L4931

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Very low drop voltage regulators with inhibit

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Product overview

Description

The L4931 is a very low drop regulator available in SO-8, DPAK, PPAK and TO-92 packages and in a wide range of output voltages.

The very low drop voltage (0.4 V) and the very low quiescent current make it particularly suitable for low noise, low power applications and especially in battery-powered systems.

A TTL compatible shutdown logic control function is available in PPAK and SO-8 packages. This means that when the device is used as a local regulator, a part of the board can be put in standby mode, decreasing the total power consumption. It requires only a 2.2 µF capacitor for stability allowing space and cost saving.

The L4931 is available as automotive-grade in SO-8 package only. This device is qualified according to the specification AEC-Q100 of the automotive market, in the temperature range from 40 °C to 125 °C, and the statistical tests: PAT, SYL, SBL are performed.

  • All features

    • Very low dropout voltage (0.4 V)
    • Very low quiescent current
    • Typ. 50 µA in OFF mode, 600 µA in ON mode
    • Output current up to 250 mA
    • Logic controlled electronic shutdown
    • Output voltages: 3.3; 3.5; 5; 12 V
    • Automotive-grade product: 3.3 V VOUT in SO-8 package only
    • Internal current and thermal limit
    • Only 2.2 µF for stability
    • Available in ± 1 % (AB) or 2 % (C) selection at 25 °C
    • Supply voltage rejection: 70 dB typ. for 5 V version
    • Temperature range: from -40 to 125 °C

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STMicroelectronics - L4931

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3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4931ABD120TR
Active
SO-8 Industrial Ecopack2
L4931ABD33-TR
Active
SO-8 Industrial Ecopack2
L4931ABD50-TR
Active
SO-8 Industrial Ecopack2
L4931ABDT33-TR
Active
DPAK Industrial Ecopack2
L4931ABDT35TR
Active
DPAK Industrial Ecopack2
L4931ABDT50-TR
Active
DPAK Industrial Ecopack2
L4931CD120-TR
NRND
SO-8 Industrial Ecopack2
L4931CD33-TR
Active
SO-8 Industrial Ecopack2
L4931CD33-TRY
Active
SO-8 Automotive Ecopack2
L4931CD35-TR
Active
SO-8 Industrial Ecopack2
L4931CD50-TR
Active
SO-8 Industrial Ecopack2
L4931CD80-TR
NRND
SO-8 Industrial Ecopack2
L4931CDT33-TR
Active
DPAK Industrial Ecopack2
L4931CDT50-TR
Active
DPAK Industrial Ecopack2
L4931CPT50-TR
NRND
PPACK 5 Industrial Ecopack2
L4931CZ33-AP
Active
TO-92 Industrial Ecopack2
L4931CZ50-AP
Active
TO-92 Industrial Ecopack2

L4931ABD120TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931ABD33-TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931ABD50-TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931ABDT33-TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931ABDT35TR

Package:

DPAK

Material Declaration**:

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931ABDT50-TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931CD120-TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931CD33-TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931CD33-TRY

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L4931CD35-TR

Package:

SO-8

Material Declaration**:

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931CD50-TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931CD80-TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931CDT33-TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931CDT50-TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931CPT50-TR

Package:

PPACK 5

Material Declaration**:

Marketing Status

NRND

Package

PPACK 5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931CZ33-AP

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-92

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931CZ50-AP

Package:

TO-92

Material Declaration**:

Marketing Status

Active

Package

TO-92

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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Part Number
Order from distributors
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Marketing Status
Grade
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Budgetary Price (US$)*/Qty
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Unit Price (US$)
Country of Origin
min
max
L4931CZ33-AP Available at distributors

Distributor availability of L4931CZ33-AP

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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Ammopack TO-92 -40 125

3.3

1

0.25

0.2702

CHINA

L4931CD50-TR Available at distributors

Distributor availability of L4931CD50-TR

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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel SO-8 -40 125

5

1

0.25

0.5025

CHINA

L4931ABD33-TR Available at distributors

Distributor availability of L4931ABD33-TR

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Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel SO-8 -40 125

3.3

1

0.25

0.5025

CHINA

L4931CD33-TR Available at distributors

Distributor availability of L4931CD33-TR

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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel SO-8 -40 125

3.3

1

0.25

0.5025

CHINA

L4931ABDT50-TR Available at distributors

Distributor availability of L4931ABDT50-TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel DPAK -40 125

5

1

0.25

0.5334

CHINA

L4931CPT50-TR Available at distributors

Distributor availability of L4931CPT50-TR

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Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
NRND
Industrial EAR99 NEC Tape and Reel PPACK 5 -40 125

5

1

0.25

-

CHINA

L4931CDT33-TR Available at distributors

Distributor availability of L4931CDT33-TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel DPAK -40 125

3.3

1

0.25

0.5187

CHINA

L4931CD35-TR Available at distributors

Distributor availability of L4931CD35-TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel SO-8 -40 125

3.5

1

0.25

0.5025

CHINA

L4931CD120-TR Available at distributors

Distributor availability of L4931CD120-TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
NRND
Industrial EAR99 NEC Tape and Reel SO-8 -40 125

12

1

0.25

-

CHINA

L4931CD80-TR Available at distributors

Distributor availability of L4931CD80-TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
NRND
Industrial EAR99 NEC Tape and Reel SO-8 -40 125

8

1

0.25

-

CHINA

L4931ABDT35TR Available at distributors

Distributor availability of L4931ABDT35TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel DPAK -40 125

3.5

1

0.25

0.5334

CHINA

L4931CZ50-AP Available at distributors

Distributor availability of L4931CZ50-AP

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Ammopack TO-92 -40 125

5

1

0.25

0.2702

CHINA

L4931ABD120TR Available at distributors

Distributor availability of L4931ABD120TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel SO-8 -40 125

12

1

0.25

0.5025

CHINA

L4931ABD50-TR Available at distributors

Distributor availability of L4931ABD50-TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel SO-8 -40 125

5

1

0.25

0.5025

CHINA

L4931ABDT33-TR Available at distributors

Distributor availability of L4931ABDT33-TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel DPAK -40 125

3.3

1

0.25

0.5334

CHINA

L4931CDT50-TR Available at distributors

Distributor availability of L4931CDT50-TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Industrial EAR99 NEC Tape and Reel DPAK -40 125

5

1

0.25

0.5187

CHINA

L4931CD33-TRY Available at distributors

Distributor availability of L4931CD33-TRY

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
Automotive EAR99 NEC Tape and Reel SO-8 -40 125

3.3

1

0.25

0.6034

CHINA

L4931CZ33-AP Active

Package:
TO-92
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931CZ33-AP

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Ammopack

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

3.3

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L4931CD50-TR Active

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931CD50-TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

5

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L4931ABD33-TR Active

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931ABD33-TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

3.3

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L4931CD33-TR Active

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931CD33-TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

3.3

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L4931ABDT50-TR Active

Package:
DPAK
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931ABDT50-TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

5

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L4931CPT50-TR NRND

Package:
PPACK 5
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931CPT50-TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

5

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

L4931CDT33-TR Active

Package:
DPAK
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931CDT33-TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

3.3

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

L4931CD35-TR Active

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931CD35-TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

3.5

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L4931CD120-TR NRND

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931CD120-TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

12

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

L4931CD80-TR NRND

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931CD80-TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

8

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

L4931ABDT35TR Active

Package:
DPAK
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931ABDT35TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

3.5

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L4931CZ50-AP Active

Package:
TO-92
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931CZ50-AP

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Ammopack

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

5

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L4931ABD120TR Active

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931ABD120TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

12

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L4931ABD50-TR Active

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931ABD50-TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

5

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L4931ABDT33-TR Active

Package:
DPAK
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931ABDT33-TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

3.3

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L4931CDT50-TR Active

Package:
DPAK
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931CDT50-TR

Grade:

Industrial

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

5

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L4931CD33-TRY Active

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4931CD33-TRY

Grade:

Automotive

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

3.3

Output Tolerance (typ):

1

Output Current (A) (nom):

0.25

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors