SEMICONDUCTOR

TECHNICAL DATA

Order this document by MC7800/D

MC7800,

MC7800A, LM340,

LM340A Series

D2T SUFFIX

PLASTIC PACKAGE

CASE 936

(D2PAK)

THREETERMINAL

POSITIVE FIXED

VOLTAGE REGULATORS

STANDARD APPLICATION

A common ground is required between the

input and the output voltages. The input voltage
must remain typically 2.0 V above the output
voltage even during the low point on the input
ripple voltage.

XX,

MC78XX

Input

Cin*

0.33

CO**

Output

Pin 1. Input

2. Ground
3. Output

T SUFFIX

PLASTIC PACKAGE

CASE 221A

Heatsink surface

connected to Pin 2.

Heatsink surface (shown as terminal 4 in

case outline drawing) is connected to Pin 2.

These two digits of the type number
indicate nominal voltage.

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

CO is not needed for stability; however,
it does improve transient response. Values
of less than 0.1

F could cause instability.

MOTOROLA ANALOG IC DEVICE DATA

Three-Terminal Positive

Voltage Regulators

These voltage regulators are monolithic integrated circuits designed as

fixedvoltage regulators for a wide variety of applications including local,
oncard regulation. These regulators employ internal current limiting,
thermal shutdown, and safearea compensation. With adequate heatsinking
they can deliver output currents in excess of 1.0 A. Although designed
primarily as a fixed voltage regulator, these devices can be used with
external components to obtain adjustable voltages and currents.

Output Current in Excess of 1.0 A

No External Components Required

Internal Thermal Overload Protection

Internal Short Circuit Current Limiting

Output Transistor SafeArea Compensation

Output Voltage Offered in 2% and 4% Tolerance

Available in Surface Mount D2PAK and Standard 3Lead Transistor

Packages

Previous Commercial Temperature Range has been Extended to a

Junction Temperature Range of 40

C to +125

DEVICE TYPE/NOMINAL OUTPUT VOLTAGE

MC7805AC

5 0 V

MC7812C

12 V

LM340AT5

5 0 V

LM340T12

12 V

MC7805C

5.0 V

MC7815AC

15 V

LM340T5

LM340AT15

15 V

MC7806AC

6 0 V

MC7815C

15 V

MC7806C

6.0 V

LM340T15

MC7808AC

8 0 V

MC7818AC

18 V

MC7808C

8.0 V

MC7818C

18 V

MC7809C

9.0 V

MC7824AC

24 V

MC7812AC

12 V

MC7824C

24 V

LM340AT12

12 V

ORDERING INFORMATION

Device

Output Voltage

Tolerance

Operating

Temperature Range

Package

MC78XXACT

125

Insertion Mount

LM340ATXX

125

Insertion Mount

MC78XXACD2T

TJ = 40

to +125

Surface Mount

MC78XXCT

TJ = 40

to +125

Insertion Mount

LM340TXX

Insertion Mount

MC78XXCD2T

Surface Mount

XX indicates nominal voltage.

Motorola, Inc. 1997

Rev 5

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

MAXIMUM RATINGS

(TA = 25

C, unless otherwise noted.)

Rating

Symbol

Value

Unit

Input Voltage (5.0 18 V)

Vdc

Input Voltage

(24 V)

Power Dissipation
Case 221A

TA = 25

Internally Limited

Thermal Resistance, JunctiontoAmbient

C/W

Thermal Resistance, JunctiontoCase

5.0

C/W

Case 936 (D2PAK)

TA = 25

Internally Limited

Thermal Resistance, JunctiontoAmbient

See Figure 13

C/W

Thermal Resistance, JunctiontoCase

5.0

C/W

Storage Junction Temperature Range

Tstg

65 to +150

Operating Junction Temperature

+150

NOTE: ESD data available upon request.

R15

680

R18
100 k

D1
Zener

R1
10.66 k

R2
1.56 k

R17
9.0 k

Q7
QNPN

LAT

Q17

QNPN 2

Q8
QNPN

Q14

QNPN

Q6
QNPN

Q5
QNPN 2

LAT 3 A
Q18

R5
4.5 k

R6
1.0 k

Q13
QNPN

Q2
QNPN 4

SUB
Q11 2

R11
15 k

QNPN 6

R7
14 k

R3
1.8 k

R8
5.0 k

Diode

Q16

QNPN

N+

C1
30 P

3.0 P

R9
3.0 k

R16
600

R20
17500

Q15

QNPN

Q10

QNPN

R22
100

Q12

QNPN

R24
50

1.0 P

R21

600

R23
0.2

R19
27.5 k

D2
Zener

Q19
QNPN

R14
1.0 k

Q20
QNPN

R28
9.0 k

R27
9.0 k

R29
9.0 k

R25

6.0 k

R26

3.0 k

R12

3.0 k

R10

3340(3316ACT)

R30
18 k

Sense

Vout

5.01

Vin

R13
11660

Q3
QNPN

MC7800

Representative Schematic Diagram

This device contains 22 active transistors.

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS

(Vin = 10 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7805C/LM340T5

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

4.8

5.0

5.2

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

Vdc

7.0 Vdc

Vin

20 Vdc

4.75

5.0

5.25

8.0 Vdc

Vin

20 Vdc

Line Regulation (Note 2)

Regline

7.5 Vdc

Vin

20 Vdc, 1.0 A

0.5

8.0 Vdc

Vin

12 Vdc

0.8

Load Regulation (Note 2)

Regload

5.0 mA

1.0 A

1.3

5.0 mA

1.5 A (TA = 25

1.3

Quiescent Current

3.2

6.5

Quiescent Current Change

7.0 Vdc

Vin

25 Vdc

0.3

1.0

5.0 mA

1.0 A (TA = 25

0.08

0.8

Ripple Rejection

8.0 Vdc

Vin

18 Vdc, f = 120 Hz

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance f = 1.0 kHz

0.9

Short Circuit Current Limit (TA = 25

ISC

0.6

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

0.3

mV/

ELECTRICAL CHARACTERISTICS

(Vin = 10 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7805AC/LM340AT5

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

4.9

5.0

5.1

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

4.8

5.0

5.2

Vdc

7.5 Vdc

Vin

20 Vdc

Line Regulation (Note 2)

Regline

7.5 Vdc

Vin

25 Vdc, IO = 500 mA

0.5

8.0 Vdc

Vin

12 Vdc, IO = 1.0 A

0.8

8.0 Vdc

Vin

12 Vdc, IO = 1.0 A, TJ = 25

1.3

4.0

7.3 Vdc

Vin

20 Vdc, IO = 1.0 A, TJ = 25

4.5

Load Regulation (Note 2)

Regload

5.0 mA

1.5 A, TJ = 25

1.3

5.0 mA

1.0 A

0.8

250 mA

750 mA

0.53

Quiescent Current

3.2

6.0

Quiescent Current Change

8.0 Vdc

Vin

25 Vdc, IO = 500 mA

0.3

0.8

7.5 Vdc

Vin

20 Vdc, TJ = 25

0.8

5.0 mA

1.0 A

0.08

0.5

Ripple Rejection

8.0 Vdc

Vin

18 Vdc, f = 120 Hz, IO = 500 mA

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

NOTES: 1. Tlow = 40

C for MC78XXAC, C, LM340ATXX, LM340TXX

Thigh = +125

C for MC78XXAC, C, LM340ATXX, LM340TXX

2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account

separately. Pulse testing with low duty cycle is used.

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS (continued)

(Vin = 10 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7805AC/LM340AT5

Characteristic

Symbol

Min

Typ

Max

Unit

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance (f = 1.0 kHz)

0.9

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

0.3

mV/

NOTES: 1. Tlow = 40

C for MC78XXAC, C, LM340ATXX, LM340TXX

Thigh = +125

C for MC78XXAC, C, LM340ATXX, LM340TXX

2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account

separately. Pulse testing with low duty cycle is used.

ELECTRICAL CHARACTERISTICS

(Vin = 11 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7806C

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

5.75

6.0

6.25

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

Vdc

8.0 Vdc

Vin

21 Vdc

5.7

6.0

6.3

9.0 Vdc

Vin

21 Vdc

Line Regulation, TJ = 25

C (Note 2)

Regline

8.0 Vdc

Vin

25 Vdc

0.5

9.0 Vdc

Vin

13 Vdc

0.8

Load Regulation, TJ = 25

C (Note 2)

Regload

1.3

5.0 mA

1.5 A

Quiescent Current (TJ = 25

3.3

8.0

Quiescent Current Change

8.0 Vdc

Vin

25 Vdc

0.3

1.3

5.0 mA

1.0 A

0.08

0.5

Ripple Rejection

9.0 Vdc

Vin

19 Vdc, f = 120 Hz

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance f = 1.0 kHz

0.9

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

0.3

mV/

NOTES: 1. Tlow = 40

C for MC78XXAC, C Thigh = +125

C for MC78XXAC, C

2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account

separately. Pulse testing with low duty cycle is used.

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS

(Vin = 11 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7806AC

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

5.88

6.0

6.12

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

5.76

6.0

6.24

Vdc

8.6 Vdc

Vin

21 Vdc

Line Regulation (Note 2)

Regline

8.6 Vdc

Vin

25 Vdc, IO = 500 mA

5.0

9.0 Vdc

Vin

13 Vdc, IO = 1.0 A

1.4

Load Regulation (Note 2)

Regload

5.0 mA

1.5 A, TJ = 25

1.3

5.0 mA

1.0 A

0.9

250 mA

750 mA

0.2

Quiescent Current

3.3

6.0

Quiescent Current Change

9.0 Vdc

Vin

25 Vdc, IO = 500 mA

0.8

9.0 Vdc

Vin

21 Vdc, IO = 1.0 A, TJ = 25

0.8

5.0 mA

1.0 A

0.5

Ripple Rejection

9.0 Vdc

Vin

19 Vdc, f = 120 Hz, IO = 500 mA

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance (f = 1.0 kHz)

0.9

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

0.3

mV/

ELECTRICAL CHARACTERISTICS

(Vin = 14 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7808C

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

7.7

8.0

8.3

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

7.6

8.0

8.4

Vdc

10.5 Vdc

Vin

23 Vdc

Line Regulation, TJ = 25

C, (Note 2)

Regline

10.5 Vdc

Vin

25 Vdc

6.0

11 Vdc

Vin

17 Vdc

1.7

Load Regulation, TJ = 25

C (Note 2)

Regload

1.4

5.0 mA

1.5 A

Quiescent Current

3.3

8.0

Quiescent Current Change

10.5 Vdc

Vin

25 Vdc

1.0

5.0 mA

1.0 A

0.5

Ripple Rejection

11.5 Vdc

Vin

18 Vdc, f = 120 Hz

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

NOTES: 1. Tlow = 40

C for MC78XXAC, C Thigh = +125

C for MC78XXAC, C

2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account

separately. Pulse testing with low duty cycle is used.

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS

(continued) (Vin = 14 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7808C

Characteristic

Symbol

Min

Typ

Max

Unit

Output Resistance f = 1.0 kHz

0.9

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

0.4

mV/

ELECTRICAL CHARACTERISTICS

(Vin = 14 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7808AC

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

7.84

8.0

8.16

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

7.7

8.0

8.3

Vdc

10.6 Vdc

Vin

23 Vdc

Line Regulation (Note 2)

Regline

10.6 Vdc

Vin

25 Vdc, IO = 500 mA

6.0

11 Vdc

Vin

17 Vdc, IO = 1.0 A

1.7

10.4 Vdc

Vin

23 Vdc, TJ = 25

5.0

Load Regulation (Note 2)

Regload

5.0 mA

1.5 A, TJ = 25

1.4

5.0 mA

1.0 A

1.0

250 mA

750 mA

0.22

Quiescent Current

3.3

6.0

Quiescent Current Change

11 Vdc

Vin

25 Vdc, IO = 500 mA

0.8

10.6 Vdc

Vin

23 Vdc, IO = 1.0 A, TJ = 25

0.8

5.0 mA

1.0 A

0.5

Ripple Rejection

11.5 Vdc

Vin

21.5 Vdc, f = 120 Hz, IO = 500 mA

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance f = 1.0 kHz

0.9

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

0.4

mV/

NOTES: 1. Tlow = 40

C for MC78XXAC, C Thigh = +125

C for MC78XXAC, C

2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account

separately. Pulse testing with low duty cycle is used.

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS

(Vin = 15 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7809CT

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

8.65

9.0

9.35

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

8.55

9.0

9.45

Vdc

11.5 Vdc

Vin

24 Vdc

Line Regulation, TJ = 25

C (Note 2)

Regline

11 Vdc

Vin

26 Vdc

6.2

11.5 Vdc

Vin

17 Vdc

1.8

Load Regulation, TJ = 25

C (Note 2)

Regload

1.5

5.0 mA

1.5 A

Quiescent Current

3.4

8.0

Quiescent Current Change

11.5 Vdc

Vin

26 Vdc

1.0

5.0 mA

1.0 A

0.5

Ripple Rejection

11.5 Vdc

Vin

21.5 Vdc, f = 120 Hz

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance f = 1.0 kHz

1.0

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

0.5

mV/

ELECTRICAL CHARACTERISTICS

(Vin = 19 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7812C/LM340T12

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

11.5

12.5

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

11.4

12.6

Vdc

14.5 Vdc

Vin

27 Vdc

Line Regulation, TJ = 25

C (Note 2)

Regline

14.5 Vdc

Vin

30 Vdc

3.8

16 Vdc

Vin

22 Vdc

0.3

14.8 Vdc

Vin

27 Vdc, IO = 1.0 A

Load Regulation, TJ = 25

C (Note 2)

Regload

8.1

5.0 mA

1.5 A

Quiescent Current

3.4

6.5

Quiescent Current Change

14.5 Vdc

Vin

30 Vdc, IO = 1.0 A, TJ = 25

0.7

15 Vdc

Vin

30 Vdc

0.8

5.0 mA

1.0 A

0.5

Ripple Rejection

15 Vdc

Vin

25 Vdc, f = 120 Hz

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

NOTES: 1. Tlow = 40

C for MC78XXAC, C, LM340ATXX, LM340TXX Thigh = +125

C for MC78XXAC, C, LM340ATXX, LM340TXX

2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account

separately. Pulse testing with low duty cycle is used.

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS (continued)

(Vin = 19 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7812C/LM340T12

Characteristic

Symbol

Min

Typ

Max

Unit

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance f = 1.0 kHz

1.1

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

0.8

mV/

ELECTRICAL CHARACTERISTICS

(Vin = 19 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7812AC/LM340AT12

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

11.75

12.25

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

11.5

12.5

Vdc

14.8 Vdc

Vin

27 Vdc

Line Regulation (Note 2)

Regline

14.8 Vdc

Vin

30 Vdc, IO = 500 mA

3.8

16 Vdc

Vin

22 Vdc, IO = 1.0 A

2.2

14.5 Vdc

Vin

27 Vdc, TJ = 25

6.0

120

Load Regulation (Note 2)

Regload

5.0 mA

1.5 A, TJ = 25

5.0 mA

1.0 A

Quiescent Current

3.4

6.0

Quiescent Current Change

15 Vdc

Vin

30 Vdc, IO = 500 mA

0.8

14.8 Vdc

Vin

27 Vdc, TJ = 25

0.8

5.0 mA

1.0 A, TJ = 25

0.5

Ripple Rejection

15 Vdc

Vin

25 Vdc, f = 120 Hz, IO = 500 mA

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance (f = 1.0 kHz)

1.1

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

0.8

mV/

NOTES: 1. Tlow = 40

C for MC78XXAC, C, LM340ATXX, LM340TXX Thigh = +125

C for MC78XXAC, C, LM340ATXX, LM340TXX

2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account

separately. Pulse testing with low duty cycle is used.

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS

(Vin = 23 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7815C/LM340T15

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

14.4

15.6

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

14.25

15.75

Vdc

17.5 Vdc

Vin

30 Vdc

Line Regulation, TJ = 25

C (Note 2)

Regline

17.9 Vdc

Vin

30 Vdc

8.5

20 Vdc

Vin

26 Vdc

3.0

Load Regulation, TJ = 25

C (Note 2)

Regload

1.8

5.0 mA

1.5 A

Quiescent Current

3.5

6.5

Quiescent Current Change

17.5 Vdc

Vin

30 Vdc

0.8

17.5 Vdc

Vin

30 Vdc, IO = 1.0 A, TJ = 25

0.7

5.0 mA

1.0 A

0.5

Ripple Rejection

18.5 Vdc

Vin

28.5 Vdc, f = 120 Hz

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance f = 1.0 kHz

1.2

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

1.0

mV/

ELECTRICAL CHARACTERISTICS

(Vin = 23 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7815AC/LM340AT15

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

14.7

15.3

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

14.4

15.6

Vdc

17.9 Vdc

Vin

30 Vdc

Line Regulation (Note 2)

Regline

17.9 Vdc

Vin

30 Vdc, IO = 500 mA

8.5

20 Vdc

Vin

26 Vdc

3.0

17.5 Vdc

Vin

30 Vdc, IO = 1.0 A, TJ = 25

7.0

Load Regulation (Note 2)

Regload

5.0 mA

1.5 A, TJ = 25

1.8

5.0 mA

1.0 A

1.5

250 mA

750 mA

1.2

Quiescent Current

3.5

6.0

Quiescent Current Change

17.5 Vdc

Vin

30 Vdc, IO = 500 mA

0.8

17.5 Vdc

Vin

30 Vdc, IO = 1.0 A, TJ = 25

0.8

5.0 mA

1.0 A

0.5

NOTES: 1. Tlow = 40

C for MC78XXAC, C, LM340ATXX, LM340TXX Thigh = +125

C for MC78XXAC, C, LM340ATXX, LM340TXX

2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account

separately. Pulse testing with low duty cycle is used.

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS (continued)

(Vin = 23 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7815AC/LM340AT15

Characteristic

Symbol

Min

Typ

Max

Unit

Ripple Rejection

18.5 Vdc

Vin

28.5 Vdc, f = 120 Hz, IO = 500 mA

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance f = 1.0 kHz

1.2

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

1.0

mV/

ELECTRICAL CHARACTERISTICS

(Vin = 27 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7818C

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

17.3

18.7

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

17.1

18.9

Vdc

21 Vdc

Vin

33 Vdc

Line Regulation, (Note 2)

Regline

21 Vdc

Vin

33 Vdc

9.5

24 Vdc

Vin

30 Vdc

3.2

Load Regulation, (Note 2)

Regload

2.0

5.0 mA

1.5 A

Quiescent Current

3.5

6.5

Quiescent Current Change

21 Vdc

Vin

33 Vdc

1.0

5.0 mA

1.0 A

0.5

Ripple Rejection

22 Vdc

Vin

33 Vdc, f = 120 Hz

Dropout Voltage (IO = 1.0 A, TJ = 25

ViI VO

2.0

Vdc

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance f = 1.0 kHz

1.3

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

1.5

mV/

NOTES: 1. Tlow = 40

C for MC78XXAC, C Thigh = +125

C for MC78XXAC, C

2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account

separately. Pulse testing with low duty cycle is used.

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS

(Vin = 27 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7818AC

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

17.64

18.36

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

17.3

18.7

Vdc

21 Vdc

Vin

33 Vdc

Line Regulation (Note 2)

Regline

21 Vdc

Vin

33 Vdc, IO = 500 mA

9.5

24 Vdc

Vin

30 Vdc, IO = 1.0 A

3.2

24 Vdc

Vin

30 Vdc, IO = 1.0 A, TJ = 25

3.2

10.5

20.6 Vdc

Vin

33 Vdc, IO = 1.0 A, TJ = 25

8.0

Load Regulation (Note 2)

Regload

5.0 mA

1.5 A, TJ = 25

2.0

5.0 mA

1.0 A

1.8

250 mA

750 mA

1.5

Quiescent Current

3.5

6.0

Quiescent Current Change

21 Vdc

Vin

33 Vdc, IO = 500 mA

0.8

21.5 Vdc

Vin

30 Vdc, TJ = 25

0.8

5.0 mA

1.0 A

0.5

Ripple Rejection

22 Vdc

Vin

32 Vdc, f = 120 Hz, IO = 500 mA

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance f = 1.0 kHz

1.3

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

1.5

mV/

ELECTRICAL CHARACTERISTICS

(Vin = 33 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7824C

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

22.8

25.2

Vdc

27 Vdc

Vin

38 Vdc

Line Regulation, (Note 2)

Regline

27 Vdc

Vin

38 Vdc

2.7

30 Vdc

Vin

36 Vdc

2.7

Load Regulation, (Note 2)

Regload

4.4

5.0 mA

1.5 A

Quiescent Current

3.6

6.5

Quiescent Current Change

27 Vdc

Vin

38 Vdc

1.0

5.0 mA

1.0 A

0.5

NOTES: 1. Tlow = 40

C for MC78XXAC, C Thigh = +125

C for MC78XXAC, C

2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account

separately. Pulse testing with low duty cycle is used.

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS

(continued) (Vin = 33 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7824C

Characteristic

Symbol

Min

Typ

Max

Unit

Ripple Rejection

28 Vdc

Vin

38 Vdc, f = 120 Hz

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance f = 1.0 kHz

1.4

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

2.0

mV/

ELECTRICAL CHARACTERISTICS

(Vin = 33 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

MC7824AC

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = 25

23.5

24.5

Vdc

Output Voltage (5.0 mA

1.0 A, PD

15 W)

23.2

25.8

Vdc

27.3 Vdc

Vin

38 Vdc

Line Regulation (Note 2)

Regline

27 Vdc

Vin

38 Vdc, IO = 500 mA

11.5

30 Vdc

Vin

36 Vdc, IO = 1.0 A

3.8

30 Vdc

Vin

36 Vdc, TJ = 25

3.8

26.7 Vdc

Vin

38 Vdc, IO = 1.0 A, TJ = 25

Load Regulation (Note 2)

Regload

5.0 mA

1.5 A, TJ = 25

2.1

5.0 mA

1.0 A

2.0

250 mA

750 mA

1.8

Quiescent Current

3.6

6.0

Quiescent Current Change

27.3 Vdc

Vin

38 Vdc, IO = 500 mA

0.8

27 Vdc

Vin

38 Vdc, TJ = 25

0.8

5.0 mA

1.0 A

0.5

Ripple Rejection

28 Vdc

Vin

38 Vdc, f = 120 Hz, IO = 500 mA

Dropout Voltage (IO = 1.0 A, TJ = 25

VI VO

2.0

Vdc

Output Noise Voltage (TA = 25

V/VO

10 Hz

100 kHz

Output Resistance (f = 1.0 kHz)

1.4

Short Circuit Current Limit (TA = 25

ISC

0.2

Vin = 35 Vdc

Peak Output Current (TJ = 25

Imax

2.2

Average Temperature Coefficient of Output Voltage

TCVO

2.0

mV/

NOTES: 1. Tlow = 40

C for MC78XXAC, C Thigh = +125

C for MC78XXAC, C

2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account

separately. Pulse testing with low duty cycle is used.

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

Figure 1. Peak Output Current as a Function of

Input/Output Differential Voltage (MC78XXC, AC)

Figure 2. Ripple Rejection as a Function of

Output Voltages (MC78XXC, AC)

Figure 3. Ripple Rejection as a Function of

Frequency (MC78XXC, AC)

Figure 4. Output Voltage as a Function of

Junction Temperature (MC7805C, AC)

Figure 5. Output Impedance as a Function of

Output Voltage (MC78XXC, AC)

Figure 6. Quiescent Current as a Function of

Temperature (MC78XXC, AC)

I O

VinVout, INPUT/OUPUT VOLTAGE DIFFERENTIAL (V)

3.0

2.0

1.5

1.0

4.0

8.0

, OUTPUT

CURRENT

(A)

4.0

6.0

8.0

VO, OUTPUT VOLTAGE (V)

RR, RIPPLE REJECTION (dB)

PART #

Vin

MC7805C = 10 V
MC7806C = 11 V
MC7808C = 14 V
MC7812C = 19 V
MC7815C = 23 V
MC7818C = 27 V
MC7824C = 33 V

RR, RIPPLE REJECTION (dB)

0.1

f, FREQUENCY (kHz)

0.01

, OUTPUT

VOL

T
AGE

(V)

5.0

4.9

100

140

180

TJ, JUNCTION TEMPERATURE (

,
OUTPUT

IMPEDANCE (m

)

5.0

3.0
2.0

1.0

0.5

0.3
0.2

0.1

4.0

8.0

VO, OUTPUT VOLTAGE (V)

, QUIESCENT

CURRENT

(mA)

6.0

4.0

3.0

2.0

1.0

TJ, JUNCTION TEMPERATURE (

100

125

2.5

0.5

4.8

6.0

TJ = 85

TJ = 25

1.0

f = 120 Hz
IO = 20 mA

Vin = 1.0 V(RMS)

TJ = 125

TJ = 0

f = 120 Hz
IO = 500 mA

CL = 0

Vin = 10 V

VO = 5.0 V

IL = 20 mA

Vin = 20 V

IO = 5.0 mA

MC78XXB, C, AC

Vin = 8.0 V to 18 V

IO = 500 mA

f = 120 Hz
TA = 25

TJ = 40

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

APPLICATIONS INFORMATION

Design Considerations

The MC7800 Series of fixed voltage regulators are

designed with Thermal Overload Protection that shuts down
the circuit when subjected to an excessive power overload
condition, Internal Short Circuit Protection that limits the
maximum current the circuit will pass, and Output Transistor
SafeArea Compensation that reduces the output short
circuit current as the voltage across the pass transistor is
increased.

In many low current applications, compensation

capacitors are not required. However, it is recommended
that the regulator input be bypassed with a capacitor if the
regulator is connected to the power supply filter with long

wire lengths, or if the output load capacitance is large. An
input bypass capacitor should be selected to provide good
highfrequency characteristics to insure stable operation
under all load conditions. A 0.33

F or larger tantalum,

mylar, or other capacitor having low internal impedance at
high frequencies should be chosen. The bypass capacitor
should be mounted with the shortest possible leads directly
across the regulators input terminals. Normally good
construction techniques should be used to minimize ground
loops and lead resistance drops since the regulator has no
external sense lead.

5.0 V

)

Figure 7. Current Regulator

Figure 8. Adjustable Output Regulator

Figure 9. Current Boost Regulator

Figure 10. Short Circuit Protection

The MC7800 regulators can also be used as a current source when
connected as above. In order to minimize dissipation the MC7805C is
chosen in this application. Resistor R determines the current as follows:

For example, a 1.0 A current source would require R to be a 5.0

10 W resistor and the output voltage compliance would be the input
voltage less 7.0 V.

3.2 mA over line and load changes.

Input

0.33

MC7805

Constant
Current to
Grounded
Load

The addition of an operational amplifier allows adjustment to higher or
intermediate values while retaining regulation characteristics. The
minimum voltage obtainable with this arrangement is 2.0 V greater than the
regulator voltage.

Input

MC7805

Output

0.33

10 k

MC1741G

1.0 k

VO = 7.0 V to 20 V

VIN = VO

2.0 V

0.1

The MC7800 series can be current boosted with a PNP transistor. The
MJ2955 provides current to 5.0 A. Resistor R in conjunction with the VBE

of the PNP determines when the pass transistor begins conducting; this
circuit is not short circuit proof. Input/output differential voltage minimum is
increased by VBE of the pass transistor.

XX = 2 digits of type number indicating voltage.

MC78XX

Input

Output

1.0

MJ2955 or Equiv.

1.0

The circuit of Figure 9 can be modified to provide supply protection against
short circuits by adding a short circuit sense resistor, RSC, and an

additional PNP transistor. The current sensing PNP must be able to handle
the short circuit current of the threeterminal regulator. Therefore, a
fourampere plastic power transistor is specified.

XX = 2 digits of type number indicating voltage.

1.0

MC78XX

MJ2955

or Equiv.

Output

RSC

2N6049

or Equiv.

RSource

0.33

Input

RSource

0.33

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

Figure 11. Worst Case Power Dissipation versus

Ambient Temperature (Case 221A)

Figure 12. Input Output Differential as a Function

of Junction Temperature (MC78XXC, AC)

, POWER DISSIP

TION (W)

8.0

4.0

100

125

150

TA, AMBIENT TEMPERATURE (

HS = 0

C/W

DIFFERENTIAL

(V)

out

, INPUTOUTPUT

VOL

T
AGE

0.5

100

125

TJ, JUNCTION TEMPERATURE (

IO = 0 mA

IO = 20 mA

IO = 1.0 A

IO = 500 mA

IO = 200 mA

VO = 2% of VO

  Extended Curve for MC78XXB

JC = 5

C/W

JA = 65

C/W

TJ(max) = 150

HS = 5

C/W

HS = 15

C/W

No Heatsink

2.0

1.5

1.0

2.5

Figure 13. D2PAK Thermal Resistance and Maximum

Power Dissipation versus P.C.B. Copper Length

,
THERMAL

RESIST

ANCE

JUNCTION-T

O-AIR ( C/W)

1.0

1.5

2.0

2.5

3.0

3.5

5.0

L, LENGTH OF COPPER (mm)

PD(max) for TA = 50

Minimum
Size Pad

2.0 oz. Copper

ÎÎÎÎ

Free Air

Mounted

Vertically

, MAXIMUM POWER DISSIP

TION (W)

DEFINITIONS

Line Regulation The change in output voltage for a

change in the input voltage. The measurement is made under
conditions of low dissipation or by using pulse techniques such
that the average chip temperature is not significantly affected.

Load Regulation The change in output voltage for a

change in load current at constant chip temperature.

Maximum Power Dissipation The maximum total

device dissipation for which the regulator will operate within
specifications.

Quiescent Current That part of the input current that is

not delivered to the load.

Output Noise Voltage The rms ac voltage at the output,

with constant load and no input ripple, measured over a
specified frequency range.

Long Term Stability Output voltage stability under

accelerated life test conditions with the maximum rated
voltage listed in the devices' electrical characteristics and
maximum power dissipation.

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals"
must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.

MC7800, MC7800A, LM340, LM340A Series

MOTOROLA ANALOG IC DEVICE DATA

T SUFFIX

PLASTIC PACKAGE

CASE 221A06

ISSUE Y

OUTLINE DIMENSIONS

MIN

MAX

INCHES

MILLIMETERS

DIM

A
B
C
D

G
H

N
Q
R
S

U
V

14.48

9.66
4.07
0.64
3.61
2.42
2.80
0.46

12.70

1.15
4.83
2.54
2.04
1.15
5.97
0.00
1.15

15.75
10.28

4.82
0.88
3.73
2.66
3.93
0.64

14.27

1.52
5.33
3.04
2.79
1.39
6.47
1.27

2.04

0.570
0.380
0.160
0.025
0.142
0.095

0.110

0.018
0.500
0.045
0.190
0.100
0.080
0.045
0.235
0.000
0.045

0.620
0.405
0.190
0.035
0.147
0.105
0.155
0.025
0.562
0.060
0.210
0.120

0.110

0.055
0.255
0.050

0.080

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.
3. DIM Z DEFINES A ZONE WHERE ALL BODY AND

LEAD IRREGULARITIES ARE ALLOWED.

T

SEATING
PLANE

1 2 3

D2T SUFFIX

PLASTIC PACKAGE

CASE 93603

(D2PAK)

ISSUE B

5 REF

0.010 (0.254)

T

TERMINAL 4

NOTES:

1 DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

2 CONTROLLING DIMENSION: INCH.
3 TAB CONTOUR OPTIONAL WITHIN DIMENSIONS

A AND K.

4 DIMENSIONS U AND V ESTABLISH A MINIMUM

MOUNTING SURFACE FOR TERMINAL 4.

5 DIMENSIONS A AND B DO NOT INCLUDE MOLD

FLASH OR GATE PROTRUSIONS. MOLD FLASH
AND GATE PROTRUSIONS NOT TO EXCEED
0.025 (0.635) MAXIMUM.

DIM

MIN

MAX

MIN

MAX

MILLIMETERS

0.386

0.403

9.804

10.236

INCHES

0.356

0.368

9.042

9.347

0.170

0.180

4.318

4.572

0.026

0.036

0.660

0.914

0.045

0.055

1.143

1.397

0.051 REF

1.295 REF

0.100 BSC

2.540 BSC

0.539

0.579

13.691

14.707

0.125 MAX

3.175 MAX

0.050 REF

1.270 REF

0.000

0.010

0.000

0.254

0.088

0.102

2.235

2.591

0.018

0.026

0.457

0.660

0.058

0.078

1.473

1.981

R
S

0.116 REF

2.946 REF

0.200 MIN

5.080 MIN

0.250 MIN

6.350 MIN

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MC7800/D

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: MC7809CT

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: MC7809CT