Datasheet MC78M06 Datasheet (Fairchild Semiconductor)

©2002 Fairchild Semiconductor Corporation

www.fairchildsemi.com

Rev. 1.0.5

Features

• Output Current up to 0.5A

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

• Thermal Overload Protection

• Short Circuit Protection

• Output Transistor Safe Operating Area (SOA)Prote ction

Description

The MC78MXX/LM78MXX series of three-terminal
positive regulators are available in the TO-220/D-PAK
package with s everal fixed ou tput voltag es making it us eful
in a wide range of applications.

TO-220

D-PAK

1. Input 2. GND 3. Output

1

1

GND

GND

Internal Block Digram

OUTPUT

3

R1

R2

GND

2

1

INPUT

SERIES
PASS
ELEMENT

SOA
PROTECTION

CURRENT
GENERATOR

STARTING
CIRCUIT

REFERENCE
VOLTAGE

ERROR
AMPLIFIER

THERMAL
PROTECTION

MC78MXX/LM78MXX

3-Terminal 0.5A Positive Voltage Regulator

MC78MXX/LM78MXX

2

Absolute Maximum Ratings

Note:

1. Thermal resistance test board
Size: 76.2mm * 11 4.3mm * 1.6mm(1S0P)
JEDEC standard: JESD51-3, JESD51-7

2. Assume no ambient airflow

Electrical Characteristics (MC78M05/LM78M05)

(Refer to the test circuits, 0

<

T

J

<

+125°C, I

O

=350mA, VI=10V, unless otherwise specified, CI = 0.33µF, CO=0.1µF)

Note:

3. Load and line regulation are specified at constant junction temperature. Change in V

o

due to heating effects must be taken

into account separately. Pulse testing with low duty is used.

Parameter Symbol Value Unit

Input Voltage (for V

O

= 5V to 18V)

(for V

O

= 24V)

V

I

V

I

35
40

V
V

Thermal Resistance Junction-Case (Note1)
TO-220 (Tc = +25°C)

R

θJC

2.5 °C/W

Thermal Resistance Junction-Air (Note1, 2)
TO-220 (Ta = +25°C)
D-PAK (Ta = +25°C)

R

θJA

66
92

°C/W

Operating Junction Temperature Range T

OPR

0 ~ +150 °C

Storage Temperature Range T

STG

-65 ~ +150 °C

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ = +25°C 4.855.2

V

I

O

= 5mA to 350mA

V

I

= 7V to 20V

4.75 5 5.25

Line Regulation (Note3) ∆V

O

IO = 200mA
T

J

=+25°C

V

I

= 7V to 25V - - 100

mV

V

I

= 8V to 25V - - 50

Load Regulation (Note3) ∆V

O

IO = 5mA to 0.5A, TJ =+25°C - - 100

mV

I

O

= 5mA to 200mA, TJ =+25 °C- - 50

Quiescent Current I

Q

TJ =+25°C-4.06.0mA

Quiescent Current Change ∆I

Q

IO = 5mA to 350mA - - 0.5

mA

I

O

= 200mA

V

I

= 8V to 25V

--0.8

Output Voltage Drift ∆V/∆T

I

O

= 5mA

T

J

= 0 to +125°C

--0.5-mV/°C

Output Noise Voltage V

N

f = 10Hz to 100kHz - 40 -

µ

V/Vo

Ripple Rejection RR

f = 120Hz, I

O

= 300mA

V

I

= 8V to 18V, TJ =+25 °C

-80- dB

Dropout Voltage V

D

TJ =+25°C, IO = 500mA - 2 - V

Short Circuit Current I

SC

TJ =+25°C, VI = 35V - 300 - mA

Peak Current I

PK

TJ =+25°C - 700 - mA

MC78MXX/LM78MXX

3

Electrical Characteristics (MC78M06)

(Continued)

(Refer to the test circuits, 0

< TJ < +125°C, IO=350mA, VI =11V, unless otherwise specified, CI=0.33µF, CO=0.1µF)

Note:

1. Load and line regulation are specified at constant junction temperature. Change in V

o

due to heating effects must be taken

into account separately. Pulse testing with low duty is used.

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ = +25°C 5.75 6 6.25

V

I

O

= 5mA to 350mA

V

I

= 8V to 21V

5.7 6 6.3

Line Regulation (Note1) ∆V

O

IO = 200mA
T

J

= +25°C

V

I

= 8V to 25V - - 100

mV

V

I

= 9V to 25V - - 50

Load Regulation (Note1) ∆V

O

IO = 5mA to 0.5A, TJ = +25°C - - 120

mV

I

O

= 5mA to 200mA, TJ = +25°C- -60

Quiescent Current I

Q

TJ = +25°C-4.06.0mA

Quiescent Current Change ∆I

Q

IO = 5mA to 350mA - - 0.5

mA

I

O

= 200mA

V

I

= 9V to 25V

--0.8

Output Voltage Drift ∆V/∆T

I

O

= 5mA

T

J

= 0 to +125°C

--0.5-mV/°C

Output Noise Voltage V

N

f = 10Hz to 100kHz - 45 -

µ

V/Vo

Ripple Rejection RR

f = 120Hz, I

O

= 300mA

V

I

= 9V to 19V, TJ =+25 °C

-80-dB

Dropout Voltage V

D

TJ =+25°C, IO = 500mA - 2 - V

Short Circuit Current I

SC

TJ = +25°C, VI= 35V - 300 - mA

Peak Current I

PK

TJ =+25°C - 700 - mA

MC78MXX/LM78MXX

4

Electrical Characteristics (MC78M08)

(Continued)

(Refer to the test circuits, 0

< TJ < +125°C, IO=350mA, VI=14V, unless otherwise specified, CI = 0.33µF, CO=0.1µF)

Note:

1. Load and line regulation are specified at constant junction temperature. Change in V

O

due to heating effects must be taken

into account separately. Pulse testing with low duty is used.

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ =+25°C7.788.3

V

I

O

= 5mA to 350mA

V

I

= 10.5V to 23V

7.6 8 8.4

Line Regulation (Note1) ∆V

O

IO = 200mA
T

J

=+25°C

V

I

= 10.5V to 25V - - 100

mV

V

I

= 11V to 25V - - 50

Load Regulation (Note1) ∆V

O

IO = 5mA to 0.5A, TJ =+25°C - - 160

mV

I

O

= 5mA to 200mA, TJ =+25°C--80

Quiescent Current I

Q

TJ = +25°C-4.06.0mA

Quiescent Current Change ∆I

Q

IO = 5mA to 350mA - - 0.5

mA

I

O

= 200mA

V

I

= 10.5V to 25V

--0.8

Output Voltage Drift RR

I

O

= 5mA

T

J

= 0 to +125°C

- −0.5 - mV/°C

Output Noise Voltage V

N

f = 10Hz to 100kHz - 52 -

µ

V/Vo

Ripple Rejection RR

f = 120Hz, I

O

= 300mA

V

I

= 11.5V to 21.5V, TJ =+25 °C

-80-dB

Dropout Voltage V

D

TJ = +25°C, IO = 500mA - 2 - V

Short Circuit Current I

SC

TJ = +25°C, VI = 35V - 300 - mA

Peak Current I

PK

TJ = +25°C - 700 - mA

MC78MXX/LM78MXX

5

Electrical Characteristics (MC78M12)

(Continued)

(Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI=19V, unless otherwise specified, CI =0.33µF, CO=0.1µF)

Note:

1. Load and line regulation are specified at constant junction temperature. Change in V

o

due to heating effects must be taken

into account separately. Pulse testing with low duty is used.

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ = +25°C 11.5 12 12.5

V

I

O

= 5mA to 350mA

V

I

= 14.5V to 27V

11.4 12 12.6

Line Regulation (Note1) ∆V

O

IO = 200mA
T

J

= +25°C

V

I

= 14.5V to 30V - - 100

mV

V

I

= 16V to 30V - - 50

Load Regulation (Note1) ∆V

O

IO = 5mA to 0.5A, TJ = +25°C - - 240

mV

I

O

= 5mA to 200mA, TJ = +25°C - - 120

Quiescent Current I

Q

TJ =+25°C-4.16.0mA

Quiescent Current Change ∆I

Q

IO = 5mA to 350mA - - 0.5

mA

I

O

= 200mA

V

I

= 14.5V to 30V

--0.8

Output Voltage Drift ∆V/∆T

I

O

= 5mA

T

J

= 0 to +125°C

--0.5-mV/°C

Output Noise Voltage V

N

f = 10Hz to 100kHz - 75 -

µ

V/Vo

Ripple Rejection RR

f = 120Hz, I

O

= 300mA

V

I

= 15V to 25V, TJ =+25 °C

-80-dB

Dropout Voltage V

D

TJ =+25°C, IO = 500mA - 2 - V

Short Circuit Current I

SC

TJ = +25°C, VI = 35V - 300 - mA

Peak Current I

PK

TJ = +25°C - 700 - mA

MC78MXX/LM78MXX

6

Electrical Characteristics (MC78M15)

(Continued)

(Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI=23V, unless otherwise specified, CI =0.33µF, CO=0.1µF)

Note:

1. Load and line regulation are specified at constant junction temperature. Change in V

O

due to heating effects must be taken

into account separately. Pulse testing with low duty is used.

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ = +25°C 14.4 15 15.6

V

I

O

= 5mA to 350mA

V

I

= 17.5V to 30V

14.25 15 15.75

Line Regulation (Note1) ∆V

O

IO = 200mA
T

J

=+25°C

V

I

= 17.5V to 30V - - 100

mV

V

I

= 20V to 30V - - 50

Load Regulation (Note1) ∆V

O

IO = 5mA to 0.5A, TJ =+25°C - - 300

mV

I

O

= 5mA to 200mA, TJ =+25°C - - 150

Quiescent Current I

Q

TJ = +25°C-4.16.0mA

Quiescent Current Change ∆I

Q

IO = 5mA to 350mA - - 0.5

mA

I

O

= 200mA

V

I

= 17.5V to 30V

--0.8

Output Voltage Drift ∆V/∆T

I

O

= 5mA

T

J

= 0 to +125°C

--1 -mV/°C

Output Noise Voltage V

N

f = 10Hz to 100kHz - 100 -

µ

V/Vo

Ripple Rejection RR

f = 120Hz, I

O

= 300mA

V

I

= 18.5V to 28.5V, TJ =+25 °C

-70 - dB

Dropout Voltage V

D

TJ =+25°C, IO = 500mA - 2 - V

Short Circuit Current I

SC

TJ = +25°C, VI = 35V - 300 - mA

Peak Current I

PK

TJ = +25°C - 700 - mA

MC78MXX/LM78MXX

7

Electrical Characteristics (MC78M18)

(Continued)

(Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI=26V, unless otherwise specified, CI =0.33µF, CO=0.1µF)

Note:

1. Load and line regulation are specified at constant junction temperature. Change in V

O

due to heating effects must be taken

into account separately. Pulse testing with low duty is used.

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ = +25°C 17.3 18 18.7

V

I

O

= 5mA to 350mA

V

I

= 20.5V to 33V

17.1 18 18.9

Line Regulation (Note1) ∆V

O

IO = 200mA
T

J

= +25°C

V

I

= 21V to 33V - - 100

mV

V

I

= 24V to 33V - - 50

Load Regulation (Note1) ∆VΟ

I

O

= 5mA to 0.5A, TJ = +25°C - - 360

mV

I

O

= 5mA to 200mA, TJ = +25°C - - 180

Quiescent Current I

Q

TJ = +25°C-4.26.0mA

Quiescent Current Change ∆I

Q

IO = 5mA to 350mA - - 0.5

mA

I

O

= 200mA

V

I

= 21V to 33V

--0.8

Output Voltage Drift ∆V/∆TI

O

= 5mATJ = 0 to 125°C--1.1-mV/°C

Output Noise Voltage V

N

f = 10Hz to 100kHz - 100 - µV/Vo

Ripple Rejection RR

f = 120Hz, I

O

= 300mA , VI = 22V to 32V

T

J

=+25 °C

-70- dB

Dropout Voltage V

D

TJ = +25°C, I

O

= 500mA - 2 - V

Short Circuit Current I

SC

TJ = +25°C, VI = 35V - 300 - mA

Peak Current I

PK

TJ = +25°C - 700 - mA

MC78MXX/LM78MXX

8

Electrical Characteristics (MC78M24)

(Continued)

(Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI=33V, unless otherwise specified, CI =0.33µF, CO=0.1µF)

Note:

1. Load and line regulation are specified at constant junction temperature. Change in V

O

due to heating effects must be taken

into account separately. Pulse testing with low duty is used.

Parameter Symbol Conditions Min. Typ. Max. Unit

Output Voltage V

O

TJ =+25°C232425

V

I

O

= 5mA to 350mA

V

I

= 27V to 38V

22.8 24 25.2

Line Regulation (Note1) ∆V

O

IO = 200mA
T

J

=+25°C

V

I

= 27V to 38V - - 100

mV

V

I

= 28V to 38V - - 50

Load Regulation (Note1) ∆V

O

IO = 5mA to 0.5A, TJ =+25°C - - 480

mV

I

O

= 5mA to 200mA, TJ =+25°C - - 240

Quiescent Current I

Q

TJ = +25°C-4.26.0mA

Quiescent Current Change ∆I

Q

IO = 5mA to 350mA - - 0.5

mA

I

O

= 200mA

V

I

= 27V to 38V

--0.8

Output Voltage Drift ∆V/∆T

I

O

= 5mA

T

J

= 0 to +125°C

--1.2-mV/°C

Output Noise Voltage V

N

f = 10Hz to 100kHz - 170 -

µ

V/Vo

Ripple Rejection RR

f = 120Hz, I

O

= 300mA

V

I

= 28V to 38V, TJ =+25 °C

-70- dB

Dropout Voltage V

D

TJ = +25°C, IO = 500mA - 2 - V

Short Circuit Current I

SC

TJ = +25°C, VI = 35V - 300 - mA

Peak Current I

PK

TJ = +25°C - 700 - mA

MC78MXX/LM78MXX

9

Typical Applications

Figure 1. Fixed Output Regulator

Figure 2. Constant Current Regulator

Notes:

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

2. Although no output capacitor is needed for stability, it does improve transient response.

3. C

I

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

Figure 3. Circuit f or Increasing Output Voltage

0.1µF

C

O

C

I

0.3µF

V

O

V

I

MC78MXX
LM78MXX

1

3

2

0.1µF

C

O

C

I

0.33µF

I

O

V

I

MC78MXX
LM78MXX

1

3

2

VXX

I

O

R

1

IO =

R

1

+I

O

Vxx

0.1µF

C

O

C

I

0.33µF

I

O

V

I

MC78MXX
LM78MXX

1

3

2

V

XX

V

O

R

1

R

2

IR1 ≥ 5I

O

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

2

MC78MXX/LM78MXX

10

Figure 4. Adjustable Output Regulator (7 to 30V)

Figure 5. 0.5 to 10V Regulator

0.1µF

C

O

C

I

0.33µF

V

O

V

I

MC78M05
LM78M05

1

3

2

10kΩ

3

2

4

7

6

LM741

0.1µF

C2

C1

0.33µF

V

O

V

I

MC78M05
LM78M05

1

3

2

10kΩ

3

2

4

7

6

LM741

R3
R1

VXX

R4

R5

910Ω

9.1kΩ

13V < VI < 25V

-7 < -VI

< 17V

_

+

VO = Vxx

R

1

R

4

MC78MXX/LM78MXX

11

Mechanical Dimensions

Package

Dimensions in millimeters

4.50 ±0.20

9.90 ±0.20

1.52 ±0.10

0.80 ±0.10

2.40 ±0.20

10.00 ±0.20

1.27 ±0.10

ø3.60 ±0.10

(8.70)

2.80 ±0.1015.90 ±0.20

10.08 ±0.30

18.95MAX.

(1.70)

(3.70)(3.00)

(1.46)

(1.00)

(45°)

9.20 ±0.2013.08 ±0.20

1.30 ±0.10

1.30

+0.10
–0.05

0.50

+0.10
–0.05

2.54TYP

[2.54

±0.20]

2.54TYP

[2.54

±0.20]

TO-220

MC78MXX/LM78MXX

12

Mechanical Dimensions

(Continued)

Package

Dimensions in millimeters

6.60 ±0.20

2.30 ±0.10

0.50 ±0.10

5.34 ±0.30

0.70 ±0.20

0.60 ±0.20

0.80 ±0.20

9.50 ±0.30

6.10 ±0.20

2.70 ±0.20

9.50 ±0.30

6.10 ±0.20

2.70 ±0.20
MIN0.55

0.76 ±0.10

0.50 ±0.10

1.02 ±0.20

2.30 ±0.20

6.60 ±0.20

0.76 ±0.10

(5.34)

(1.50)

(2XR0.25)

(5.04)

0.89 ±0.10

(0.10) (3.05)

(1.00)

(0.90)

(0.70)

0.91

±0.10

2.30TYP

[2.30±0.20]

2.30TYP

[2.30±0.20]

MAX0.96

(4.34)(0.50) (0.50)

D-PAK

MC78MXX/LM78MXX

13

Ordering Information

Product Number Package Operating Temperature

LM78M05CT TO-220 0 ~ +125°C

Product Number Package Operating Temperature

MC78M05CT

TO-220

0 ~ +125°C

MC78M06CT
MC78M08CT
MC78M12CT
MC78M15CT
MC78M18CT
MC78M24CT

MC78M05CDT

D-PAK

MC78M06CDT
MC78M08CDT
MC78M12CDT

MC78MXX/LM78MXX

11/12/02 0.0m 001

Stock#DSxxxxxxxx

 2002 Fairchild Semiconductor Corporation

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CORPORATION. As used herein :

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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.

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PRODUCTS HEREI N TO IMPROVE RELIABILITY, FUNCTION OR DES IGN. FAIRCHILD DOES NOT ASSUME ANY
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