AP1157ADV39_技术文档

[AP1157ADVXX]

AP1157ADVXX

14V Input / 100mA Output LDO Regulator

1. General Description

The AP1157ADVXX is a low dropout linear regulator with ON/OFF control, which can supply 100mA load

current. The IC is an integrated circuit with a silicon monolithic bipolar structure. The output voltage, trimmed

with high accuracy, is available from 1.3 to 5.5V in 0.1V steps. The output capacitor is available to use a small

0.22μF ceramic capacitor. The over current, thermal and reverse bias protections are integrated, and also the

package is small and thin type, HSON0202-6. The IC is designed for space saving requirements.

2.Features

 Available to use a small 0.22μF ceramic capacitor

 Dropout Voltage

 Output Current

V_DROP=160mV at 100mA

100mA, Peak 200mA

 High Precision output voltage

 High ripple rejection ratio

1.5% or 50mV

80dB at 1kHz

70dB at 10kHz

 Wide operating voltage range

 Very low quiescent current

 On/Off control (High active)

2.1V to 14.0V

I_QUT=75A at I_OUT=0mA

 Built-in Short circuit protection, thermal shutdown

 Built-in reverse bias over current protection

 Available very low noise application

 Very small surface mount package

HSON0202-6

3.Applications

 Any Electronic Equipment

 Battery Powered Systems

 Mobile Communication

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4.Table of Contents

1. General Description ....................................................................................................................................1

2. Features.......................................................................................................................................................1

3. Applications ................................................................................................................................................1

4. Table of Contents........................................................................................................................................2

5. Block Diagram ............................................................................................................................................3

6. Ordering Information ..................................................................................................................................4

7. Pin Configurations and Functions...............................................................................................................5

■ Pin Configurations.....................................................................................................................................5

■ Function.....................................................................................................................................................5

8. Absolute Maximum Ratings .......................................................................................................................6

9. Recommended Operating Conditions .........................................................................................................6

10. Electrical Characteristics.........................................................................................................................7

■ Electrical Characteristics of Ta=Tj=25C.................................................................................................7

■ Electrical Characteristics of Ta=-40C~85C.........................................................................................10

11. Description ............................................................................................................................................13

11.1 Input /Output Capacitors....................................................................................................................13

11.2 Temperature Characteristics ..............................................................................................................16

11.3 Ripple Rejection ................................................................................................................................18

11.4 ON/OFF Transient .............................................................................................................................19

11.5 Load Transient...................................................................................................................................20

11.6 Line Transient....................................................................................................................................21

11.7 Output Noise Characteristics .............................................................................................................22

11.8 Stability..............................................................................................................................................23

11.9 Operating Region and Power Dissipation..........................................................................................25

11.10 ON/OFF Control ............................................................................................................................26

11.11 Noise Bypass..................................................................................................................................27

11.12 The notes of the evaluation when output terminal is short-circuit to GND...................................27

12. Definition of term..................................................................................................................................28

13. Test Circuit............................................................................................................................................29

14. Package..................................................................................................................................................30

■ Outline Dimensions.................................................................................................................................30

15. Revise History .......................................................................................................................................31

IMPORTANT NOTICE ...................................................................................................................................32

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5.Block Diagram

Vin

Vout

Over Heat &

Over Current

Protection

Control

Circuit

Bandgap

Reference

Vcont

GND

Np

Figure 1. Block Diagram

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6. Ordering Information

AP1157ADVXX

-40 to 85°C

HSON0202-6

・ Output Voltage Code

For product name, please check the below chart. Please contact your authorized ASAHI KASEI

MICRODEVICES representative for voltage availability.

AP1157ADVXX

Output voltage code

Table 1. Standard Voltage Version, Output Voltage & Voltage Code

XX

18

VOUT

1.8

XX

30

VOUT

3.0

XX

50

VOUT

5.0

25

2.5

33

3.3

54

5.4

Table 2. Optional Voltage Version, Output Voltage & Voltage Code

XX

13

14

15

16

17

19

20

21

22

VOUT

1.3

1.4

1.5

1.6

1.7

1.9

2.0

2.1

XX

23

24

26

27

28

29

31

32

34

VOUT

2.3

2.4

2.6

2.7

2.8

2.9

3.1

3.2

XX

35

36

37

38

39

40

41

42

43

VOUT

3.5

3.6

3.7

3.8

3.9

4.0

4.1

4.2

XX

44

45

46

47

48

49

55

-

VOUT

4.4

4.5

4.6

4.7

4.8

4.9

5.5

-

2.2

3.4

4.3

-

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7.Pin Configurations and Functions

■ Pin Configurations

6

1

4

3

5

(Top View)

2

■ Function

Pin No.

Pin Description

Internal Equivalent Circuit

Description

Vcont

On/Off Control Terminal

V_CONT> 1.8V : ON

V_CONT< 0.35V : OFF

320k

500k

1

Vcont

The pull-down resister (500k) is built-in.

2, 5

GND

Np

-

GND Terminal

Np

Noise Bypass Terminal

3

Connect a bypass capacitor between GND.

Vout

Vin

4

6

Vout

Vin

Output Terminal

Vref

-

Input Terminal

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Condition

8.Absolute Maximum Ratings

Parameter

Supply Voltage

Symbol

Vcc_MAX

min

-0.4

Max

16

Unit

V

-0.4

-

6

V

Vout≦2.0V

Reverse Bias

Vrev_MAX

12

2.1V≦Vout

Np pin Voltage

Vnp_MAX

Vcont_MAX

Tj

5

V

Control pin Voltage

Junction temperature

Storage Temperature Range

Power Dissipation

16

V

150

760

C

mW

T_stg

-55

-

P_D

(Note 1)

Note 1. P_Dmust be decreased at rate of -6.6mW/C for operation above 25C. Thermal resistance JA=

151C/W.

WARNING: The maximum ratings are the absolute limitation values with the possibility of the IC breakage.

When the operation exceeds this standard quality cannot be guaranteed.

9.Recommended Operating Conditions

Parameter

Symbol

Ta

min

-40

2.1

typ

max

85

Unit

C

Condition

Operating Temperature Range

Operating Voltage Range

-

V_OP

14

V

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10. Electrical Characteristics

■ Electrical Characteristics of Ta=Tj=25C

The parameters with min or max values will be guaranteed at Ta=Tj=25C.

(Vin=Vout_TYP+1V,Vcont=1.8V,Ta=Tj=25C)

Parameter

Output Voltage

Symbol

Vout

Condition

Iout = 5mA

min

typ

max

Unit

(Table 3, Table 4)

V

Line Regulation

LinReg Vin = 5V

-

0.0

5.0

mV

mA

A

Iout = 5mA ~ 50mA

Load Regulation

LoaReg

(Table 3, Table 4)

Iout = 5mA ~ 100mA

Iout = 50mA

-

90

160

-

160

Dropout Voltage (Note 2)

Vdrop

Iout

Iout = 100mA

-

280

100

-

Output Current (Note 3)

Peak Output Current (Note 3)

Quiescent Current

-

Iout_PEAKWhen (Vout_TYP0.9)

150

200

75

Iout = 0mA

Vcont = 0V

Iout = 50mA

Iq

-

120

0.1

2.7

Standby Current

Istandby

Ignd

0.0

1.5

A

Ground Pin Current

mA

Control Terminal

Control Current

Vcont = 1.8V

Vout ON state

Vout OFF state

Icont

-

1.8

-

5.0

15.0

-

A

V

-

Control Voltage

Vcont

0.35

V

Reference Value

Np Terminal Voltage

Vnp

Vout/Ta

I_Short

-

1.26

35

-

V

ppm

/C

mA

V

Output Voltage / Temp.

Short Circuit Current

200

38

Output Noise Voltage

(Vout_TYP=3.0V)

Cout=1.0F, Cnp=0.01F

Iout=30mA

Vnoise

Rms

Cout=1.0F, Cnp=0.001F

Iout=10mA, f=1kHz

f=10kHz

-

80

70

-

Ripple Rejection

(Vout_TYP=3.0V)

RR

tr

dB

Cout=1.0F, Cnp=0.001F

Rise Time

(Vout_TYP=3.0V)

Vcont: Pulse Wave (100Hz)

Vcont ON  Vout95%

point

-

35

-

s

Note 2. For Vout  2.0V , no regulations.

Note 3. The output current is limited by power dissipation.

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Table 3. Standard Voltage Version

Output Voltage

Load Regulation

Iout = 50mA Iout = 100mA

Part Number

min

typ

max

typ

max

typ

max

V

mV

5

6

7

mV

12

14

15

16

20

21

mV

11

13

15

16

21

22

mV

26

31

35

37

50

52

AP1157ADV18

AP1157ADV25

AP1157ADV30

AP1157ADV33

AP1157ADV50

AP1157ADV54

1.750

2.450

2.950

3.250

4.925

5.319

1.800

2.500

3.000

3.300

5.000

5.400

1.850

2.550

3.050

3.350

5.075

5.481

9

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Table 4. Optional Voltage Version

Output Voltage

Load Regulation

Iout = 50mA Iout = 100mA

Part Number

min

typ

max

typ

max

typ

max

V

mV

5

6

7

8

9

mV

10

11

12

13

14

15

16

17

18

19

20

21

mV

10

11

12

13

14

15

16

17

18

19

20

21

22

mV

22

23

24

25

27

28

29

30

31

32

33

34

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

53

AP1157ADV13

AP1157ADV14

AP1157ADV15

AP1157ADV16

AP1157ADV17

AP1157ADV19

AP1157ADV20

AP1157ADV21

AP1157ADV22

AP1157ADV23

AP1157ADV24

AP1157ADV26

AP1157ADV27

AP1157ADV28

AP1157ADV29

AP1157ADV31

AP1157ADV32

AP1157ADV34

AP1157ADV35

AP1157ADV36

AP1157ADV37

AP1157ADV38

AP1157ADV39

AP1157ADV40

AP1157ADV41

AP1157ADV42

AP1157ADV43

AP1157ADV44

AP1157ADV45

AP1157ADV46

AP1157ADV47

AP1157ADV48

AP1157ADV49

AP1157ADV51

AP1157ADV52

AP1157ADV53

AP1157ADV55

1.250

1.350

1.450

1.550

1.650

1.850

1.950

2.050

2.150

2.250

2.350

2.550

2.650

2.750

2.850

3.050

3.150

3.349

3.447

3.546

3.644

3.743

3.841

3.940

4.038

4.137

4.235

4.334

4.432

4.531

4.629

4.728

4.826

5.024

5.122

5.221

5.418

1.300

1.400

1.500

1.600

1.700

1.900

2.000

2.100

2.200

2.300

2.400

2.600

2.700

2.800

2.900

3.100

3.200

3.400

3.500

3.600

3.700

3.800

3.900

4.000

4.100

4.200

4.300

4.400

4.500

4.600

4.700

4.800

4.900

5.100

5.200

5.300

5.500

1.350

1.450

1.550

1.650

1.750

1.950

2.050

2.150

2.250

2.350

2.450

2.650

2.750

2.850

2.950

3.150

3.250

3.451

3.553

3.654

3.756

3.857

3.959

4.060

4.162

4.263

4.365

4.466

4.568

4.669

4.771

4.872

4.974

5.177

5.278

5.380

5.583

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■ Electrical Characteristics of Ta=-40C~85C

The parameters with min or max values will be guaranteed at Ta=-40 ~ 85C.

(Vin=Vout_TYP+1V,Vcont=1.8V,Ta=-40 ~ 85C)

Parameter

Output Voltage

Symbol

Vout

Condition

Min.

Typ.

Max.

Unit

Iout = 5mA

(Table 5, Table 6)

V

Line Regulation

LinReg Vin = 5V

-

0.0

8.0

mV

mA

A

Iout = 5mA ~ 50mA

Load Regulation

LoaReg

(Table 5, Table 6)

Iout = 5mA ~ 100mA

Iout = 50mA

-

90

160

-

205

Dropout Voltage (Note 4)

Vdrop

Iout

Iout = 100mA

-

360

100

-

Output Current (Note 5)

Peak Output Current (Note 5)

Quiescent Current

-

Iout_PEAKWhen (Vout_TYP0.9)

110

200

75

Iout = 0mA

Vcont = 0V

Iout = 50mA

Iq

-

145

0.5

3.3

Standby Current

Istandby

Ignd

0.0

1.5

A

Ground Pin Current

mA

Control Terminal

Control Current

Vcont = 1.8V

Vout ON state

Vout OFF state

Icont

-

1.8

-

5.0

15.0

-

A

V

-

Control Voltage

Vcont

0.35

V

Reference Value

Np Terminal Voltage

Vnp

Vout/Ta

I_Short

-

1.26

35

-

V

ppm

/C

mA

V

Output Voltage / Temp.

Short Circuit Current

200

38

Output Noise Voltage

(Vout_TYP=3.0V)

Cout=1.0F, Cnp=0.01F

Iout=30mA

Vnoise

Rms

Cout=1.0F, Cnp=0.001F

Iout=10mA, f=1kHz

f=10kHz

-

80

70

-

Ripple Rejection

(Vout_TYP=3.0V)

RR

tr

dB

Cout=1.0F, Cnp=0.001F

Rise Time

(Vout_TYP=3.0V)

Vcont: Pulse Wave (100Hz)

Vcont ON → Vout95%

point

-

35

-

s

Note 4. For Vout  2.0V , no regulations.

Note 5. The output current is limited by power dissipation.

General Note: Parameter with only typical value is for reference only.

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Table 5. Standard Voltage Version

Output Voltage

Load Regulation

Iout = 50mA Iout = 100mA

Part Number

min

typ

max

typ

max

typ

max

V

mV

5

6

7

mV

18

21

22

23

30

31

mV

11

13

15

16

21

22

mV

42

53

62

66

AP1157ADV18

AP1157ADV25

AP1157ADV30

AP1157ADV33

AP1157ADV50

AP1157ADV54

1.720

2.420

2.920

3.217

4.875

5.265

1.800

2.500

3.000

3.300

5.000

5.400

1.880

2.580

3.080

3.383

5.125

5.535

9

94

101

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Table 6. Optional Voltage Version

Output Voltage

Load Regulation

Iout = 50mA Iout = 100mA

Part Number

min

typ

max

typ

max

typ

max

V

mV

5

6

7

8

9

mV

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

mV

10

11

12

13

14

15

16

17

18

19

20

21

22

mV

34

36

37

39

40

44

45

47

49

50

52

55

57

58

60

63

65

68

70

71

73

75

76

78

80

81

83

84

86

88

89

91

93

94

97

99

102

AP1157ADV13

AP1157ADV14

AP1157ADV15

AP1157ADV16

AP1157ADV17

AP1157ADV19

AP1157ADV20

AP1157ADV21

AP1157ADV22

AP1157ADV23

AP1157ADV24

AP1157ADV26

AP1157ADV27

AP1157ADV28

AP1157ADV29

AP1157ADV31

AP1157ADV32

AP1157ADV34

AP1157ADV35

AP1157ADV36

AP1157ADV37

AP1157ADV38

AP1157ADV39

AP1157ADV40

AP1157ADV41

AP1157ADV42

AP1157ADV43

AP1157ADV44

AP1157ADV45

AP1157ADV46

AP1157ADV47

AP1157ADV48

AP1157ADV49

AP1157ADV51

AP1157ADV52

AP1157ADV53

AP1157ADV55

1.220

1.320

1.420

1.520

1.620

1.820

1.920

2.020

2.120

2.220

2.320

2.520

2.620

2.720

2.820

3.020

3.120

3.312

3.412

3.510

3.605

3.705

3.805

3.900

3.986

4.085

4.184

4.283

4.382

4.481

4.580

4.679

4.777

4.972

5.070

5.167

5.362

1.300

1.400

1.500

1.600

1.700

1.900

2.000

2.100

2.200

2.300

2.400

2.600

2.700

2.800

2.900

3.100

3.200

3.400

3.500

3.600

3.700

3.800

3.900

4.000

4.100

4.200

4.300

4.400

4.500

4.600

4.700

4.800

4.900

5.100

5.200

5.300

5.500

1.380

1.480

1.580

1.680

1.780

1.980

2.080

2.180

2.280

2.380

2.480

2.680

2.780

2.880

2.980

3.180

3.280

3.488

3.588

3.690

3.795

3.895

3.995

4.100

4.214

4.315

4.416

4.517

4.618

4.719

4.820

4.921

5.023

5.228

5.330

5.433

5.638

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11. Description

11.1 Input /Output Capacitors

 Line Regulation

Test conditions

Vin

=Vout_TYP+1V

Vin

Vout

Np

Iout=5mA

Cin

Cout

Vcont

1.0F

Vcont

1.8V

Cnp

0.001F

 Iin vs Vin

 Quiescent Current

Iout=0mA

2.6

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

Vout=

1.5,2.0,3.0,4.0,5.0V

0

2

4

6

8

10 12 14 16

Vin (V)

 Load Regulation

 Peak Output Current

6.0

5.5

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0.0

Vout= 5.0V

4.0V

3.0V

2.0V

1.5V

0

50 100 150 200 250 300

Iout (mA)

 GND Pin Current

Test conditions

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Vin

=Vout_TYP+1V

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0.0

Vin

Vout

Np

Iout=5mA

Cin

1.0F

Cout

Vcont

1.0F

Vcont

1.8V

Cnp

0.001F

0

50

100

Iout (mA)

 Dropout Voltage

2.1V  Vout_TYP

 Standby Current (Off state)

Vcont=0V

0

-20

1.E-06

1.E-07

1.E-08

1.E-09

1.E-10

1.E-11

-40

-60

-80

-100

-120

-140

-160

0

50

100

0

2

4

6

8

10 12 14 16

Iout (mA)

Vin (V)

 Control Current

 Control Current, ON/OFF Point

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 Vout vs Vin Regulation Point

2.1V  Vout_TYP

Test conditions

Vin

=Vout_TYP+1V

Vin

Vout

Np

Iout=5mA

Cin

Cout

Vcont

1.0F

Vcont

1.8V

Cnp

0.001F

 Vout vs Vin Regulation Point

Vout_TYP=1.5V

Vout_TYP=2.0V

1.54

2.04

Iout=0,50,100mA

1.52

1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.36

1.34

2.02

2.00

1.98

1.96

1.94

1.92

1.90

1.88

1.86

1.84

1.5

1.6

1.7

1.8

1.9

2.0

1.8

1.9

2.0

2.1

2.2

2.3

Vin (V)

 Reverse Bias Current

Test conditions

Vin=0V, Vcont=0V

Vin=0V

Irev

Vin

Vout

Np

Cin

1.0F

Cout

1.0F

Vrev

Vcont

0V

Cnp

0.001F

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11.2 Temperature Characteristics

 Vout

Test conditions

Vout_TYP=3.0V

Vin

=Vout_TYP+1V

20

10

0

Vin

Vout

Np

Iout=5mA

Cin

Cout

Vcont

1.0F

-10

Vcont

1.8V

Cnp

0.001F

-20

35.15 ppm/℃

-30

-40

-40 -20

0

20 40 60 80 100

Ta （℃）

 Peak Output Current

Vout=Vout_TYP 0.9

 GND Pin Current

Iout=100mA

Iout=50mA

Iout=30mA

250

200

150

100

50

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0.0

0

-40 -20

0

20 40 60 80 100

Ta(°C)

-40 -20

0

20 40 60 80 100

Ta(℃)

 Dropout Voltage

2.1V  Vout_TYP

 Quiescent Current

Iout=0mA

Iout=100mA

300

250

200

150

100

50

Iout=50mA

Iout=30mA

0

-40 -20

0

20 40 60 80 100

Ta(°C)

Test conditions

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Vin

=Vout_TYP+1V

Vin

Vout

Np

Iout=5mA

Cin

Cout

Vcont

1.0F

Vcont

Cnp

1.8V

0.001F

 Load Regulation

Vout_TYP=3.0V

 Line Regulation

Vin = 5V

0

-10

-20

-30

-40

-50

-60

20

15

10

5

Iout=30mA

Iout=50mA

Iout=100mA

0

-5

-10

-15

-20

-40 -20

0

20 40 60 80 100

-40 -20

0

20 40 60 80 100

Ta(℃)

 Control Current

 ON/OFF Point

2.0

1.8

1.6

1.4

1.2

1.0

0.8

Vout_ON

Vout_OFF

0.6

0.4

0.2

0.0

-40 -20

0

20 40 60 80 100

Ta（℃）

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11.3 Ripple Rejection

The ripple rejection (R.R) characteristic depends on the characteristic and the capacitance of the capacitor

connected at the output side. Also it depends on the output voltage. The R.R characteristic at 50kHz or more

varies greatly with the capacitor on the output side and PCB pattern. If necessary, please check stability during

operation.

Test conditions

 Cout=0.22F, 0.47F, 1.0F, 2.2F

 Cnp=0.00F, 0.01F, 0.1F

 R.R vs Iout : Frequency=1kHz

Vripple

200mVp-p

Vin(DC)=Vout_TYP+1.5V

Vin

Vout

Np

Iout=10mA

Cout

1.0F

Vcont

f=100Hz 1MHz

Vcont

1.8V

Cnp

0.001F

 Iout=10mA, 20mA, 50mA, 100mA

 R.R vs Low Vin : Frequency=1kHz

Iout=100mA

Iout=50mA

Iout=20mA

Iout=10mA

Iout=1mA

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

0

20

40

60

80

100

0

0.2

0.4

0.6

0.8

1

Iout (mA)

Vin-Vout(Typ) (V)

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11.4 ON/OFF Transient

Test conditions

Vin

=Vout_TYP+1V

Vin

Vout

Np

Vcont

Iout=30mA

Cin

Cout

Vcont

1.0F

Rise Time

Vout×95%

Vcont=0V2V

Cnp

(f=100Hz)

0.001F

Vout

Time

 Cout=0.47F, 1.0F, 2.2F

 Cnp=0.001F, 0.01F, 0.1F

The rise time of the regulator depends on Cout and Cnp.

The fall time depends on Cout.

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11.5 Load Transient

Increase the load side capacitor when the load change is fast or when there is a large current change. In

addition, at no load, supplying small load current to ground can reduce the voltage change.

Test conditions

Vin

=Vout_TYP+1V

Vin

Vout

Np

Iout

ONOFF

Cin

1.0F

Cout

1.0F

Vcont

1.8V

Cnp

0.001F

 Iout=0100mA, 5105mA

 Iout=100mA0mA, 105mA5mA

 Cout=0.47F, 1.0F, 2.2F : Iout=0mA100mA

 Cout=0.47F, 1.0F, 2.2F : Iout=100mA0mA

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11.6 Line Transient

Test conditions

 Cnp=0.001F, 0.01F, 0.1F

Vin

=Vout_TYP+1V+2V

Vin

Vout

Np

Iout=30mA

Cout

1.0F

Vcont

Cnp

1.8V

0.001F

 Cout=0.1F, 0.22F, 0.47F

 Cout=1.0F, 2.2F

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11.7 Output Noise Characteristics

Increase Cnp to decrease the noise. The recommended Cnp capacitance is 0.01F  0.1F.

The amount of noise increases with the higher output voltages.

 Vout vs Noise

Test conditions

Vin

=Vout_TYP+1V

80

70

60

50

40

30

20

10

0

Vin

Vout

Np

Iout=30mA

Cin

1.0F

Cout

1.0F

Vcont

1.8V

Cnp

0.01F

BPF=400Hz 80kHz

1.0

2.0

3.0

4.0

5.0

Vout(Typ) (V)

 Cnp vs Noise

 Iout vs Noise

Cout=0.22uF

Cout=0.47uF

Cout=1.0uF

Cout=2.2uF

Cout=0.22uF

Cout=0.47uF

Cout=1.0uF

Cout=2.2uF

70

65

60

55

50

45

40

35

30

25

20

300

250

200

150

100

50

0

20

40

60

80

100

1p

10p 100p 1000p 0.01u 0.1u

Cnp (F)

Iout (mA)

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11.8 Stability

Linear regulators require input and output capacitors in order to maintain the regulator's loop stability. If

0.22F or larger capacitor is connected to the output side, the IC provides stable operation at any

voltage(1.3VVout_TYP5.5V). (The capacitor must be larger than 0.22F at all temperature and voltage range)

If the capacitor with high Equivalent Series Resistance (ESR) (several ohms) is used, such as tantalum

capacitor etc., the regulator may oscillate. Please select parts with low ESR.

Due to the parts are uneven, please enlarge the capacitance as much as possible. With larger capacity, the

output noise decreases more. In addition, the response to the load change, etc. can be improved. The IC won’t

be damaged by enlarging the capacity. A recommended value of application is Cin=Cout0.47F Ceramic

Capacitance.

TK705xxS

TK707xxS

AP1157ADV

Vin

Vout

TK706xxH

TK708xxH

Cin0.47F

Cout0.47F

Cnp

0.001F

GND

Figure 2. Recommended value of the application

100

Unstable area

10

1

Stable area

0.1

Unstable area

0.01

0

20 40 60 80 100

Iout (mA)

1.3V  Vout_TYP 5.5V, Cout=0.1F Cout=0.22F

Figure 3. Output Voltage, Output Current vs. Stable Operation Area

Figure 3 shows stable operation with a ceramic capacitor of 0.22F. Since it may oscillate if ESR is large, we

recommend using ceramic capacitor. The stability of the regulator improves with larger output capacitor (the

stable operation area extends.) Please use the capacitor with larger capacitance as possible.

For evaluation

Kyocera: CM05B104K10AB, CM05B224K10AB, CM105B104K16A, CM105B224K16A, CM21B225K10A

Murata:

GRM36B104K10, GRM42B104K10, GRM39B104K25, GRM39B224K10, GRM39B105K6.3

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The input capacitor is necessary in case the battery voltage drops, the power supply impedance increases, or

the distance to the power supply is far. 1 input capacitor might be necessary for each IC or for several ICs. It

depends on circuit condition. Please confirm the stability by each circuit.

Figure 4. Ceramic Capacitance vs. Voltage, Temperature

Generally, a ceramic capacitor has both temperature characteristic and voltage characteristic. Please consider

both characteristics when selecting the part. The B curves are the recommend characteristics.

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11.9 Operating Region and Power Dissipation

The power dissipation of the device depends on the junction temperature. Therefore, the package dissipation is

assumed to be an internal limitation. The package itself does not have enough heat radiation characteristic due

to the small size. Heat runs away by mounting IC on PCB. This value changes by the material, copper pattern

etc. of PCB. The overheating protection operates when there is a lot of loss inside the regulator (Ambient

temperature high, heat radiation bad, etc.). The output current and the output voltage will drop when the

protection circuit operates. When joint temperature (Tj) reaches the set temperature, IC stops the operation.

However, operation begins at once when joint temperature (Tj) decreases.

・The thermal resistance when mounted on PCB

The chip joint temperature during operation is shown by Tj=JA×Pd+Ta. Joint part temperature (Tj) of

/AP1157AEVxx is limited around 140C with the overheating protection circuit. Pd is the value when the

overheating protection circuit starts operation.

When you assume the ambient temperature to be 25C,

140=JA  Pd(W)+25

JA  Pd=115

 JA =115/Pd (C /W)

Figure 5. Example of mounting substrate

PCB Material: Two layer glass epoxy substrate

(x=30mm, y=30mm,t=1.0mm,Copper pattern thickness 35um)

AP1157ADV (HSON0202-6)

Please do the derating with -6.6mW/C at Pd=760mW and 25C or higher. Thermal resistance (JA) is

151C/W.

・Method of obtaining Pd easily

Connect output terminal to GND(short circuited), and measure the input current by increasing the input

voltage gradually up to 10V. The input current will reach the maximum output current, but will decrease soon

according to the chip temperature rising, and will finally enter the state of thermal equilibrium (natural air

cooling).

The input current and the input voltage of this state will be used to calculate the Pd.

Pd(mW)  Vin (V)  Iin (mA)

When the device is mounted, mostly achieve

AP1157ADVxx (SON0202-6): 500mW or more

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Procedure (When mounted on PCB).

Pd(mW)

Pd

2

1.Find Pd (VinIin when the output is short-circuited).

2. Plot Pd against 25C.

3. Connect Pd to the point corresponding to the 140C

with a straight line.

D Pd

5

3

4. Pull a vertical line from the maximum operating

temperature in your design (e.g., 75C).

5. Read the value of Pd against the point at which the

vertical line intersects the derating curve(DPd).

6.DPd(Vinmax-Vout)=Iout (at 75C)

4

0

25 50

100

140C

75C

Ta(°C)

Figure 6. Determine Pd

The maximum output current at the highest operating temperature will be Iout  DPd  (Vinmax-Vout).

Please use the device at low temperature with better radiation. The lower temperature provides better quality.

11.10

ON/OFF Control

It is recommended to turn the regulator off when the circuit following the regulator is not operating. A design

with small electric power loss can be implemented. Because the control current is small, it is possible to

control it directly by CMOS logic.

Control Terminal Voltage

ON/OFF State

(Vcont)

Vcont > 1.8V

Vcont < 0.35V

ON

OFF

・Parallel Connected ON/OFF Control

Vout

5V

Vin

3.3V

2.0V

3.3V

2.0V

R

On/Off

Figure 7. Parallel Connected ON/OFF Control

Figure shows the multiple regulators being controlled by a single ON/OFF control signal. There is fear of

overheating, because the power loss of the low voltage side (AP1157ADV20) is large. The series resistor (R)

is put in the input line of the low output voltage regulator in order to prevent over-dissipation. The voltage

dropped across the resistor reduces the large input-to-output voltage across the regulator, reducing the power

dissipation in the device. When the thermal sensor works, a decrease of the output voltage, oscillation, etc.

may be observed.

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11.11 Noise Bypass

The noise characteristics depend on the capacitance on the Np terminal. A standard value is Cnp=0.001F.

Increase Cnp in a design with important output noise requirements. The IC will not be damaged even the

capacitor value is increased. The on/off switching speed changes depending on the Np terminal capacitance.

The switching speed slows when the capacitance is large.

11.12 The notes of the evaluation when output terminal is short-circuit to GND

By the resonance phenomenon by Cout (C ingredient) and the short circuit line (L ingredient), which are

attached to an output terminal, an output terminal changes with minus potential. In order that Parasitism Tr

arises within Bip IC, and a latch rise phenomenon may occur within IC when the worst if it goes into an output

terminal's minus side, it results in damage by fire (white smoke) and breakage of a package. (f₀= 1 / 2 (L C))

The above-mentioned resonance phenomenon appears notably in a ceramic capacitor with the small ESR

value, etc. A resonance phenomenon can be reduced by connecting resistance (around 2ohms or more) in

series with a short circuit line. Thereby, the latch rise phenomenon within IC can be prevented.

Generally, when using tantalum or large electrolysis capacitor, the influence of resonance phenomenon can be

reduced due to the large ESR (2ohms or more).

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12. Definition of term

■

Relating Characteristic

・Output voltage (Vout)

The output voltage is specified with Vin= Vout_TYP+1V and Iout=5mA

・Output current (Iout)

Output current, which can be used continuously (It is the range where overheating protection of the IC does not

operate.)

・Peak maximum output current (Iout_PEAK

)

The rated output current is specified under the condition where the output voltage drops 90% by increasing the

output current, compared to the value specified at Vin=Vout_TYP+1V.

・Dropout voltage (Vdrop)

It is an I/O voltage difference when the circuit stops the stable operation by decreasing the input voltage. It is

measured when the output voltage drops 100mV from its nominal value by decreasing the input voltage

gradually.

・Line Regulation (LinReg)

It is the fluctuations of the output voltage value when the input voltage is changed.

・Load Regulation (LoaReg)

It is the fluctuations of the output voltage value when the input voltage is assumed to be Vout_TYP+1V, and the

load current is changed.

・Ripple Rejection (R.R)

Ripple rejection is the ability of the regulator to attenuate the ripple content of the input voltage at the output.

It is measured with the condition of

Vin=Vout+1.5V. Ripple rejection is the ratio of the ripple content

between the output vs. input and is expressed in dB.

・Standby current (Istandby)

It is an input current, which flows to the control terminal, when the IC is turned off.

■

Relating Protection Circuit

・Over Current Protection

It is a function to protect the IC by limiting the output current when excessive current flows to IC, such as the

output is connected to GND, etc.

・Thermal Protection

It protects the IC not to exceed the permissible power consumption of the package in case of large power loss

inside the regulator. The output is turned off when the chip reaches around 140C, but it turns on again when

the temperature of the chip decreases.

・Reverse Voltage Protection

Reverse voltage protection prevents damage due to the output voltage being higher than the input voltage. This

fault condition can occur when the output capacitor remains charged and the input is reduced to zero, or when

an external voltage higher than the input voltage is applied to the output side

Generally, a LDO regulator has a diode in the input direction from an output. If an input falls from an output in

an input-GND short circuit etc. and this diode turns on, current will flow for an input terminal from an output

terminal. In the case of excessive current, IC may break. In order to prevent this, it is necessary to connect a

Schottky Diode etc. outside. This product is equipped with reverse bias over-current prevention, and excessive

current does not flow in to IC. Therefore, no need to connect diode outside.

Vin

Vout

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13. Test Circuit

AP1157ADVxx

(SON0202-6)

Iin

A

Vin

GND

Vout

6

5

4

Vin

GND

Vout

Vin

Cin

Cout

1.0F

Iout

Vout

V

1.0F

Vcont

Np

Vcont

1

GND

2

Np

3

Icont

*2pin

connected internally.

and

5pin

are

A

Cnp

0.001F

Vcont

Figure 8. Test Circuit

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[AP1157ADVXX]

14. Package

■ Outline Dimensions

（Unit: mm)

Mark

6

4

xxx

1

3

2.00±0.07

1Pin Mark

Lot No.

0.20±0.05

0.65

1

3

6

4

(0.70)

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[AP1157ADVXX]

15. Revise History

Date

(YY/MM/DD)

15/01/21

Revision

00

Page

-

Contents

First edition

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[AP1157ADVXX]

IMPORTANT NOTICE

0. Asahi Kasei Microdevices Corporation (“AKM”) reserves the right to make changes to the

information contained in this document without notice. When you consider any use or application of

AKM product stipulated in this document (“Product”), please make inquiries the sales office of

AKM or authorized distributors as to current status of the Products.

1. All information included in this document are provided only to illustrate the operation and

application examples of AKM Products. AKM neither makes warranties or representations with

respect to the accuracy or completeness of the information contained in this document nor grants any

license to any intellectual property rights or any other rights of AKM or any third party with respect

to the information in this document. You are fully responsible for use of such information contained

in this document in your product design or applications. AKM ASSUMES NO LIABILITY FOR

ANY LOSSES INCURRED BY YOU OR THIRD PARTIES ARISING FROM THE USE OF

SUCH INFORMATION IN YOUR PRODUCT DESIGN OR APPLICATIONS.

2. The Product is neither intended nor warranted for use in equipment or systems that require

extraordinarily high levels of quality and/or reliability and/or a malfunction or failure of which may

cause loss of human life, bodily injury, serious property damage or serious public impact, including

but not limited to, equipment used in nuclear facilities, equipment used in the aerospace industry,

medical equipment, equipment used for automobiles, trains, ships and other transportation, traffic

signaling equipment, equipment used to control combustions or explosions, safety devices, elevators

and escalators, devices related to electric power, and equipment used in finance-related fields. Do

not use Product for the above use unless specifically agreed by AKM in writing.

3. Though AKM works continually to improve the Product’s quality and reliability, you are

responsible for complying with safety standards and for providing adequate designs and safeguards

for your hardware, software and systems which minimize risk and avoid situations in which a

malfunction or failure of the Product could cause loss of human life, bodily injury or damage to

property, including data loss or corruption.

4. Do not use or otherwise make available the Product or related technology or any information

contained in this document for any military purposes, including without limitation, for the design,

development, use, stockpiling or manufacturing of nuclear, chemical, or biological weapons or

missile technology products (mass destruction weapons). When exporting the Products or related

technology or any information contained in this document, you should comply with the applicable

export control laws and regulations and follow the procedures required by such laws and

regulations. The Products and related technology may not be used for or incorporated into any

products or systems whose manufacture, use, or sale is prohibited under any applicable domestic or

foreign laws or regulations.

5. Please contact AKM sales representative for details as to environmental matters such as the RoHS

compatibility of the Product. Please use the Product in compliance with all applicable laws and

regulations that regulate the inclusion or use of controlled substances, including without limitation,

the EU RoHS Directive. AKM assumes no liability for damages or losses occurring as a result of

noncompliance with applicable laws and regulations.

6. Resale of the Product with provisions different from the statement and/or technical features set forth

in this document shall immediately void any warranty granted by AKM for the Product and shall not

create or extend in any manner whatsoever, any liability of AKM.

7. This document may not be reproduced or duplicated, in any form, in whole or in part, without prior

written consent of AKM.

015000843-E-00

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2015/01


型号：	AP1157ADV39
厂家：	ASAHI KASEI MICROSYSTEMS
描述：	14V Input / 100mA Output LDO Regulator
文件：	总32页 (文件大小：1076K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

AP1157ADV39 [AKM]

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