Datasheet AN78M08F, AN78M08, AN78M07F, AN78M07, AN78M06F Datasheet (Panasonic)

AN78M00/AN78M00F Series

3-pin Positive Output Voltage Regulators (500mA Type)

■ Overview

The AN78M00 and the AN78M00F series are 3-pin
fixed positive output voltage regulators. Stabilized fixed
output voltage is obtained from unstable DC input volt­age without using any external components. 11 types of
fixed output v oltage are av ailable;5V, 6V, 7V, 8V, 9V, 10V ,
12V, 15V, 18V, 20V and 24V. They can be used widely in
power circuits with current capacitance up to 500mA.

■ Features

• No external components

• Output voltage:5V, 6V, 7V, 8V, 9V, 10V, 12V,
15V, 18V, 20V, 24V

• Short-circuit current limiting built-in

• Thermal overload protection built-in

• Output transistor safe area compensation

10.5±0.5

10.4±0.5

ø5.3
(4.3)

16.7±0.3

13.6±0.25

TO-220 Full Pack Package (HSIP003-P-0000A)

ø3.7

6.7±0.258.7±0.313.6±0.25

4.5

1.4±0.25

0.8±0.2

0.45

ø3.1±0.1

1.4±0.2

0.8±0.2

(0.4)

2.0±0.25

17.0±0.25

+0.1
– 0.05

2.54

123

JEDEC:TO-220AB (HSIP003-P-0000)

10.5±0.3

4.5±0.25

2.54

123

4.5±0.3

4.5±0.3

1.4±0.1

2.9±0.1

2.5±0.25

1:Input
2:Common
3:Output

Unit:mmAN78M00F Series

2.77±0.3
(1.73)

3.8±0.25

+0.1
– 0.05

0.4

2.5±0.25

1:Input
2:Common
3:Output

Unit:mmAN78M00 Series

4.2±0.25

8.7±0.3

■ Block Diagram

Starter

Voltage
Reference

Current
Source

+

Error Amp.

–

Current
Limiter

Thermal
Protection

Pass Tr

Q

R

R

R

1

1

SC

3

2

1

2

Input

Output

Common

■ Absolute Maximum Ratings (Ta=25˚C)

Parameter Symbol Rating Unit

1

*

Input voltage

Power dissipation

AN7800 Series

AN7800F Series
Operating ambient temperature
Storage temperature

*

1 AN78M05/F, AN78M06/F, AN78M07/F, AN78M08/F, AN78M09/F, AN78M10/F, AN78M12/F, AN78M15/F, AN78M18/F

*

2 AN78M20/F, AN78M24/F

*

3 Follow the derating curve. When T

exceeds 150˚C, the internal circuit cuts off the output.

j

V

I

P

D

T

opr

T

stg

35

2

*

40

3

*

15

3

*

10.25

–20 to +80

–55 to +150

■ Electrical Characteristics (Ta=25˚C)

AN78M05/78M05F (5V Type)

·

Parameter Symbol Condition min typ max Unit

Output voltage
Output voltage tolerance

Line regulation

Load regulation

Bias current
Input bias current fluctuation
Load bias current fluctuation
Output noise voltage
Ripple rejection ratio
Minimum input/output voltage difference
Output short circuit current
Peak output current
Output voltage temperature coefficient

Note 1) The specified condition T

=25˚C means that the test should be carried out with the test time so short (within 10ms) that the

j

REG

REG

∆I

∆I

V

DIF (min.)

I

O (Short)

I

O (Peak)

∆V

V

O

V

O

I

bias

bias (IN)

bias (L)

V

no

RR

/Ta

O

drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=10V, IO=350mA, CI=0.33µF and CO=0.1µF.

*

AN78M00 Series:15W, AN78M00F Series:10.25W

=25˚C

T

j

=7.5 to 20V, IO=5 to 350mA,

V

I

=25˚C, P

T

j

=7.5 to 25V, Tj=25˚C

V

I

IN

=8 to 25V, Tj=25˚C

V

I

=5 to 500mA, Tj=25˚C

I

O

L

=5 to 200mA, Tj=25˚C

I

O

=25˚C

T

j

=8 to 25V, Tj=25˚C

V

I

D

<

*

=

IO=5 to 350mA, Tj=25˚C
f=10Hz to 100kHz
VI=8 to 18V, IO=100mA, f=120Hz

=500mA, Tj=25˚C

I

O

=35V, Tj=25˚C

V

I

Tj=25˚C
IO=5mA, Tj=0 to 125˚C

4.8

4.75

1

10

40

62

– 0.5

5.2 V5

5.25
100 mV3

50

100

50

0.8

0.5

6

V
V

W

˚C
˚C

V

mV
mV20
mV
mA4
mA
mA
µV

dB

V2
mA300
mA700

mV/˚C

■ Electrical Characteristics (Ta=25˚C)

AN78M06/78M06F (6V Type)

·

Parameter Symbol Condition min typ max Unit

Output voltage
Output voltage tolerance

Line regulation

Load regulation

Bias current
Input bias current fluctuation
Load bias current fluctuation
Output noise voltage
Ripple rejection ratio
Minimum input/output voltage difference
Output short circuit current
Peak output current
Output voltage temperature coefficient

Note 1) The specified condition T

=25˚C means that the test should be carried out with the test time so short (within 10ms) that the

j

REG

REG

∆I

∆I

V

DIF (min.)

I

O (Short)

I

O (Peak)

∆V

V

O

V

O

I

bias

bias (IN)

bias (L)

V

no

RR

/Ta

O

drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=11V, IO=350mA, CI=0.33µF and CO=0.1µF.

*

AN78M00 Series:15W, AN78M00F Series:10.25W

=25˚C

T

j

VI=8.5 to 21V, IO=5 to 350mA,
Tj=25˚C, P

=8.5 to 25V, Tj=25˚C

V

I

IN

=9 to 25V, Tj=25˚C

V

I

=5 to 500mA, Tj=25˚C

I

O

L

=5 to 200mA, Tj=25˚C

I

O

=25˚C

T

j

=9 to 25V, Tj=25˚C

V

I

=5 to 350mA, Tj=25˚C

I

O

D

<

*

=

f=10Hz to 100kHz
VI=9 to 19V, IO=100mA, f=120Hz

=500mA, Tj=25˚C

I

O

=35V, Tj=25˚C

V

I

Tj=25˚C
IO=5mA, Tj=0 to 125˚C

5.75

5.7

59

1.5

– 0.5

6.25 V6

6.3

V

100 mV5

mV

50

60

0.8

0.5

mV20
mV
mA4

6

mA
mA
µV

120

10

45

dB

V2
mA300
mA700

mV/˚C

AN78M07/78M07F (7V Type)

·

Parameter Symbol Condition min typ max Unit

Output voltage
Output voltage tolerance

Line regulation

Load regulation

Bias current
Input bias current fluctuation
Load bias current fluctuation
Output noise voltage
Ripple rejection ratio
Minimum input/output voltage difference
Output short circuit current
Peak output current
Output voltage temperature coefficient

Note 1) The specified condition T

=25˚C means that the test should be carried out with the test time so short (within 10ms) that the

j

REG

REG

∆I

∆I

V

DIF (min.)

I

O (Short)

I

O (Peak)

∆V

V

O

V

O

I

bias

bias (IN)

bias (L)

V

no

RR

/Ta

O

=25˚C

T

j

=9.5 to 22V, IO=5 to 350mA,

V

I

=25˚C, P

T

j

=9.5 to 25V, Tj=25˚C

V

I

IN

=10 to 25V, Tj=25˚C

V

I

=5 to 500mA, Tj=25˚C

I

O

L

=5 to 200mA, Tj=25˚C

I

O

=25˚C

T

j

=10 to 25V, Tj=25˚C

V

I

=5 to 350mA, Tj=25˚C

I

O

D

<

*

=

f=10Hz to 100kHz
VI=10 to 20V, IO=100mA, f=120Hz

=500mA, Tj=25˚C

I

O

=35V, Tj=25˚C

V

I

Tj=25˚C
IO=5mA, Tj=0 to 125˚C

drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=12V, IO=350mA, CI=0.33µF and CO=0.1µF.

*

AN78M00 Series:15W, AN78M00F Series:10.25W

6.7

6.65

57

– 0.5

7.3 V7

7.35

V

100 mV6

50

70

0.8

0.5

mV
mV20
mV
mA4

6

mA
mA
µV

2

140

10

48

dB

V2
mA300
mA700

mV/˚C

■ Electrical Characteristics (Ta=25˚C)

AN78M08/78M08F (8V Type)

·

Parameter Symbol Condition min typ max Unit

Output voltage
Output voltage tolerance

Line regulation

Load regulation

Bias current
Input bias current fluctuation
Load bias current fluctuation
Output noise voltage
Ripple rejection ratio
Minimum input/output voltage difference
Output short circuit current
Peak output current
Output voltage temperature coefficient

Note 1) The specified condition T

=25˚C means that the test should be carried out with the test time so short (within 10ms) that the

j

REG

REG

∆I

∆I

V

DIF (min.)

I

O (Short)

I

O (Peak)

∆V

V

O

V

O

I

bias

bias (IN)

bias (L)

V

no

RR

/Ta

O

drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=14V, IO=350mA, CI=0.33µF and CO=0.1µF.

*

AN78M00 Series:15W, AN78M00F Series:10.25W

=25˚C

T

j

VI=10.5 to 23V, IO=5 to 350mA,
Tj=25˚C, P

=10.5 to 25V, Tj=25˚C

V

I

IN

=11 to 25V, Tj=25˚C

V

I

=5 to 500mA, Tj=25˚C

I

O

L

=5 to 200mA, Tj=25˚C

I

O

=25˚C

T

j

=10.5 to 25V, Tj=25˚C

V

I

=5 to 350mA, Tj=25˚C

I

O

D

<

*

=

f=10Hz to 100kHz
VI=11.5 to 21.5V, IO=100mA, f=120Hz

=500mA, Tj=25˚C

I

O

=35V, Tj=25˚C

V

I

Tj=25˚C
IO=5mA, Tj=0 to 125˚C

7.7

7.6

56

– 0.5

8.3 V8

8.4

V

100 mV6

50

80

0.8

0.5

mV
mV25
mV
mA4.1

6

mA
mA
µV

2

160

10

52

dB

V2
mA300
mA700

mV/˚C

AN78M09/78M09F (9V Type)

·

Parameter Symbol Condition min typ max Unit

Output voltage
Output voltage tolerance

Line regulation

Load regulation

Bias current
Input bias current fluctuation
Load bias current fluctuation
Output noise voltage
Ripple rejection ratio
Minimum input/output voltage difference
Output short circuit current
Peak output current
Output voltage temperature coefficient

Note 1) The specified condition T

=25˚C means that the test should be carried out with the test time so short (within 10ms) that the

j

REG

REG

∆I

∆I

V

DIF (min.)

I

O (Short)

I

O (Peak)

∆V

V

O

V

O

I

bias

bias (IN)

bias (L)

V

no

RR

/Ta

O

=25˚C

T

j

VI=11.5 to 24V, IO=5 to 350mA,
Tj=25˚C, P

=11.5 to 25V, Tj=25˚C

V

I

IN

=12 to 25V, Tj=25˚C

V

I

=5 to 500mA, Tj=25˚C

I

O

L

=5 to 200mA, Tj=25˚C

I

O

=25˚C

T

j

=12 to 25V, Tj=25˚C

V

I

=5 to 350mA, Tj=25˚C

I

O

D

<

*

=

f=10Hz to 100kHz
VI=12 to 22V, IO=100mA, f=120Hz

=500mA, Tj=25˚C

I

O

=35V, Tj=25˚C

V

I

Tj=25˚C
IO=5mA, Tj=0 to 125˚C

drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=15V, IO=350mA, CI=0.33µF and CO=0.1µF.

*

AN78M00 Series:15W, AN78M00F Series:10.25W

8.65

8.55

9.35 V9

9.45

V

100 mV7

50

90

0.8

0.5

mV
mV25
mV
mA4.1

6

mA
mA
µV

dB

2

180

10

60

56

V2
mA300
mA700

– 0.5

mV/˚C

■ Electrical Characteristics (Ta=25˚C)

AN78M10/78M10F (10V Type)

·

Parameter Symbol Condition min typ max Unit

Output voltage
Output voltage tolerance

Line regulation

Load regulation

Bias current
Input bias current fluctuation
Load bias current fluctuation
Output noise voltage
Ripple rejection ratio
Minimum input/output voltage difference
Output short circuit current
Peak output current
Output voltage temperature coefficient

Note 1) The specified condition T

=25˚C means that the test should be carried out with the test time so short (within 10ms) that the

j

REG

REG

∆I

∆I

V

DIF (min.)

I

O (Short)

I

O (Peak)

∆V

V

O

V

O

I

bias

bias (IN)

bias (L)

V

no

RR

/Ta

O

drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=16V, IO=350mA, CI=0.33µF and CO=0.1µF.

*

AN78M00 Series:15W, AN78M00F Series:10.25W

=25˚C

T

j

VI=12.5 to 25V, IO=5 to 350mA,
Tj=25˚C, P

=12.5 to 30V, Tj=25˚C

V

I

IN

=13 to 25V, Tj=25˚C

V

I

=5 to 500mA, Tj=25˚C

I

O

L

=5 to 200mA, Tj=25˚C

I

O

=25˚C

T

j

=13 to 25V, Tj=25˚C

V

I

=5 to 350mA, Tj=25˚C

I

O

D

<

*

=

f=10Hz to 100kHz
VI=13 to 23V, IO=100mA, f=120Hz

=500mA, Tj=25˚C

I

O

=35V, Tj=25˚C

V

I

Tj=25˚C
IO=5mA, Tj=0 to 125˚C

9.6

9.5

10.4 V10

10.5

V

100 mV7

50

0.8

0.5

mV
mV25
mV

6

mA4.1
mA
mA
µV

dB

2

200
100

10

65

56

V2
mA300
mA700

– 0.5

mV/˚C

AN78M12/78M12F (12V Type)

·

Parameter Symbol Condition min typ max Unit

Output voltage
Output voltage tolerance

Line regulation

Load regulation

Bias current
Input bias current fluctuation
Load bias current fluctuation
Output noise voltage
Ripple rejection ratio
Minimum input/output voltage difference
Output short circuit current
Peak cutput current
Output voltage temperature coefficient

Note 1) The specified condition T

=25˚C means that the test should be carried out with the test time so short (within 10ms) that the

j

REG

REG

∆I
∆I

V

DIF (min.)

I

O (Short)

I

O (Peak)

∆V

V

O

V

O

I

bias

bias (IN)

bias (L)

V

no

RR

/Ta

O

=25˚C

T

j

VI=14.5 to 27V, IO=5 to 350mA,
Tj=25˚C, P

=14.5 to 30V, Tj=25˚C

V

I

IN

=16 to 30V, Tj=25˚C

V

I

=5 to 500mA, Tj=25˚C

I

O

L

=5 to 200mA, Tj=25˚C

I

O

=25˚C

T

j

=14.5 to 30V, Tj=25˚C

V

I

=5 to 350mA, Tj=25˚C

I

O

D

<

*

=

f=10Hz to 100kHz
VI=15 to 25V, IO=100mA, f=120Hz

=500mA, Tj=25˚C

I

O

=35V, Tj=25˚C

V

I

Tj=25˚C
IO=5mA, Tj=0 to 125˚C

drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=19V, IO=350mA, CI=0.33µF and CO=0.1µF.

*

AN78M00 Series:15W, AN78M00F Series:10.25W

11.5

11.4

12.5 V12

12.6

V

100 mV8

50

0.8

0.5

mV
mV25
mV
mA4.3

6

mA
mA
µV

dB

2

240
120

10

75

55

V2
mA300
mA700

– 0.8

mV/˚C

■ Electrical Characteristics (Ta=25˚C)

AN78M15/78M15F (15V Type)

·

Parameter Symbol Condition min typ max Unit

Output voltage
Output voltage tolerance

Line regulation

Load regulation

Bias current
Input bias current fluctuation
Load bias current fluctuation
Output noise voltage
Ripple rejection ratio
Minimum input/output voltage difference
Output short circuit current
Peak output current
Output voltage temperature coefficient

Note 1) The specified condition T

=25˚C means that the test should be carried out with the test time so short (within 10ms) that the

j

REG

REG

∆I
∆I

V

DIF (min.)

I

O (Short)

I

O (Peak)

∆V

V

O

V

O

I

bias

bias (IN)

bias (L)

V

no

RR

/Ta

O

drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=23V, IO=350mA, CI=0.33µF and CO=0.1µF.

*

AN78M00 Series:15W, AN78M00F Series:10.25W

=25˚C

T

j

VI=17.5 to 30V, IO=5 to 350mA,
Tj=25˚C, P

=17.5 to 30V, Tj=25˚C

V

I

IN

=20 to 30V, Tj=25˚C

V

I

=5 to 500mA, Tj=25˚C

I

O

L

=5 to 200mA, Tj=25˚C

I

O

=25˚C

T

j

=17.5 to 30V, Tj=25˚C

V

I

=5 to 350mA, Tj=25˚C

I

O

D

<

*

=

f=10Hz to 100kHz
VI=18.5 to 28.5V, IO=100mA, f=120Hz

=500mA, Tj=25˚C

I

O

=35V, Tj=25˚C

V

I

Tj=25˚C
IO=5mA, Tj=0 to 125˚C

14.4

14.25

15.6 V15

15.75

V

100 mV10

50

0.8

0.5

mV
mV25
mV
mA4.3

6

mA
mA
µV

dB

3

300
150

10

90

54

V2
mA300
mA700

–1

mV/˚C

AN78M18/78M18F (18V Type)

·

Parameter Symbol Condition min typ max Unit

Output voltage
Output voltage tolerance

Line regulation

Load regulation

Bias current
Input bias current fluctuation
Load bias current fluctuation
Output noise voltage
Ripple rejection ratio
Minimum input/output voltage difference
Output short circuit current
Peak output current
Output voltage temperature coefficient

Note 1) The specified condition T

=25˚C means that the test should be carried out with the test time so short (within 10ms) that the

j

REG

REG

∆I
∆I

V

DIF (min.)

I

O (Short)

I

O (Peak)

∆V

V

O

V

O

I

bias

bias (IN)

bias (L)

V

no

RR

/Ta

O

=25˚C

T

j

=21 to 33V, IO=5 to 350mA,

V

I

=25˚C, P

T

j

=21 to 33V, Tj=25˚C

V

I

IN

=22 to 33V, Tj=25˚C

V

I

=5 to 500mA, Tj=25˚C

I

O

L

=5 to 200mA, Tj=25˚C

I

O

=25˚C

T

j

=21 to 33V, Tj=25˚C

V

I

=5 to 350mA, Tj=25˚C

I

O

D

<

*

=

f=10Hz to 100kHz
VI=22 to 32V, IO=100mA, f=120Hz

=500mA, Tj=25˚C

I

O

=35V, Tj=25˚C

V

I

Tj=25˚C
IO=5mA, Tj=0 to 125˚C

drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=27V, IO=350mA, CI=0.33µF and CO=0.1µF.

*

AN78M00 Series:15W, AN78M00F Series:10.25W

17.3

17.1

18.7 V18

18.9

V

100 mV10

50

0.8

0.5

mV
mV30
mV
mA4.4

6

mA
mA
µV

dB

5

360
180

10

100

53

V2
mA300
mA700

–1.0

mV/˚C

■ Electrical Characteristics (Ta=25˚C)

AN78M20/78M20F (20V Type)

·

Parameter Symbol Condition min typ max Unit

Output voltage
Output voltage tolerance

Line regulation

Load regulation

Bias current
Input bias current fluctuation
Load bias current fluctuation
Output noise voltage
Ripple rejection ratio
Minimum input/output voltage difference
Output short circuit current
Peak output current
Output voltage temperature coefficient

Note 1) The specified condition T

=25˚C means that the test should be carried out with the test time so short (within 10ms) that the

j

REG

REG

∆I
∆I

V

DIF (min.)

I

O (Short)

I

O (Peak)

∆V

V

O

V

O

I

bias

bias (IN)

bias (L)

V

no

RR

/Ta

O

drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=29V, IO=350mA, CI=0.33µF and CO=0.1µF.

*

AN78M00 Series:15W, AN78M00F Series:10.25W

=25˚C

T

j

=23 to 35V, IO=5 to 350mA,

V

I

=25˚C, P

T

j

=23 to 35V, Tj=25˚C

V

I

IN

=24 to 35V, Tj=25˚C

V

I

=5 to 500mA, Tj=25˚C

I

O

L

=5 to 200mA, Tj=25˚C

I

O

=25˚C

T

j

=23 to 35V, Tj=25˚C

V

I

=5 to 350mA, Tj=25˚C

I

O

D

<

*

=

f=10Hz to 100kHz
VI=24 to 34V, IO=100mA, f=120Hz

=500mA, Tj=25˚C

I

O

=35V, Tj=25˚C

V

I

Tj=25˚C
IO=5mA, Tj=0 to 125˚C

19.2

20.8 V20

19

21

V

100 mV10

0.8

0.5

mV

50

mV30
mV
mA4.4

6

mA
mA
µV

dB

5

400
200

10

110

53

V2
mA300
mA700

–1.0

mV/˚C

AN78M24/78M24F (24V Type)

·

Parameter Symbol Condition min typ max Unit

=25˚C

Output voltage
Output voltage tolerance

Line regulation

Load regulation

Bias current
Input bias current fluctuation
Load bias current fluctuation
Output noise voltage
Ripple rejection ratio
Minimum input/output voltage difference
Output short circuit current
Peak output current
Output voltage temperature coefficient

Note 1) The specified condition T

=25˚C means that the test should be carried out with the test time so short (within 10ms) that the

j

REG

REG

∆I
∆I

V

DIF (min.)

I

O (Short)

I

O (Peak)

∆V

V
V

I

bias

bias (IN)

bias (L)

V
RR

O

T

O

O

no

j

=27 to 38V, IO=5 to 350mA,

V

I

=25˚C, P

T

j

=27 to 38V, Tj=25˚C

V

I

IN

=28 to 38V, Tj=25˚C

V

I

=5 to 500mA, Tj=25˚C

I

O

L

=5 to 200mA, Tj=25˚C

I

O

=25˚C

T

j

=27 to 38V, Tj=25˚C

V

I

=5 to 350mA, Tj=25˚C

I

O

f=10Hz to 100kHz

D

<

=

VI=28 to 38V, IO=100mA, f=120Hz

=500mA, Tj=25˚C

I

O

=35V, Tj=25˚C

V

I

Tj=25˚C
IO=5mA, Tj=0 to 125˚C

/Ta

*

drift in characteristic value due to the rise in chip junction temperature can be ignored.
Note 2) When not specified, VI=33V, IO=350mA, CI=0.33µF and CO=0.1µF.

*

AN78M00 Series:15W, AN78M00F Series:10.25W

22.8

25.2

25 V24

V

23

100 mV10

0.8

0.5

mV

50

mV30
mV
mA4.5

6

mA
mA
µV

dB

5

480
240

10

170

50

V2
mA300
mA700

–1.2

mV/˚C

■ Characteristic Curve

PD –Ta (AN78M00 Series)

16

(1)

14

12

(W)

D

(2)

10

8

6

(3)

4

Power Dissipation P

2

(4)

0

0 40 80 120 160

Ambient Temperature Ta (˚C)

(1)

Infinite Heat Sink

(2)

5˚C/W Heat Sink

(3)

15˚C/W Heat Sink

(4) Without Heat

Sink

Input Transient Response

AN78M05

10

0

–10

(W)

D

Power Dissipation P

20

(V)

I

15

10

Input Voltage V

5

PD –Ta (AN78M00F Series)

16

14

12

(1)

10

8

(2)

6

(3)

4

(4)

2

0

0 40 80 120 160

Ambient Temperature Ta (˚C)

(1) Infinite Heat Sink
(2) 5˚C/W Heat Sink
(3) 15˚C/W Heat Sink
(4) Without Heat Sink

Load Transient Response

AN78M05

1

0

–1

V

(V)

2.5
AN78M05

DIF (min.)

2.0

1.5

1.0

0.5

0

Minimum Input/Output Voltage Difference V

DIF (min.) –Tj

–50 0 50 100 150

Junction Temperature Tj (˚C)

Current Limiting

7

(A)

2

O

1

0

Load Current I

VI=10V

=5V

V

O

6

=25˚C

T

j

5

(V)

O

4

3

2

Output Voltage V

1

IO=500mA

200mA
100mA

10mA

0mA

–20

024

Output Voltage Fluctuation (mV)

6810

Time t (µs)

■ Basic Regulator Circuit

Input Output

1

AN78M00
AN78M00F

C

I

2

3

Common

C

O

CI is set when the input line is long.
CO improves the transient response.

–2

01020

Output Voltage Fluctuation (V)

30 40 50

Time t (µs)

0

0 0.3 0.6 0.9 1.2

Output Current IO (A)

■ Applica tion Circuit

V

I

1

AN78M00
AN78M00F

2

I

bias

VO = VO´ + I

I

I

0.33µF

VO´

+ R

bias

AN78M00
AN78M00F

2

I

VO´

IO = + I

R

V

3

VO´

1

R

2

O

R

2

R

1

+V

0.33µF

I

1

AN78M00
AN78M00F

2

3

910Ω

VO´

9.1kΩ

–

AN6562

+

10kΩ

VO = VO ×

–V

I

V

varies with the value of the

O

R

R

1

2

910

9.1k

V

O

0.1µF

×

R1+ R

R

1

2

input voltage V1.

V

I

31

R

VO´

bias

bias

1

1

0.33µF

I

O

3Ω

Q

1

1

AN78M00
AN78M00F

2

(In case of R1+ R2=10kΩ)

I

O

0.1µF

V

O

3