MC78L00, A

Series

Order this document by MC78L00/D

DEVICE TYPE/NOMINAL VOLTAGE

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SOP8)*

P SUFFIX

CASE 29

Pin 1. Vout

2. GND
3. GND
4. NC

5. NC
6. GND
7. GND
8. Vin

* SOP8 is an internally modified SO8 package.

Pins 2, 3, 6, and 7 are electrically common to the die
attach flag. This internal lead frame modification
decreases package thermal resistance and
increases power dissipation capability when
appropriately mounted on a printed circuit board.
SOP8 conforms to all external dimensions of the
standard SO8 package.

Pin 1. Output

2. GND
3. Input

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.

*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.

MC78LXX

Input

Cin*

0.33

CO**

Output

10%

Voltage

MC78L05C
MC78L08C
MC78L09C
MC78L12C
MC78L15C
MC78L18C
MC78L24C

MC78L05AC
MC78L08AC
MC78L09AC
MC78L12AC
MC78L15AC
MC78L18AC
MC78L24AC

5.0
8.0
9.0

12
15
18
24

MOTOROLA ANALOG IC DEVICE DATA

Three-Terminal Low Current

Positive Voltage Regulators

The MC78L00, A Series of positive voltage regulators are inexpensive,

easytouse devices suitable for a multitude of applications that require a
regulated supply of up to 100 mA. Like their higher powered MC7800 and
MC78M00 Series cousins, these regulators feature internal current limiting
and thermal shutdown making them remarkably rugged. No external
components are required with the MC78L00 devices in many applications.

These devices offer a substantial performance advantage over the

traditional zener dioderesistor combination, as output impedance and
quiescent current are substantially reduced.

Wide Range of Available, Fixed Output Voltages

Low Cost

Internal Short Circuit Current Limiting

Internal Thermal Overload Protection

No External Components Required

Complementary Negative Regulators Offered (MC79L00 Series)

Available in either

5% (AC) or

10% (C) Selections

Representative Schematic Diagram

15k

Input

Output

Ground

Q11

Q12

3.0

025k

2.85k

5.0k

Q10

3.8k

1.2k

1.9k

19k

2.2k

1.0k

420

ORDERING INFORMATION

Device

Operating

Temperature Range

Package

MC78LXXACD*

SOP8

MC78LXXACP

TJ = 0

to +125

Plastic Power

MC78LXXCP

Plastic Power

MC78LXXABD*

TJ = 40

to +125

SOP8

MC78LXXABP*

TJ = 40

to +125

Plastic Power

XX indicates nominal voltage
*Available in 5, 8, 9, 12 and 15 V devices.

Motorola, Inc. 1996

Rev 3

MC78L00, A Series

MOTOROLA ANALOG IC DEVICE DATA

MAXIMUM RATINGS

(TA = +125

C, unless otherwise noted.)

Rating

Symbol

Value

Unit

Input Voltage (2.6 V8.0 V)

Input Voltage

(12 V18 V)

Input Voltage

(24 V)

30
35
40

Vdc

Storage Temperature Range

Tstg

65 to +150

Operating Junction Temperature Range

0 to +150

ELECTRICAL CHARACTERISTICS

(VI = 10 V, IO = 40 mA, CI = 0.33

F, CO = 0.1

F, 40

C < TJ < +125

C (for MC78LXXAB),

C < TJ < +125

C (for MC78LXXAC), unless otherwise noted.)

MC78L05AC, AB

MC78L05C

Characteristics

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

Output Voltage (TJ = +25

4.8

5.0

5.2

4.6

5.0

5.4

Vdc

Line Regulation

(TJ = +25

C, IO = 40 mA)

7.0 Vdc

20 Vdc

8.0 Vdc

20 Vdc

Regline

55
45

150
100

55
45

200
150

Load Regulation

(TJ = +25

C, 1.0 mA

100 mA)

(TJ = +25

C, 1.0 mA

40 mA)

Regload

5.0

60
30

5.0

60
30

Output Voltage

(7.0 Vdc

20 Vdc, 1.0 mA

40 mA)

(VI = 10 V, 1.0 mA

70 mA)

4.75
4.75

5.25
5.25

4.5
4.5

5.5
5.5

Vdc

Input Bias Current

(TJ = +25

(TJ = +125

IIB

3.8

6.0
5.5

3.8

6.0
5.5

Input Bias Current Change

(8.0 Vdc

20 Vdc)

(1.0 mA

40 mA)

IIB

1.5
0.1

1.5
0.2

Output Noise Voltage

(TA = +25

C, 10 Hz

100 kHz)

Ripple Rejection (IO = 40 mA,

f = 120 Hz, 8.0 Vdc

18 V, TJ = +25

Dropout Voltage (TJ = +25

VI VO

1.7

Vdc

ELECTRICAL CHARACTERISTICS

(VI = 14 V, IO = 40 mA, CI = 0.33

F, CO = 0.1

F, 40

C < TJ < +125

C (for MC78LXXAB),

C < TJ < +125

C (for MC78LXXAC), unless otherwise noted.)

MC78L08AC, AB

MC78L08C

Characteristics

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

Output Voltage (TJ = +25

7.7

8.0

8.3

7.36

8.0

8.64

Vdc

Line Regulation

(TJ = +25

C, IO = 40 mA)

10.5 Vdc

23 Vdc

11 Vdc

23 Vdc

Regline

20
12

175
125

20
12

200
150

Load Regulation

(TJ = +25

C, 1.0 mA

100 mA)

(TJ = +25

C, 1.0 mA

40 mA)

Regload

8.0

80
40

6.0

80
40

Output Voltage

(10.5 Vdc

23 Vdc, 1.0 mA

40 mA)

(VI = 14 V, 1.0 mA

70 mA)

7.6
7.6

8.4
8.4

7.2
7.2

8.8
8.8

Vdc

Input Bias Current

(TJ = +25

(TJ = +125

IIB

3.0

6.0
5.5

3.0

6.0
5.5

Input Bias Current Change

(11 Vdc

23 Vdc)

(1.0 mA

40 mA)

IIB

1.5
0.1

1.5
0.2

Output Noise Voltage

(TA = +25

C, 10 Hz

100 kHz)

Ripple Rejection (IO = 40 mA,

f = 120 Hz, 12 V

23 V, TJ = +25

Dropout Voltage (TJ = +25

VI VO

1.7

Vdc

MC78L00, A Series

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS

(VI = 15 V, IO = 40 mA, CI = 0.33

F, CO = 0.1

F, 40

C < TJ < +125

C (for MC78LXXAB),

C < TJ < +125

C (for MC78LXXAC), unless otherwise noted.)

MC78L09AC, AB

MC78L09C

Characteristics

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

Output Voltage (TJ = +25

8.6

9.0

9.4

8.3

9.0

9.7

Vdc

Line Regulation

(TJ = +25

C, IO = 40 mA)

11.5 Vdc

24 Vdc

12 Vdc

24 Vdc

Regline

20
12

175
125

20
12

200
150

Load Regulation

(TJ = +25

C, 1.0 mA

100 mA)

(TJ = +25

C, 1.0 mA

40 mA)

Regload

8.0

90
40

6.0

90
40

Output Voltage

(11.5 Vdc

24 Vdc, 1.0 mA

40 mA)

(VI = 15 V, 1.0 mA

70 mA)

8.5
8.5

9.5
9.5

8.1
8.1

9.9
9.9

Vdc

Input Bias Current

(TJ = +25

(TJ = +125

IIB

3.0

6.0
5.5

3.0

6.0
5.5

Input Bias Current Change

(11 Vdc

23 Vdc)

(1.0 mA

40 mA)

IIB

1.5
0.1

1.5
0.2

Output Noise Voltage

(TA = +25

C, 10 Hz

100 kHz)

Ripple Rejection (IO = 40 mA,

f = 120 Hz, 13 V

24 V, TJ = +25

Dropout Voltage

(TJ = +25

VI VO

1.7

Vdc

ELECTRICAL CHARACTERISTICS

(VI = 19 V, IO = 40 mA, CI = 0.33

F, CO = 0.1

F, 40

C < TJ < +125

C (for MC78LXXAB),

C < TJ < +125

C (for MC78LXXAC), unless otherwise noted.)

MC78L12AC, AB

MC78L12C

Characteristics

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

Output Voltage (TJ = +25

11.5

12.5

11.1

12.9

Vdc

Line Regulation

(TJ = +25

C, IO = 40 mA)

14.5 Vdc

27 Vdc

16 Vdc

27 Vdc

Regline

120
100

250
200

120
100

250
200

Load Regulation

(TJ = +25

C, 1.0 mA

100 mA)

(TJ = +25

C, 1.0 mA

40 mA)

Regload

20
10

100

20
10

100

Output Voltage

(14.5 Vdc

27 Vdc, 1.0 mA

40 mA)

(VI = 19 V, 1.0 mA

70 mA)

11.4
11.4

12.6
12.6

10.8
10.8

13.2
13.2

Vdc

Input Bias Current

(TJ = +25

(TJ = +125

IIB

4.2

6.5
6.0

4.2

6.5
6.0

Input Bias Current Change

(16 Vdc

27 Vdc)

(1.0 mA

40 mA)

IIB

1.5
0.1

1.5
0.2

Output Noise Voltage

(TA = +25

C, 10 Hz

100 kHz)

Ripple Rejection (IO = 40 mA,

f = 120 Hz, 15 V

25 V, TJ = +25

Dropout Voltage

(TJ = +25

VI VO

1.7

Vdc

MC78L00, A Series

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS

(VI = 23 V, IO = 40 mA, CI = 0.33

F, CO = 0.1

F, 40

C < TJ < +125

C (for MC78LXXAB),

C < TJ < +125

C (for MC78LXXAC), unless otherwise noted.)

MC78L15AC, AB

MC78L15C

Characteristics

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

Output Voltage (TJ = +25

14.4

15.6

13.8

16.2

Vdc

Line Regulation

(TJ = +25

C, IO = 40 mA)

17.5 Vdc

30 Vdc

20 Vdc

30 Vdc

Regline

130

110

300
250

130

110

300
250

Load Regulation

(TJ = +25

C, 1.0 mA

100 mA)

(TJ = +25

C, 1.0 mA

40 mA)

Regload

25
12

150

25
12

150

Output Voltage

(17.5 Vdc

30 Vdc, 1.0 mA

40 mA)

(VI = 23 V, 1.0 mA

70 mA)

14.25
14.25

15.75
15.75

13.5
13.5

16.5
16.5

Vdc

Input Bias Current

(TJ = +25

(TJ = +125

IIB

4.4

6.5
6.0

4.4

6.5
6.0

Input Bias Current Change

(20 Vdc

30 Vdc)

(1.0 mA

40 mA)

IIB

1.5
0.1

1.5
0.2

Output Noise Voltage

(TA = +25

C, 10 Hz

100 kHz)

Ripple Rejection (IO = 40 mA,

f = 120 Hz, 18.5 V

28.5 V, TJ = +25

Dropout Voltage

(TJ = +25

VI VO

1.7

Vdc

ELECTRICAL CHARACTERISTICS

(VI = 27 V, IO = 40 mA, CI = 0.33

F, CO = 0.1

F, 0

C < TJ < +125

C, unless otherwise noted.)

MC78L18AC

MC78L18C

Characteristics

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

Output Voltage (TJ = +25

17.3

18.7

16.6

19.4

Vdc

Line Regulation

(TJ = +25

C, IO = 40 mA)

21.4 Vdc

33 Vdc

20.7 Vdc

33 Vdc

22 Vdc

33 Vdc

21 Vdc

33 Vdc

Regline

325

275

325

275

Load Regulation

(TJ = +25

C, 1.0 mA

100 mA)

(TJ = +25

C, 1.0 mA

40 mA)

Regload

30
15

170

30
15

170

Output Voltage

(21.4 Vdc

33 Vdc, 1.0 mA

40 mA)

(20.7 Vdc

33 Vdc, 1.0 mA

40 mA)

(VI = 27 V, 1.0 mA

70 mA)

(VI = 27 V, 1.0 mA

70 mA)

17.1

18.9

16.2

19.8

Vdc

Input Bias Current

(TJ = +25

(TJ = +125

IIB

3.1

6.5
6.0

3.1

6.5
6.0

Input Bias Current Change

(22 Vdc

33 Vdc)

(21 Vdc

33 Vdc)

(1.0 mA

40 mA)

IIB

1.5
0.1

1.5

0.2

Output Noise Voltage

(TA = +25

C, 10 Hz

100 kHz)

150

Ripple Rejection (IO = 40 mA,

f = 120 Hz, 23 V

33 V, TJ = +25

Dropout Voltage

(TJ = +25

VI VO

1.7

Vdc

MC78L00, A Series

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS

(VI = 33 V, IO = 40 mA, CI = 0.33

F, CO = 0.1

F, 0

C < TJ < +125

C, unless otherwise noted.)

MC78L24AC

MC78L24C

Characteristics

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

Output Voltage (TJ = +25

22.1

25.9

Vdc

Line Regulation

(TJ = +25

C, IO = 40 mA)

27.5 Vdc

38 Vdc

28 Vdc

80 Vdc

27 Vdc

38 Vdc

Regline

50
60

300
350

35
30

350
300

Load Regulation

(TJ = +25

C, 1.0 mA

100 mA)

(TJ = +25

C, 1.0 mA

40 mA)

Regload

40
20

200
100

40
20

200
100

Output Voltage

(28 Vdc

38 Vdc, 1.0 mA

40 mA)

(27 Vdc

38 Vdc, 1.0 mA

40 mA)

(28 Vdc

VI = 33 Vdc, 1.0 mA

70 mA)

(27 Vdc

33 Vdc, 1.0 mA

70 mA)

22.8

25.2

21.6

26.4

Vdc

Input Bias Current

(TJ = +25

(TJ = +125

IIB

3.1

6.5
6.0

3.1

6.5
6.0

Input Bias Current Change

(28 Vdc

38 Vdc)

(1.0 mA

40 mA)

IIB

1.5
0.1

1.5
0.2

Output Noise Voltage

(TA = +25

C, 10 Hz

100 kHz)

200

Ripple Rejection (IO = 40 mA,

f = 120 Hz, 29 V

35 V, TJ = +25

Dropout Voltage

(TJ = +25

VI VO

1.7

Vdc

MC78L00, A Series

MOTOROLA ANALOG IC DEVICE DATA

, POWER DISSIP

TION

(mW)

I IB

, INPUT

BIAS CURRENT

(mA)

I IB

, INPUT

BIAS CURRENT

(mA)

, OUTPUT

VOL

T
AGE

(V)

Figure 1. Dropout Characteristics

Figure 2. Dropout Voltage versus

Junction Temperature

Figure 3. Input Bias Current versus

Ambient Temperature

Figure 4. Input Bias Current

versus Input Voltage

Figure 5. Maximum Average Power Dissipation versus

Ambient Temperature TO92 Type Package

VI, INPUT VOLTAGE (V)

2.0

4.0

6.0

8.0

, INPUT/OUTPUT

DIFFERENTIAL

VOL

T
AGE (V)

TJ, JUNCTION TEMPERATURE (

100

125

V
V

Dropout of Regulation is

defined as when

VO = 2% of VO

TA, AMBIENT TEMPERATURE (

100

125

VI, INPUT VOLTAGE (V)

5.0

TA, AMBIENT TEMPERATURE (

100

125

150

No Heatsink

8.0

6.0

4.0

2.0

2.5

2.0

1.5

1.0

0.5

4.2

4.0

3.8

3.6

3.4

3.2

3.0

5.0

4.0

3.0

2.0

1.0

10,000

1000

100

MC78L05C

Vout = 5.0 V

TJ = 25

MC78L05C

Vout = 5.0 V

IO = 40 mA

TJ = 25

JA = 200

C/W

PD(max) to 25

C = 625 mW

IO = 1.0 mA

IO = 40 mA

IO = 100 mA

IO = 70 mA

IO = 1.0 mA

IO = 40 mA

MC78L05C
VI = 10 V

VO= 5.0 V

IO = 40 mA

110

130

150

0.4

0.8

1.2

1.6

2.0

2.4

2.8

L, LENGTH OF COPPER (mm)

170

3.2

PD(max) for TA = 50

,
THERMAL

RESIST

ANCE

JUNCTION-T

O-AIR ( C/W)

, MAXIMUM POWER DISSIP

TION (W)

ÎÎÎ

2.0 oz.

Copper

Graph represents symmetrical layout

3.0 mm

Figure 6. SOP8 Thermal Resistance and Maximum

Power Dissipation versus P.C.B. Copper Length

MC78L00, A Series

MOTOROLA ANALOG IC DEVICE DATA

APPLICATIONS INFORMATION

Design Considerations

The MC78L00 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 limits the
maximum current the circuit will pass.

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. The 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. Good construction techniques
should be used to minimize ground loops and lead resistance
drops since the regulator has no external sense lead.
Bypassing the output is also recommended.

Figure 7. Current Regulator

Figure 8.

15 V Tracking Voltage Regulator

Figure 9. Positive and Negative Regulator

The MC78L00 regulators can also be used as a current source
when connected as above. In order to minimize dissipation the
MC78L05C is chosen in this application. Resistor R determines
the current as follows:

For example, a 100 mA current source would require R to be a
50

, 1/2 W resistor and the output voltage compliance would be

the input voltage less 7 V.

IO =

5.0 V

+ IB

IIB = 3.8 mA over line and load changes

Input

0.33

MC78L05

Constant

Current to

Grounded Load

MC1741

+20V

0.33

MC78L15

+VO

10k

6.5

20V

MPS A70

MPS U55

0.33

+VI

MC78LXX

MC79LXX

+VO

0.33

0.1

MC78L00, A Series

MOTOROLA ANALOG IC DEVICE DATA

OUTLINE DIMENSIONS

P SUFFIX

PLASTIC PACKAGE

CASE 2904

ISSUE AD

D SUFFIX

PLASTIC PACKAGE

CASE 75105

(SOP8)

ISSUE R

SECTION XX

X X

SEATING
PLANE

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.
3. CONTOUR OF PACKAGE BEYOND DIMENSION R

IS UNCONTROLLED.

4. DIMENSION F APPLIES BETWEEN P AND L.

DIMENSION D AND J APPLY BETWEEN L AND K
MINIMUM. LEAD DIMENSION IS UNCONTROLLED
IN P AND BEYOND DIMENSION K MINIMUM.

DIM

MIN

MAX

MIN

MAX

MILLIMETERS

INCHES

0.175

0.205

4.45

5.20

0.170

0.210

4.32

5.33

0.125

0.165

3.18

4.19

0.016

0.022

0.41

0.55

0.016

0.019

0.41

0.48

0.045

0.055

1.15

1.39

0.095

0.105

2.42

2.66

0.015

0.020

0.39

0.50

0.500

12.70

0.250

6.35

0.080

0.105

2.04

2.66

0.100

2.54

0.115

2.93

0.135

3.43

SEATING
PLANE

0.25

C B

0.25

X 45

DIM

MIN

MAX

MILLIMETERS

1.35

1.75

0.10

0.25

0.35

0.49

0.18

0.25

4.80

5.00

1.27 BSC

3.80

4.00

5.80

6.20

0.40

1.25

0.25

0.50

NOTES:

1. DIMENSIONING AND TOLERANCING PER ASME

Y14.5M, 1994.

2. DIMENSIONS ARE IN MILLIMETERS.
3. DIMENSION D AND E DO NOT INCLUDE MOLD

PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE MOLD

PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS
OF THE B DIMENSION AT MAXIMUM MATERIAL
CONDITION.

0.10

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.

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ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,

INTERNET: http://DesignNET.com

51 Ting Kok Road, Tai Po, N.T., Hong Kong. 85226629298

MC78L00/D

*MC78L00/D*

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: MC78L15CP

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: MC78L15CP