 0.8

I

V

= 8.5V to 21V, TJ =+25 oC--0.8

I

= 5mA - -0.8 - mV/ oC

O

f = 10Hz to 100KHz
T

=+25 oC

A

f = 120Hz, I
V

= 9V to 19V

I

IO = 1A, TJ =+25 oC-2-V
f = 1KHz - 17 - mΩ
VI= 35V, TA =+25 oC - 250 - mA
TJ=+25 oC-2.2-A

MC78XX/LM78XX/MC78XXA

=11V, C I=0.33µF, C O=0.1µF, unless otherwise specified)

I

≤ 15W

O

5.76 6 6.24

-560
mV

V

= 8.3V to 21V - 5 60

I

= 9V to 13V - 1.5 30

V

I

- 9 100
mV

mAV

-10-µV/V o

= 500mA

O

-65- dB

V

Note:

1. Load an d lin e re gul ation ar e sp ecifi ed at con sta nt ju nct ion t empe rat ure . Chan ge i n V
into account separately. Pulse testing with low duty is used.

due to heating effects must be taken

O

12

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7808A)

(Refer to the test circuits. 0°C < TJ < 125°C, Io =1A, V

Parameter Symbol Conditions Min. Typ. Max. Unit

TJ =+25 oC 7.84 8 8.16

Output Voltage V

Line Regulation (Note1)

Load Regulation (Note1)

Quiescent Current I

Quiescent Current Change ∆I

Output Voltage Drift ∆V/∆TI
Output Noise Voltage V

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

O

Regline

Regload

Q

Q

N

Drop

O
SC
PK

= 5mA to 1A, P

I

O

V

= 10.6V to 23V

I

= 10.6V to 25V

V

I

I

= 500mA

O

= 11V to 17V - 3 80

V

I

=+25 oC

T

J

=+25 oC

T

J

I

= 5mA to 1.5A

O

= 5mA to 1A - 12 100

I

O

I

= 250mA to 750mA - 5 50

O

TJ =+25 oC-5.06mA
IO = 5mA to 1A - - 0.5

= 11V to 25V, IO = 500mA - - 0.8

I

= 10.6V to 23V, TJ =+25 oC--0.8

V

I

= 5mA - -0.8 - mV/ oC

O

f = 10Hz to 100KHz
T

=+25 oC

A

f = 120Hz, I
V

= 11.5V to 21.5V

I

IO = 1A, TJ =+25 oC-2-V
f = 1KHz - 18 - mΩ
VI= 35V, TA =+25 oC - 250 - mA
TJ=+25 oC-2.2-A

= 14V, C I=0.33µF, C O=0.1µF, unless otherwise specified)

I

≤15W

O

7.7 8 8.3

-680
mV

V

= 10.4V to 23V - 6 80

I

V

= 11V to 17V - 2 40

I

- 12 100
mV

mAV

-10-µV/Vo

= 500mA

O

-62- dB

V

Note:

1. Load and line regulation are specified at constant junction temperature. Change in V
into account separately. Pulse testing with low duty is used.

13

due to heating effects must be taken

O

Electrical Characteristics (MC7809A)

(Refer to the test circuits. 0°C < TJ < 125°C, Io =1A, V

Parameter Symbol Conditions Min. Typ. Max. Unit

TJ =+25°C 8.82 9.0 9.18

Output Voltage V

Line Regulation (Note1)

Load Regulation (Note1)

Quiescent Current I

Quiescent Current Change ∆I

Output Voltage Drift ∆V/∆TI
Output Noise Voltage V

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

O

Regline

Regload

Q

Q

N

Drop

O

SC

PK

= 5mA to 1A, P

I

O

V

= 11.2V to 24V

I

= 11.7V to 25V

V

I

I

= 500mA

O

= 12.5V to 19V - 4 45

V

I

=+25°C

T

J

T

=+25°C

J

I

= 5mA to 1.0A

O

= 5mA to 1.0A - 12 100

I

O

= 250mA to 750mA - 5 50

I

O

TJ =+25 °C-5.06.0mA
VI = 11.7V to 25V, TJ=+25 °C--0.8

= 12V to 25V, IO = 500mA - - 0.8

I

I

= 5mA to 1.0A - - 0.5

O

= 5mA - -1.0 - mV/ °C

O

f = 10Hz to 100KHz
T

=+25 °C

A

f = 120Hz, I
V

= 12V to 22V

I

IO = 1A, TJ =+25 °C-2.0-V
f = 1KHz - 17 - mΩ
VI= 35V, TA =+25 °C - 250 - mA
TJ=+25°C-2.2-A

MC78XX/LM78XX/MC78XXA

= 15V, C I=0.33µF, C O=0.1µF, unless otherwise specified)

I

≤15W

O

8.65 9.0 9.35

-690
mV

V

= 11.5V to 24V - 6 90

I

= 12.5V to 19V - 2 45

V

I

- 12 100
mV

mAV

-10-µV/Vo

= 500mA

O

-62- dB

V

Note:

1. Load and line regulation are specified at constant, junction temperature. Change in V
into account separately. Pulse testing with low duty is used.

due to heating effects must be taken

O

14

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7810A)

(Refer to the test circuits. 0°C < TJ < 125°C, Io =1A, V

Parameter Symbol Conditions Min. Typ. Max. Unit

TJ =+25°C 9.8 10 10.2

Output Voltage V

Line Regulation (Note1)

Load Regulation (Note1)

Quiescent Current I

Quiescent Current Change ∆I

Output Voltage Drift ∆V/∆T I
Output Noise Voltage V

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

O

Regline

Regload

Q

Q

N

Drop

O
SC
PK

= 5mA to 1A, P

I

O

V

=12.8V to 25V

I

= 12.8V to 26V

V

I

I

= 500mA

O

= 13V to 20V - 4 50

V

I

=+25 °C

T

J

T

=+25 °C

J

I

= 5mA to 1.5A

O

= 5mA to 1.0A - 12 100

I

O

= 250mA to 750mA - 5 50

I

O

TJ =+25 °C-5.06.0mA
VI = 13V to 26V, TJ=+25 °C--0.5

= 12.8V to 25V, IO = 500mA - - 0.8

I

I

= 5mA to 1.0A - - 0.5

O

= 5mA - -1.0 - mV/ °C

O

f = 10Hz to 100KHz
T

=+25 °C

A

f = 120Hz, I
V

= 14V to 24V

I

IO = 1A, TJ =+25°C-2.0-V
f = 1KHz - 17 - mΩ
VI= 35V, TA =+25 °C - 250 - mA
TJ=+25 °C-2.2-A

= 16V, C I=0.33µF, C O=0.1µF, unless otherwise specified)

I

≤ 15W

O

9.6 10 10.4

- 8 100
mV

V

= 12.5V to 25V - 8 100

I

= 13V to 20V - 3 50

V

I

- 12 100
mV

mA V

µV/Vo

= 500mA

O

-10-

-62- dB

V

Note:

1. Load and line regulation are specified at constant junction temperature. Change in V
into account separately. Pulse testing with low duty is used.

15

due to heating effects must be taken

O

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7812A)

(Refer to the test circuits. 0°C < TJ < 125°C, Io =1A, V

Parameter Symbol Conditions Min. Typ. Max. Unit

TJ =+25 °C 11.75 12 12.25

Output Voltage V

Line Regulation (Note1)

Load Regulation (Note1)

Quiescent Current I

Quiescent Current Change ∆I

Output Voltage Drift ∆V/∆T I
Output Noise Voltage V

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

O

Regline

Regload

Q

Q

N

Drop

O
SC
PK

= 5mA to 1A, P

I

O

V

= 14.8V to 27V

I

= 14.8V to 30V

V

I

I

= 500mA

O

= 16V to 22V - 4 120

V

I

=+25 °C

T

J

T

=+25 °C

J

I

= 5mA to 1.5A

O

= 5mA to 1.0A - 12 100

I

O

= 250mA to 750mA - 5 50

I

O

TJ =+25°C-5.16.0mA
VI = 15V to 30V, TJ=+25 °C- 0.8

= 14V to 27V, IO = 500mA - 0.8

I

I

= 5mA to 1.0A - 0.5

O

= 5mA - -1.0 - mV/°C

O

f = 10Hz to 100KHz
T

=+25°C

A

f = 120Hz, I
V

= 14V to 24V

I

IO = 1A, TJ =+25°C-2.0-V
f = 1KHz - 18 - mΩ
VI= 35V, TA =+25 °C - 250 - mA
TJ=+25 °C-2.2-A

= 19V, C I=0.33µF, C O=0.1µF, unless otherwise specified)

I

≤15W

O

11.5 12 12.5

- 10 120
mV

V

= 14.5V to 27V - 10 120

I

= 16V to 22V - 3 60

V

I

- 12 100
mV

mA V

-10-µV/Vo

= 500mA

O

-60- dB

V

Note:

1. Load and line regulation are specified at constant junction temperature. Change in V
into account separately. Pulse testing with low duty is used.

16

due to heating effects must be taken

O

Electrical Characteristics (MC7815A)

(Refer to the test circuits. 0°C < TJ < 125°C, Io =1A, V

Parameter Symbol Conditions Min. Typ. Max. Unit

TJ =+25 °C 14.7 15 15.3

Output Voltage V

Line Regulation (Note1)

Load Regulation (Note1)

Quiescent Current I

Quiescent Current Change ∆I

Output Voltage Drift ∆V/∆T I
Output Noise Voltage V

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

O

Regline

Regload

Q

Q

N

Drop

O
SC
PK

= 5mA to 1A, P

I

O

V

= 17.7V to 30V

I

= 17.9V to 30V

V

I

I

= 500mA

O

= 20V to 26V - 5 150

V

I

=+25°C

T

J

T

=+25 °C

J

I

= 5mA to 1.5A

O

= 5mA to 1.0A - 12 100

I

O

= 250mA to 750mA - 5 50

I

O

TJ =+25 °C-5.26.0mA
VI = 17.5V to 30V, TJ =+25 °C--0.8

= 17.5V to 30V, IO = 500mA - - 0.8

I

I

= 5mA to 1.0A - - 0.5

O

= 5mA - -1.0 - mV/°C

O

f = 10Hz to 100KHz
T

=+25 °C

A

f = 120Hz, I
V

= 18.5V to 28.5V

I

IO = 1A, TJ =+25 °C-2.0-V
f = 1KHz - 19 - mΩ
VI= 35V, TA =+25 °C - 250 - mA
TJ=+25°C-2.2-A

MC78XX/LM78XX/MC78XXA

=23V, C I=0.33µF, C O=0.1µF, unless otherwise specified)

I

≤15W

O

14.4 15 15.6

- 10 150
mV

V

= 17.5V to 30V - 11 150

I

= 20V to 26V - 3 75

V

I

- 12 100
mV

mA V

-10-µV/Vo

= 500mA

O

-58- dB

V

Note:

1. Load and line regulation are specified at constant junction temperature. Change in V
into account separately. Pulse testing with low duty is used.

due to heating effects must be taken

O

17

MC78XX/LM78XX/MC78XXA

Electrical Characteristics (MC7818A)

(Refer to the test circuits. 0°C < TJ < 125°C, Io =1A, V

Parameter Symbol Conditions Min. Typ. Max. Unit

TJ =+25 °C 17.64 18 18.36

Output Voltage V

Line Regulation (Note1)

Load Regulation (Note1)

Quiescent Current I

Quiescent Current Change ∆I

Output Voltage Drift ∆V/∆T I
Output Noise Voltage V

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

O

Regline

Regload

Q

Q

N

Drop

O
SC
PK

= 5mA to 1A, P

I

O

V

= 21V to 33V

I

= 21V to 33V

V

I

I

= 500mA

O

= 21V to 33V - 5 180

V

I

=+25 °C

T

J

T

=+25°C

J

I

= 5mA to 1.5A

O

= 5mA to 1.0A - 15 100

I

O

= 250mA to 750mA - 7 50

I

O

TJ =+25 °C-5.26.0mA
VI = 21V to 33V, TJ=+25 °C--0.8

= 21V to 33V, IO = 500mA - - 0.8

I

I

= 5mA to 1.0A - - 0.5

O

= 5mA - -1.0 - mV/ °C

O

f = 10Hz to 100KHz
T

=+25°C

A

f = 120Hz, I
V

= 22V to 32V

I

IO = 1A, TJ =+25°C-2.0-V
f = 1KHz - 19 - mΩ
VI= 35V, TA =+25°C - 250 - mA
TJ=+25 °C-2.2-A

= 27V, C I=0.33µF, C O=0.1µF, unless otherwise specified)

I

≤15W

O

17.3 18 18.7

- 15 180
mV

V

= 20.6V to 33V - 15 180

I

= 24V to 30V - 5 90

V

I

- 15 100
mV

mA V

µV/Vo

= 500mA

O

-10-

-57- dB

V

Note:

1. Load and line regulation are specified at constant junction temperature. Change in V
into account separately. Pulse testing with low duty is used.

18

due to heating effects must be taken

O

Electrical Characteristics (MC7824A)

(Refer to the test circuits. 0°C < TJ < 125°C, Io =1A, V

Parameter Symbol Conditions Min. Typ. Max. Unit

TJ =+25 °C 23.5 24 24.5

Output Voltage V

Line Regulation (Note1)

Load Regulation (Note1)

Quiescent Current I

Quiescent Current Change ∆I

Output Voltage Drift ∆V/∆T I
Output Noise Voltage V

Ripple Rejection RR
Dropout Voltage V

Output Resistance r
Short Circuit Current I
Peak Current I

O

Regline

Regload

Q

Q

N

Drop

O
SC
PK

= 5mA to 1A, P

I

O

V

= 27.3V to 38V

I

= 27V to 38V

V

I

I

= 500mA

O

= 21V to 33V - 6 240

V

I

=+25 °C

T

J

T

=+25 °C

J

I

= 5mA to 1.5A

O

= 5mA to 1.0A - 15 100

I

O

= 250mA to 750mA - 7 50

I

O

TJ =+25 °C-5.26.0mA
VI = 27.3V to 38V, TJ =+25 °C--0.8

= 27.3V to 38V, IO = 500mA - - 0.8

I

I

= 5mA to 1.0A - - 0.5

O

= 5mA - -1.5 - mV/ °C

O

f = 10Hz to 100KHz
T

= 25 °C

A

f = 120Hz, I
V

= 28V to 38V

I

IO = 1A, TJ =+25 °C-2.0-V
f = 1KHz - 20 - mΩ
VI= 35V, TA =+25 °C - 250 - mA
TJ=+25 °C-2.2-A

MC78XX/LM78XX/MC78XXA

= 33V, C I=0.33µF, C O=0.1µF, unless otherwise specified)

I

≤15W

O

23 24 25

- 18 240
mV

V

= 26.7V to 38V - 18 240

I

= 30V to 36V - 6 120

V

I

- 15 100
mV

mA V

-10-µV/Vo

= 500mA

O

-54- dB

V

Note:

1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken
into account separately. Pulse testing with low duty is used.

19

MC78XX/LM78XX/MC78XXA

Typical Perfomance Characteristics

I

Figure 1. Quiescent Current

Figure 3. Output Voltage

Figure 2. Peak Output Current

Figure 4. Quiescent Current

20

Typical Applications

MC78XX/LM78XX/MC78XXA

Input

Input

MC78XX/LM78XX

Figure 5. DC Parameters

MC78XX/LM78XX

Figure 6. Load Regulation

Output

Output

Input

MC78XX/LM78XX

Figure 7. Ripple Rejection

Input

MC78XX/LM78XX

Figure 8. Fixed Output Regulator

Output

Output

21

MC78XX/LM78XX/MC78XXA

Input

MC78XX/LM78XX

CI

Co

Output

Figure 9. Constant Current Regulator

Notes:

(1) To specify an output voltage. substitute voltage value for "XX." A common ground is required between the input and the

Output voltage. The inpu t vol tage mu st rema in typica lly 2.0V abov e the outp ut volt age eve n durin g the low poi nt on the i nput
ripple voltage.

is required if regulator is located an appreciable distance from power Supply filter.

(2) C

I

(3) C

improves stability and transient response.

O

Input

MC78XX/LM78XX

CI

Co

Output

22

IRI5IQ≥

V

= VXX(1+R2/R1)+IQR

O

2

Figure 10. Circuit for Increasing Output Voltage

Input

CI

MC7805
LM7805

≥5 I

I

RI

VO = VXX(1+R2/R1)+IQR

LM741

Q

2

Figure 11. Adjustable Output Re gulator (7 to 30V)

Output

Co

Input

MC78XX/LM78XX/MC78XXA

MC78XX/LM78XX

Output

Figure 12. High Current Vo ltage Regulator

Input

MC78XX/LM78XX

Output

Figure 13. High Output Current with Short Circuit Protection

MC78XX/LM78XX

LM741

Figure 14. Tracking Voltage Regulator

23

MC78XX/LM78XX/MC78XXA

MC7815

MC7915

Figure 15. Split Power Supply ( ±15V-1A)

Output

Input

MC78XX/LM78XX

Figure 16. Negative Output Voltage Circuit

Input

MC78XX/LM78XX

Figure 17. Switching Regulator

Output

24

Mechanical Dimensions

Package

MC78XX/LM78XX/MC78XXA

(1.70)

9.20 ±0.2013.08 ±0.20

1.30 ±0.10

(1.46)

(1.00)

1.27 ±0.10

9.90 ±0.20
(8.70)

ø3.60 ±0.10

TO-220

(3.70)(3.00)

(45°)

1.52 ±0.10

2.80 ±0.1015.90 ±0.20

18.95MAX.

4.50 ±0.20

+0.10

1.30

–0.05

2.54TYP

±0.20]

[2.54

10.00 ±0.20

0.80 ±0.10

2.54TYP

±0.20]

[2.54

10.08 ±0.30

0.50

+0.10
–0.05

2.40 ±0.20

25

MC78XX/LM78XX/MC78XXA

Mechancal Dimensions

Package

6.60 ±0.20

5.34 ±0.30
(4.34)(0.50) (0.50)

0.60 ±0.20

0.80 ±0.20

(Continued)

D-PAK

0.70 ±0.20

6.10 ±0.20

2.70 ±0.20

9.50 ±0.30

2.30 ±0.10

0.50 ±0.10

±0.10

0.91
MIN0.55

MAX0.96

2.30TYP

[2.30±0.20]

0.76 ±0.10

2.30TYP

[2.30±0.20]

9.50 ±0.30

6.10 ±0.20

2.70 ±0.20

0.89 ±0.10

6.60 ±0.20
(5.34)

(5.04)
(1.50)

(2XR0.25)

0.50 ±0.10

1.02 ±0.20

2.30 ±0.20

(0.90)

(0.70)

(0.10) (3.05)

0.76 ±0.10

(1.00)

26

MC78XX/LM78XX/MC78XXA

Ordering Information

Product Number Output Voltage Tolerance Package Operating Temperature

LM7805CT ±4% TO-220 0 ~ + 125°C

Product Number Output Voltage Tolerance Package Operating Temperature

MC7805CT
MC7806CT
MC7808CT
MC7809CT
MC7810CT
MC7812CT
MC7815CT
MC7818CT

MC7824CT
MC7805CDT
MC7806CDT
MC7808CDT
MC7809CDT
MC7810CDT
MC7812CDT
MC7805ACT
MC7806ACT
MC7808ACT
MC7809ACT
MC7810ACT
MC7812ACT
MC7815ACT
MC7818ACT
MC7824ACT

±

4%

±2% TO-220

TO-220

D-PAK

0 ~ + 125°C

27

MC78XX/LM78XX/MC78XXA

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURT HER NOTICE TO ANY
PRODUCTS HEREI N TO IMPROVE RELIABILITY, FUNCTIO N OR DESIGN. FAIRCH IL D 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 IT S PATENT RIGHTS, NOR THE RIGHTS OF OTHE RS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR
SYSTEMS WITHOUT THE EXPRESS W RITTEN APPROVAL OF THE PRESIDENT OF FAI R CH I LD 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

2. A critical component in any component of a life support
device or sy stem whose fai lure 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 t iv ene ss .

instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.

www.fairchildsemi.com

7/2/01 0.0m 001

 2001 Fairchild Semiconductor Corporation

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