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  • 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.

    主要特性

    • 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

样片和购买

型号
Package
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Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
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L4931CZ33-AP TO-92 Tape And Reel 3.3 1 0.25
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0.319 1000
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L4931CD50-TR SO-8 Tape And Reel 5 1 0.25
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0.33 1000
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L4931ABDT50-TR DPAK Tape And Reel 5 1 0.25
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L4931CD27-TR SO-8 Tape And Reel 2.7 1 0.25
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L4931CPT50-TR PPACK 5 Tape And Reel 5 1 0.25
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L4931ABDT35TR DPAK Tape And Reel 3.5 1 0.25
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L4931CZ50-AP TO-92 Tape And Reel 5 1 0.25
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L4931ABD120TR SO-8 Tape And Reel 12 1 0.25
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L4931ABD50-TR SO-8 Tape And Reel 5 1 0.25
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L4931ABDT33-TR DPAK Tape And Reel 3.3 1 0.25
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L4931CDT50-TR DPAK Tape And Reel 5 1 0.25
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L4931CD33-TRY SO-8 Tape And Reel 3.3 1 0.25
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L4931CZ33-AP

Package

TO-92

Packing Type

Tape And Reel

Unit Price (US$)

0.319*

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Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.319

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931CD50-TR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.33*

Distributor availability ofL4931CD50-TR

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38

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4747

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Output Voltage (V) (nom)

5

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.33

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931ABD33-TR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.33*

Distributor availability ofL4931ABD33-TR

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5

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40000

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0

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Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.33

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931CD33-TR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.35*

Distributor availability ofL4931CD33-TR

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1947

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4900

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库存

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Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.35

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931ABDT50-TR

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.35*

Distributor availability ofL4931ABDT50-TR

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DIGIKEY WORLDWIDE 3745 1 Order Now
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4968

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WORLDWIDE Order Now

代理商库存报告日期: 2019-04-17

Output Voltage (V) (nom)

5

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.35

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931CD27-TR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.33*

Output Voltage (V) (nom)

2.7

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

NRND

Unit Price (US$)

0.33

Quantity

1000

ECCN (US)

EAR99

Country of Origin

-

L4931CPT50-TR

Package

PPACK 5

Packing Type

Tape And Reel

Unit Price (US$)

0.446*

Distributor availability ofL4931CPT50-TR

代理商名称
地区 库存 最小订购量 Third party link
RS COMPONENTS EUROPE 270 1 Order Now
AVNET AMERICA 2500 0 Order Now
FUTURE WORLDWIDE 1000 1 Order Now
MOUSER WORLDWIDE 2378 1 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

RS COMPONENTS

库存

270

Min.Order

1

地区

EUROPE Order Now

AVNET

库存

2500

Min.Order

0

地区

AMERICA Order Now

FUTURE

库存

1000

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

2378

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-04-17

Output Voltage (V) (nom)

5

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

NRND

Unit Price (US$)

0.446

Quantity

1000

ECCN (US)

EAR99

Country of Origin

-

L4931CDT33-TR

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.341*

Distributor availability ofL4931CDT33-TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1314 1 Order Now
ARROW AMERICA 140 1 Order Now
MOUSER WORLDWIDE 2012 1 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

DIGIKEY

库存

1314

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

140

Min.Order

1

地区

AMERICA Order Now

MOUSER

库存

2012

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-04-17

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.341

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931CD35-TR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.33*

Distributor availability ofL4931CD35-TR

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 2497 1 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

MOUSER

库存

2497

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-04-17

Output Voltage (V) (nom)

3.5

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.33

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931CD120-TR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.33*

Distributor availability ofL4931CD120-TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1046 1 Order Now
MOUSER WORLDWIDE 2843 1 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

DIGIKEY

库存

1046

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

2843

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-04-17

Output Voltage (V) (nom)

12

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.33

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931CD80-TR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.33*

Output Voltage (V) (nom)

8

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

NRND

Unit Price (US$)

0.33

Quantity

1000

ECCN (US)

EAR99

Country of Origin

-

L4931ABDT35TR

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.35*

Distributor availability ofL4931ABDT35TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2500 1 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

DIGIKEY

库存

2500

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-04-17

Output Voltage (V) (nom)

3.5

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.35

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931CZ50-AP

Package

TO-92

Packing Type

Tape And Reel

Unit Price (US$)

0.319*

Distributor availability ofL4931CZ50-AP

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 19666 1 Order Now
RS COMPONENTS EUROPE 3830 5 Order Now
AVNET AMERICA 8000 0 Order Now
ARROW EUROPE 24000 0 Order Now
MOUSER WORLDWIDE 549 1 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

DIGIKEY

库存

19666

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

3830

Min.Order

5

地区

EUROPE Order Now

AVNET

库存

8000

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

24000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

549

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-04-17

Output Voltage (V) (nom)

5

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.319

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931ABD120TR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.33*

Distributor availability ofL4931ABD120TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 5608 1 Order Now
RS COMPONENTS EUROPE 3503 5 Order Now
MOUSER WORLDWIDE 3221 1 Order Now
Farnell Element14 EUROPE 1891 1 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

DIGIKEY

库存

5608

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

3503

Min.Order

5

地区

EUROPE Order Now

MOUSER

库存

3221

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1891

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-04-17

Output Voltage (V) (nom)

12

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.33

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931ABD50-TR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.33*

Distributor availability ofL4931ABD50-TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 23113 1 Order Now
RS COMPONENTS EUROPE 16060 5 Order Now
ARROW EUROPE 25000 0 Order Now
MOUSER WORLDWIDE 9896 1 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

DIGIKEY

库存

23113

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

16060

Min.Order

5

地区

EUROPE Order Now

ARROW

库存

25000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

9896

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-04-17

Output Voltage (V) (nom)

5

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.33

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931ABDT33-TR

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.35*

Distributor availability ofL4931ABDT33-TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1431 1 Order Now
RS COMPONENTS EUROPE 5475 1 Order Now
AVNET AMERICA 2500 0 Order Now
MOUSER WORLDWIDE 5694 1 Order Now
Farnell Element14 EUROPE 2525 1 Order Now
RUTRONIK EUROPE 5 2500 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

DIGIKEY

库存

1431

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

5475

Min.Order

1

地区

EUROPE Order Now

AVNET

库存

2500

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

5694

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

2525

Min.Order

1

地区

EUROPE Order Now

RUTRONIK

库存

5

Min.Order

2500

地区

EUROPE Order Now

代理商库存报告日期: 2019-04-17

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.35

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931CDT50-TR

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.341*

Distributor availability ofL4931CDT50-TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2280 1 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 2443 1 Order Now
ANGLIA Live EUROPE 2500 2500 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

DIGIKEY

库存

2280

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

2500

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

2443

Min.Order

1

地区

WORLDWIDE Order Now

ANGLIA Live

库存

2500

Min.Order

2500

地区

EUROPE Order Now

代理商库存报告日期: 2019-04-17

Output Voltage (V) (nom)

5

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.341

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

L4931CD33-TRY

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.538*

Distributor availability ofL4931CD33-TRY

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 4196 1 Order Now

代理商库存报告日期: 2019-04-17

代理商名称

MOUSER

库存

4196

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-04-17

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

1

Output Current (A) (nom)

0.25

Marketing Status

Active

Unit Price (US$)

0.538

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

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

00 Files selected for download

技术文档

    • Description 版本 文档大小 Action
      DS0913
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      DS0913

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      Linear and Switching Voltage Regulators Selection Guide 3.0
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      Linear and Switching Voltage Regulators Selection Guide

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      电源管理 2017版指南 09.2017
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      Low-dropout (LDO) linear voltage regulators - Quick Reference Guide 2.0
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      电源管理 2017版指南

      Low-dropout (LDO) linear voltage regulators - Quick Reference Guide

      Power management for handheld and portable

型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4931ABD120TR
Active
SO-8 工业 Ecopack2
L4931ABD33-TR
Active
SO-8 工业 Ecopack2
L4931ABD50-TR
Active
SO-8 工业 Ecopack2
L4931ABDT33-TR
Active
DPAK 工业 Ecopack2
L4931ABDT35TR
Active
DPAK 工业 Ecopack2
L4931ABDT50-TR
Active
DPAK 工业 Ecopack2
L4931CD120-TR
Active
SO-8 工业 Ecopack2
L4931CD27-TR
NRND
SO-8 工业 Ecopack2
L4931CD33-TR
Active
SO-8 工业 Ecopack2
L4931CD33-TRY
Active
SO-8 汽车 Ecopack2
L4931CD35-TR
Active
SO-8 工业 Ecopack2
L4931CD50-TR
Active
SO-8 工业 Ecopack2
L4931CD80-TR
NRND
SO-8 工业 Ecopack2
L4931CDT33-TR
Active
DPAK 工业 Ecopack2
L4931CDT50-TR
Active
DPAK 工业 Ecopack2
L4931CPT50-TR
NRND
PPACK 5 工业 Ecopack2
L4931CZ33-AP
Active
TO-92 工业 Ecopack2
L4931CZ50-AP
Active
TO-92 工业 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

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4931CD27-TR

Package:

SO-8

Material Declaration**:

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**:

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**:

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.