ST L4931 User Manual

ST L4931 User Manual

L4931

SERIES

VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT

VERY LOW DROPOUT VOLTAGE (0.4V)

VERY LOW QUIESCENT CURRENT (TYP. 50 µA IN OFF MODE, 600µA IN ON MODE)

OUTPUT CURRENT UP TO 250 mA

LOGIC-CONTROLLED ELECTRONIC SHUTDOWN

OUTPUT VOLTAGES OF 1.25; 1.5; 2.5; 2.7; 3; 3.3; 3.5; 4; 4.5; 4.7; 5; 5.2; 5.5; 6; 8; 12V

INTERNAL CURRENT AND THERMAL LIMIT

ONLY 2.2µF FOR STABILITY

AVAILABLE IN ± 1% (AB) OR 2% (C) SELECTION AT 25°C

SUPPLY VOLTAGE REJECTION: 70db TYP. FOR 5V VERSION

TEMPERATURE RANGE: -40 TO 125°C

DESCRIPTION

The L4931 series are very Low Drop regulators available in TO-220, SO-8, DPAK, PPAK and TO-92 packages and in a wide range of output voltages.

The very Low Drop voltage (0.4V) and the very low quiescent current make them particularly suitable for Low Noise, Low Power applications and specially in battery powered systems.

TO-220

TO-92

PPAK

DPAK

SO-8

In PPAK and SO-8 packages a Shutdown Logic Control function is available TTL compatible. This means that when the device is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. It requires only a 2.2 µF capacitor for stability allowing space and cost saving.

SCHEMATIC DIAGRAM

January 2004

1/29

L4931 SERIES

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

 

 

 

 

VI

DC Input Voltage

20

V

IO

Output Current

Internally Limited

 

Ptot

Power Dissipation

Internally Limited

 

Tstg

Storage Temperature Range

-40 to 150

°C

Top

Operating Junction Temperature Range

-40 to 125

°C

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.

THERMAL DATA

Symbol

Parameter

TO-220

SO-8

DPAK

PPAK

TO-92

Unit

 

 

 

 

 

 

 

 

Rthj-case

Thermal Resistance Junction-case

3

20

8

8

 

°C/W

Rthj-amb

Thermal Resistance Junction-ambient

50

55(*)

100

100

200

°C/W

(*) Considering 6 cm2 of copper board heat-sink

CONNECTION DIAGRAM (top view)

TO-220

SO-8

PPAK

DPAK

PIN 1 = VOUT

 

PIN 2 = GND

 

PIN 3 = VIN

 

 

TO-92

 

BOTTOM VIEW

2/29

 

L4931 SERIES

ORDERING CODES

TO-220

SO-8

PPAK

DPAK

TO-92

OUTPUT

VOLTAGE

 

 

 

 

 

 

 

 

 

 

 

L4931CV12 (*)

L4931CD12 (*)

L4931CPT12 (*)

L4931CDT12 (*)

L4931CZ12 (*)

1.25 V

 

 

 

 

 

 

L4931ABV12 (*)

L4931ABD12 (*)

L4931ABPT12 (*)

L4931ABDT12 (*)

L4931ABZ12 (*)

1.25 V

 

 

 

 

 

 

L4931CV15 (*)

L4931CD15 (*)

L4931CPT15 (*)

L4931CDT15 (*)

L4931CZ15 (*)

1.5 V

 

 

 

 

 

 

L4931ABV15 (*)

L4931ABD15 (*)

L4931ABPT15 (*)

L4931ABDT15 (*)

L4931ABZ15 (*)

1.5 V

 

 

 

 

 

 

L4931CV25 (*)

L4931CD25

L4931CPT25 (*)

L4931CDT25

L4931CZ25 (*)

2.5 V

 

 

 

 

 

 

L4931ABV25 (*)

L4931ABD25

L4931ABPT25 (*)

L4931ABDT25

L4931ABZ25 (*)

2.5 V

 

 

 

 

 

 

L4931CV27

L4931CD27

L4931CPT27

L4931CDT27

L4931CZ27

2.7 V

 

 

 

 

 

 

L4931ABV27

L4931ABD27

L4931ABPT27

L4931ABDT27

L4931ABZ27

2.7 V

 

 

 

 

 

 

L4931CV30

L4931CD30

L4931CPT30

L4931CDT30

L4931CZ30

3 V

L4931ABV30

L4931ABD30

L4931ABPT30

L4931ABDT30

L4931ABZ30

3 V

 

 

 

 

 

 

L4931CV33

L4931CD33

L4931CPT33

L4931CDT33

L4931CZ33

3.3 V

 

 

 

 

 

 

L4931ABV33

L4931ABD33

L4931ABPT33

L4931ABDT33

L4931ABZ33

3.3 V

 

 

 

 

 

 

L4931CV35

L4931CD35

L4931CPT35

L4931CDT35

L4931CZ35

3.5 V

 

 

 

 

 

 

L4931ABV35

L4931ABD35

L4931ABPT35

L4931ABDT35

L4931ABZ35

3.5 V

 

 

 

 

 

 

L4931CV40

L4931CD40

L4931CPT40

L4931CDT40

L4931CZ40

4 V

 

 

 

 

 

 

L4931ABV40

L4931ABD40

L4931ABPT40

L4931ABDT40

L4931ABZ40

4 V

 

 

 

 

 

 

L4931CV45 (*)

L4931CD45 (*)

L4931CPT45 (*)

L4931CDT45 (*)

L4931CZ45 (*)

4.5 V

 

 

 

 

 

 

L4931ABV45 (*)

L4931ABD45 (*)

L4931ABPT45 (*)

L4931ABDT45 (*)

L4931ABZ45 (*)

4.5 V

 

 

 

 

 

 

L4931CV47

L4931CD47

L4931CPT47

L4931CDT47

L4931CZ47

4.75 V

 

 

 

 

 

 

L4931ABV47

L4931ABD47

L4931ABPT47

L4931ABDT47

L4931ABZ47

4.75 V

 

 

 

 

 

 

L4931CV50

L4931CD50

L4931CPT50

L4931CDT50

L4931CZ50

5 V

L4931ABV50

L4931ABD50

L4931ABPT50

L4931ABDT50

L4931ABZ50

5 V

 

 

 

 

 

 

L4931CV52 (*)

L4931CD52 (*)

L4931CPT52 (*)

L4931CDT52 (*)

L4931CZ52 (*)

5.2 V

 

 

 

 

 

 

L4931ABV52 (*)

L4931ABD52 (*)

L4931ABPT52 (*)

L4931ABDT52 (*)

L4931ABZ52 (*)

5.2 V

L4931CV55 (*)

L4931CD55 (*)

L4931CPT55 (*)

L4931CDT55 (*)

L4931CZ55 (*)

5.5 V

 

 

 

 

 

 

L4931ABV55 (*)

L4931ABD55 (*)

L4931ABPT55 (*)

L4931ABDT55 (*)

L4931ABZ55 (*)

5.5 V

 

 

 

 

 

 

L4931CV60

L4931CD60

L4931CPT60

L4931CDT60

L4931CZ60

6 V

 

 

 

 

 

 

L4931ABV60

L4931ABD60

L4931ABPT60

L4931ABDT60

L4931ABZ60

6 V

 

 

 

 

 

 

L4931CV80

L4931CD80

L4931CPT80

L4931CDT80

L4931CZ80

8 V

 

 

 

 

 

 

L4931ABV80

L4931ABD80

L4931ABPT80

L4931ABDT80

L4931ABZ80

8 V

 

 

 

 

 

 

L4931CV120

L4931CD120

L4931CPT120

L4931CDT120

L4931CZ120

12 V

 

 

 

 

 

 

L4931ABV120

L4931ABD120

L4931ABPT120

L4931ABDT120

L4931ABZ120

12 V

 

 

 

 

 

 

(*) Available on request.

3/29

L4931 SERIES

TEST CIRCUITS

ELECTRICAL CHARACTERISTICS OF L4931ABxx12 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified).

Symbol

Parameter

 

Test Conditions

Min.

Typ.

Max.

Unit

 

 

 

 

 

 

 

 

VO

Output Voltage

IO = 5 mA

VI = 3.3 V

1.238

1.25

1.263

V

 

 

IO = 5 mA

VI = 3.3 V TA=-25 to 85°C

1.225

 

1.275

 

VI

Operating Input Voltage

IO = 250 mA

 

 

 

2.5

 

20

V

Iout

Output Current Limit

 

 

 

 

 

300

 

mA

∆ VO

Line Regulation

VI = 2.5 to 20 V

IO = 0.5 mA

 

3

15

mV

∆ VO(*)

Load Regulation

VI = 2.7 V

 

IO = 0.5 to 250 mA

 

3

15

mV

Id

Quiescent Current

VI = 2.7 to 20 V

IO = 0 mA

 

0.6

1

mA

 

ON MODE

 

 

 

 

 

 

 

 

 

VI = 2.7 to 20 V

IO = 250 mA

 

4

6

 

 

 

 

 

 

OFF MODE

VI = 6 V

 

 

 

 

50

100

µA

SVR

Supply Voltage Rejection

IO = 5 mA

 

 

f = 120 Hz

 

80

 

dB

 

 

VI = 3.7 ± 1 V

 

f = 1 KHz

 

77

 

 

 

 

 

 

 

f = 10 KHz

 

55

 

 

 

 

 

 

 

 

 

 

eN

Output Noise Voltage

B =10 Hz to 100 KHz

 

50

 

µ V

Vd(*)

Dropout Voltage

IO = 250 mA

 

 

 

 

1.25

 

V

VIL

Control Input Logic Low

TA= -40 to 125°C

 

 

 

 

0.8

V

VIH

Control Input Logic High

TA= -40 to 125°C

 

 

2

 

 

V

II

Control Input Current

VI = 6 V,

VC = 6 V

 

10

 

µA

CO

Output Bypass Capacitance

ESR = 0.1 to 10 Ω

 

IO = 0 to 250 mA

2

10

 

µF

(*) For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

4/29

L4931 SERIES

ELECTRICAL CHARACTERISTICS OF L4931Cxx12 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified).

Symbol

Parameter

 

Test Conditions

Min.

Typ.

Max.

Unit

 

 

 

 

 

 

 

 

VO

Output Voltage

IO = 5 mA

VI = 3.3 V

1.225

1.25

1.275

V

 

 

IO = 5 mA

VI = 3.3 V TA=-25 to 85°C

1.2

 

1.3

 

VI

Operating Input Voltage

IO = 250 mA

 

 

 

2.5

 

20

V

Iout

Output Current Limit

 

 

 

 

 

300

 

mA

∆ VO

Line Regulation

VI = 2.5 to 20 V

IO = 0.5 mA

 

3

18

mV

∆ VO(*)

Load Regulation

VI = 2.7 V

 

IO = 0.5 to 250 mA

 

3

18

mV

Id

Quiescent Current

VI = 2.7 to 20 V

IO = 0 mA

 

0.6

1

mA

 

ON MODE

 

 

 

 

 

 

 

 

 

VI = 2.7 to 20 V

IO = 250 mA

 

4

6

 

 

 

 

 

 

OFF MODE

VI = 6 V

 

 

 

 

50

100

µA

SVR

Supply Voltage Rejection

IO = 5 mA

 

 

f = 120 Hz

 

80

 

dB

 

 

VI = 3.7 ± 1 V

 

f = 1 KHz

 

77

 

 

 

 

 

 

 

f = 10 KHz

 

55

 

 

 

 

 

 

 

 

 

 

eN

Output Noise Voltage

B =10 Hz to 100 KHz

 

50

 

µ V

Vd(*)

Dropout Voltage

IO = 250 mA

 

 

 

 

1.25

 

V

VIL

Control Input Logic Low

TA= -40 to 125°C

 

 

 

 

0.8

V

VIH

Control Input Logic High

TA= -40 to 125°C

 

 

2

 

 

V

II

Control Input Current

VI = 6 V,

VC = 6 V

 

10

 

µA

CO

Output Bypass Capacitance

ESR = 0.1 to 10 Ω

 

IO = 0 to 250 mA

2

10

 

µF

(*) For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

ELECTRICAL CHARACTERISTICS OF L4931ABxx15 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified).

Symbol

Parameter

 

Test Conditions

Min.

Typ.

Max.

Unit

 

 

 

 

 

 

 

 

VO

Output Voltage

IO = 5 mA

VI = 3.5 V

1.485

1.5

1.515

V

 

 

IO = 5 mA

VI = 3.5 V TA=-25 to 85°C

1.47

 

1.53

 

VI

Operating Input Voltage

IO = 250 mA

 

 

 

2.5

 

20

V

Iout

Output Current Limit

 

 

 

 

 

300

 

mA

∆ VO

Line Regulation

VI = 2.5 to 20 V

IO = 0.5 mA

 

3

15

mV

∆ VO(*)

Load Regulation

VI = 2.7 V

 

IO = 0.5 to 250 mA

 

3

15

mV

Id

Quiescent Current

VI = 2.7 to 20 V

IO = 0 mA

 

0.6

1

mA

 

ON MODE

 

 

 

 

 

 

 

 

 

VI = 2.7 to 20 V

IO = 250 mA

 

4

6

 

 

 

 

 

 

OFF MODE

VI = 6 V

 

 

 

 

50

100

µA

SVR

Supply Voltage Rejection

IO = 5 mA

 

 

f = 120 Hz

 

79

 

dB

 

 

VI = 3.7 ± 1 V

 

f = 1 KHz

 

76

 

 

 

 

 

 

 

f = 10 KHz

 

55

 

 

 

 

 

 

 

 

 

 

eN

Output Noise Voltage

B =10 Hz to 100 KHz

 

50

 

µ V

Vd(*)

Dropout Voltage

IO = 250 mA

 

 

 

 

1

 

V

VIL

Control Input Logic Low

TA= -40 to 125°C

 

 

 

 

0.8

V

VIH

Control Input Logic High

TA= -40 to 125°C

 

 

2

 

 

V

II

Control Input Current

VI = 6 V,

VC = 6 V

 

10

 

µA

CO

Output Bypass Capacitance

ESR = 0.1 to 10 Ω

 

IO = 0 to 250 mA

2

10

 

µF

(*) For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

5/29

L4931 SERIES

ELECTRICAL CHARACTERISTICS OF L4931Cxx15 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified).

Symbol

Parameter

 

Test Conditions

Min.

Typ.

Max.

Unit

 

 

 

 

 

 

 

 

VO

Output Voltage

IO = 5 mA

VI = 3.5 V

1.47

1.5

1.53

V

 

 

IO = 5 mA

VI = 3.5 V TA=-25 to 85°C

1.44

 

1.56

 

VI

Operating Input Voltage

IO = 250 mA

 

 

 

2.5

 

20

V

Iout

Output Current Limit

 

 

 

 

 

300

 

mA

∆ VO

Line Regulation

VI = 2.5 to 20 V

IO = 0.5 mA

 

3

18

mV

∆ VO(*)

Load Regulation

VI = 2.7 V

 

IO = 0.5 to 250 mA

 

3

18

mV

Id

Quiescent Current

VI = 2.7 to 20 V

IO = 0 mA

 

0.6

1

mA

 

ON MODE

 

 

 

 

 

 

 

 

 

VI = 2.7 to 20 V

IO = 250 mA

 

4

6

 

 

 

 

 

 

OFF MODE

VI = 6 V

 

 

 

 

50

100

µA

SVR

Supply Voltage Rejection

IO = 5 mA

 

 

f = 120 Hz

 

79

 

dB

 

 

VI = 3.7 ± 1 V

 

f = 1 KHz

 

76

 

 

 

 

 

 

 

f = 10 KHz

 

55

 

 

 

 

 

 

 

 

 

 

eN

Output Noise Voltage

B =10 Hz to 100 KHz

 

50

 

µ V

Vd(*)

Dropout Voltage

IO = 250 mA

 

 

 

 

1

 

V

VIL

Control Input Logic Low

TA= -40 to 125°C

 

 

 

 

0.8

V

VIH

Control Input Logic High

TA= -40 to 125°C

 

 

2

 

 

V

II

Control Input Current

VI = 6 V,

VC = 6 V

 

10

 

µA

CO

Output Bypass Capacitance

ESR = 0.1 to 10 Ω

 

IO = 0 to 250 mA

2

10

 

µF

(*) For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

ELECTRICAL CHARACTERISTICS OF L4931ABxx25 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified).

Symbol

Parameter

 

Test Conditions

Min.

Typ.

Max.

Unit

 

 

 

 

 

 

 

 

VO

Output Voltage

IO = 5 mA

VI = 4.5 V

2.475

2.5

2.525

V

 

 

IO = 5 mA

VI = 4.5 V TA=-25 to 85°C

2.45

 

2.55

 

VI

Operating Input Voltage

IO = 250 mA

 

 

 

 

 

20

V

Iout

Output Current Limit

 

 

 

 

 

300

 

mA

∆ VO

Line Regulation

VI = 3.2 to 20 V

IO = 0.5 mA

 

3

15

mV

∆ VO(*)

Load Regulation

VI = 3.4 V

 

IO = 0.5 to 250 mA

 

3

15

mV

Id

Quiescent Current

VI = 3.4 to 20 V

IO = 0 mA

 

0.6

1

mA

 

ON MODE

 

 

 

 

 

 

 

 

 

VI = 3.4 to 20 V

IO = 250 mA

 

4

6

 

 

 

 

 

 

OFF MODE

VI = 6 V

 

 

 

 

50

100

µA

SVR

Supply Voltage Rejection

IO = 5 mA

 

 

f = 120 Hz

 

75

 

dB

 

 

VI = 4.4 ± 1 V

 

f = 1 KHz

 

72

 

 

 

 

 

 

 

f = 10 KHz

 

55

 

 

 

 

 

 

 

 

 

 

eN

Output Noise Voltage

B =10 Hz to 100 KHz

 

50

 

µ V

Vd(*)

Dropout Voltage

IO = 250 mA

 

 

 

 

0.4

0.6

V

 

 

IO = 250 mA

 

TJ= -40 to 125°C

 

 

0.8

 

VIL

Control Input Logic Low

TA= -40 to 125°C

 

 

 

 

0.8

V

VIH

Control Input Logic High

TA= -40 to 125°C

 

 

2

 

 

V

II

Control Input Current

VI = 6 V,

VC = 6 V

 

10

 

µA

CO

Output Bypass Capacitance

ESR = 0.1 to 10 Ω

 

IO = 0 to 250 mA

2

10

 

µF

(*) For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

6/29

L4931 SERIES

ELECTRICAL CHARACTERISTICS OF L4931Cxx25 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified).

Symbol

Parameter

 

Test Conditions

Min.

Typ.

Max.

Unit

 

 

 

 

 

 

 

 

VO

Output Voltage

IO = 5 mA

VI = 4.5 V

2.45

2.5

2.55

V

 

 

IO = 5 mA

VI = 4.5 V TA=-25 to 85°C

2.4

 

2.6

 

VI

Operating Input Voltage

IO = 250 mA

 

 

 

 

 

20

V

Iout

Output Current Limit

 

 

 

 

 

300

 

mA

∆ VO

Line Regulation

VI = 3.3 to 20 V

IO = 0.5 mA

 

3

18

mV

∆ VO(*)

Load Regulation

VI = 3.5 V

 

IO = 0.5 to 250 mA

 

3

18

mV

Id

Quiescent Current

VI = 3.5 to 20 V

IO = 0 mA

 

0.6

1

mA

 

ON MODE

 

 

 

 

 

 

 

 

 

VI = 3.5 to 20 V

IO = 250 mA

 

4

6

 

 

 

 

 

 

OFF MODE

VI = 6 V

 

 

 

 

50

100

µA

SVR

Supply Voltage Rejection

IO = 5 mA

 

 

f = 120 Hz

 

75

 

dB

 

 

VI = 4.4 ± 1 V

 

f = 1 KHz

 

72

 

 

 

 

 

 

 

f = 10 KHz

 

55

 

 

 

 

 

 

 

 

 

 

eN

Output Noise Voltage

B =10 Hz to 100 KHz

 

50

 

µ V

Vd(*)

Dropout Voltage

IO = 250 mA

 

 

 

 

0.4

0.6

V

 

 

IO = 250 mA

 

TJ= -40 to 125°C

 

 

0.8

 

VIL

Control Input Logic Low

TA= -40 to 125°C

 

 

 

 

0.8

V

VIH

Control Input Logic High

TA= -40 to 125°C

 

 

2

 

 

V

II

Control Input Current

VI = 6 V,

VC = 6 V

 

10

 

µA

CO

Output Bypass Capacitance

ESR = 0.1 to 10 Ω

 

IO = 0 to 250 mA

2

10

 

µF

(*) For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

ELECTRICAL CHARACTERISTICS OF L4931ABxx27 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified).

Symbol

Parameter

 

Test Conditions

Min.

Typ.

Max.

Unit

 

 

 

 

 

 

 

 

VO

Output Voltage

IO = 5 mA

VI = 4.7 V

2.673

2.7

2.727

V

 

 

IO = 5 mA

VI = 4.7 V TA=-25 to 85°C

2.646

 

2.754

 

VI

Operating Input Voltage

IO = 250 mA

 

 

 

 

 

20

V

Iout

Output Current Limit

 

 

 

 

 

300

 

mA

∆ VO

Line Regulation

VI = 3.4 to 20 V

IO = 0.5 mA

 

3

15

mV

∆ VO(*)

Load Regulation

VI = 3.6 V

 

IO = 0.5 to 250 mA

 

3

15

mV

Id

Quiescent Current

VI = 3.6 to 20 V

IO = 0 mA

 

0.6

1

mA

 

ON MODE

 

 

 

 

 

 

 

 

 

VI = 3.6 to 20 V

IO = 250 mA

 

4

6

 

 

 

 

 

 

OFF MODE

VI = 6 V

 

 

 

 

50

100

µA

SVR

Supply Voltage Rejection

IO = 5 mA

 

 

f = 120 Hz

 

74

 

dB

 

 

VI = 4.6 ± 1 V

 

f = 1 KHz

 

71

 

 

 

 

 

 

 

f = 10 KHz

 

55

 

 

 

 

 

 

 

 

 

 

eN

Output Noise Voltage

B =10 Hz to 100 KHz

 

50

 

µ V

Vd(*)

Dropout Voltage

IO = 250 mA

 

 

 

 

0.4

0.6

V

 

 

IO = 250 mA

 

TJ= -40 to 125°C

 

 

0.8

 

VIL

Control Input Logic Low

TA= -40 to 125°C

 

 

 

 

0.8

V

VIH

Control Input Logic High

TA= -40 to 125°C

 

 

2

 

 

V

II

Control Input Current

VI = 6 V,

VC = 6 V

 

10

 

µA

CO

Output Bypass Capacitance

ESR = 0.1 to 10 Ω

 

IO = 0 to 250 mA

2

10

 

µF

(*) For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

7/29

L4931 SERIES

ELECTRICAL CHARACTERISTICS OF L4931Cxx27 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified). .

Symbol

Parameter

 

Test Conditions

Min.

Typ.

Max.

Unit

 

 

 

 

 

 

 

 

VO

Output Voltage

IO = 5 mA

VI = 4.7 V

2.646

2.7

2.754

V

 

 

IO = 5 mA

VI = 4.7 V TA=-25 to 85°C

2.592

 

2.808

 

VI

Operating Input Voltage

IO = 250 mA

 

 

 

 

 

20

V

Iout

Output Current Limit

 

 

 

 

 

300

 

mA

∆ VO

Line Regulation

VI = 3.4 to 20 V

IO = 0.5 mA

 

3

18

mV

∆ VO(*)

Load Regulation

VI = 3.6 V

 

IO = 0.5 to 250 mA

 

3

18

mV

Id

Quiescent Current

VI = 3.6 to 20 V

IO = 0 mA

 

0.6

1

mA

 

ON MODE

 

 

 

 

 

 

 

 

 

VI = 3.6 to 20 V

IO = 250 mA

 

4

6

 

 

 

 

 

 

OFF MODE

VI = 6 V

 

 

 

 

50

100

µA

SVR

Supply Voltage Rejection

IO = 5 mA

 

 

f = 120 Hz

 

74

 

dB

 

 

VI = 4.6 ± 1 V

 

f = 1 KHz

 

71

 

 

 

 

 

 

 

f = 10 KHz

 

55

 

 

 

 

 

 

 

 

 

 

eN

Output Noise Voltage

B =10 Hz to 100 KHz

 

50

 

µ V

Vd(*)

Dropout Voltage

IO = 250 mA

 

 

 

 

0.4

0.6

V

 

 

IO = 250 mA

 

TJ= -40 to 125°C

 

 

0.8

 

VIL

Control Input Logic Low

TA= -40 to 125°C

 

 

 

 

0.8

V

VIH

Control Input Logic High

TA= -40 to 125°C

 

 

2

 

 

V

II

Control Input Current

VI = 6 V,

VC = 6 V

 

10

 

µA

CO

Output Bypass Capacitance

ESR = 0.1 to 10 Ω

 

IO = 0 to 250 mA

2

10

 

µF

(*) For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

ELECTRICAL CHARACTERISTICS OF L4931ABxx30 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified).

Symbol

Parameter

 

Test Conditions

Min.

Typ.

Max.

Unit

 

 

 

 

 

 

 

 

 

VO

Output Voltage

IO = 5 mA

VI = 5 V

 

2.97

3

3.03

V

 

 

IO = 5 mA

VI = 5 V

TA=-25 to 85°C

2.94

 

3.06

 

VI

Operating Input Voltage

IO = 250 mA

 

 

 

 

 

 

20

V

Iout

Output Current Limit

 

 

 

 

 

 

300

 

mA

∆ VO

Line Regulation

VI = 3.7 to 20 V

IO = 0.5 mA

 

3

15

mV

∆ VO(*)

Load Regulation

VI = 3.9 V

 

IO = 0.5 to 250 mA

 

3

15

mV

Id

Quiescent Current

VI = 3.9 to 20 V

IO = 0 mA

 

0.6

1

mA

 

ON MODE

 

 

 

 

 

 

 

 

 

 

VI = 3.9 to 20 V

IO = 250 mA

 

4

6

 

 

 

 

 

 

OFF MODE

VI = 6 V

 

 

 

 

 

50

100

µA

SVR

Supply Voltage Rejection

IO = 5 mA

 

 

 

f = 120 Hz

 

74

 

dB

 

 

VI = 4.9 ± 1 V

 

 

f = 1 KHz

 

71

 

 

 

 

 

 

 

 

f = 10 KHz

 

55

 

 

 

 

 

 

 

 

 

 

 

eN

Output Noise Voltage

B =10 Hz to 100 KHz

 

 

50

 

µ V

Vd(*)

Dropout Voltage

IO = 250 mA

 

 

 

 

 

0.4

0.6

V

 

 

IO = 250 mA

 

TJ= -40 to 125°C

 

 

0.8

 

VIL

Control Input Logic Low

TA= -40 to 125°C

 

 

 

 

 

0.8

V

VIH

Control Input Logic High

TA= -40 to 125°C

 

 

 

2

 

 

V

II

Control Input Current

VI = 6 V,

VC = 6 V

 

10

 

µA

CO

Output Bypass Capacitance

ESR = 0.1 to 10 Ω

 

 

IO = 0 to 250 mA

2

10

 

µF

(*) For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

8/29

L4931 SERIES

ELECTRICAL CHARACTERISTICS OF L4931Cxx30 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified).

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

 

 

 

 

 

 

 

 

 

VO

Output Voltage

IO = 5 mA

VI = 5 V

 

2.94

3

3.06

V

 

 

IO = 5 mA

VI = 5 V

TA=-25 to 85°C

2.88

 

3.12

 

VI

Operating Input Voltage

IO = 250 mA

 

 

 

 

 

 

20

V

Iout

Output Current Limit

 

 

 

 

 

 

300

 

mA

∆ VO

Line Regulation

VI = 3.8 to 20 V

IO = 0.5 mA

 

3

18

mV

∆ VO(*)

Load Regulation

VI = 4 V

 

IO = 0.5 to 250 mA

 

3

18

mV

Id

Quiescent Current

VI = 4 to 20 V

 

IO = 0 mA

 

0.6

1

mA

 

ON MODE

 

 

 

 

 

 

 

 

 

 

VI = 4 to 20 V

 

IO = 250 mA

 

4

6

 

 

 

 

 

 

 

OFF MODE

VI = 6 V

 

 

 

 

 

50

100

µA

SVR

Supply Voltage Rejection

IO = 5 mA

 

 

 

f = 120 Hz

 

74

 

dB

 

 

VI = 5 ± 1 V

 

 

 

f = 1 KHz

 

71

 

 

 

 

 

 

 

 

f = 10 KHz

 

55

 

 

 

 

 

 

 

 

 

 

 

eN

Output Noise Voltage

B =10 Hz to 100 KHz

 

 

50

 

µ V

Vd(*)

Dropout Voltage

IO = 250 mA

 

 

 

 

 

0.4

0.6

V

 

 

IO = 250 mA

 

TJ= -40 to 125°C

 

 

0.8

 

VIL

Control Input Logic Low

TA= -40 to 125°C

 

 

 

 

 

0.8

V

VIH

Control Input Logic High

TA= -40 to 125°C

 

 

 

2

 

 

V

II

Control Input Current

VI = 6 V,

VC = 6 V

 

10

 

µA

CO

Output Bypass Capacitance

ESR = 0.1 to 10 Ω

 

 

IO = 0 to 250 mA

2

10

 

µF

(*) For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

ELECTRICAL CHARACTERISTICS OF L4931ABxx33 (refer to the test circuits, TJ = 25°C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified).

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

 

 

 

 

 

 

 

 

VO

Output Voltage

IO = 5 mA

VI = 5.3 V

3.267

3.3

3.333

V

 

 

IO = 5 mA

VI = 5.3 V TA=-25 to 85°C

3.234

 

3.366

 

VI

Operating Input Voltage

IO = 250 mA

 

 

 

 

 

20

V

Iout

Output Current Limit

 

 

 

 

 

300

 

mA

∆ VO

Line Regulation

VI = 4 to 20 V

 

IO = 0.5 mA

 

3

15

mV

∆ VO(*)

Load Regulation

VI = 4.2 V

 

IO = 0.5 to 250 mA

 

3

15

mV

Id

Quiescent Current

VI = 4.2 to 20 V

IO = 0 mA

 

0.6

1

mA

 

ON MODE

 

 

 

 

 

 

 

 

 

VI = 4.2 to 20 V

IO = 250 mA

 

4

6

 

 

 

 

 

 

OFF MODE

VI = 6 V

 

 

 

 

50

100

µA

SVR

Supply Voltage Rejection

IO = 5 mA

 

 

f = 120 Hz

 

73

 

dB

 

 

VI = 5.2 ± 1 V

 

 

f = 1 KHz

 

70

 

 

 

 

 

 

 

f = 10 KHz

 

55

 

 

 

 

 

 

 

 

 

 

eN

Output Noise Voltage

B =10 Hz to 100 KHz

 

50

 

µ V

Vd(*)

Dropout Voltage

IO = 250 mA

 

 

 

 

0.4

0.6

V

 

 

IO = 250 mA

 

TJ= -40 to 125°C

 

 

0.8

 

VIL

Control Input Logic Low

TA= -40 to 125°C

 

 

 

 

0.8

V

VIH

Control Input Logic High

TA= -40 to 125°C

 

 

2

 

 

V

II

Control Input Current

VI = 6 V,

VC = 6 V

 

10

 

µA

CO

Output Bypass Capacitance

ESR = 0.1 to 10 Ω

 

IO = 0 to 250 mA

2

10

 

µF

(*) For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

9/29

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