500 mA very low drop voltage regulator

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  • The LDFM is a fast, very low drop linear regulator which operates from an input supply voltage in the range of 2.5 V to 16 V.

    It is available in fixed and adjustable output voltage versions, from 0.8 V to 12 V.
    The LDFM features high output precision, very low dropout voltage, low noise, and low quiescent current, therefore suitable for low voltage microprocessors and memory applications.
    Enable logic control pin and Power Good output are featured on PPAK/DFN packages.
    Current and thermal protection are provided.

    主要特性

    • Input voltage from 2.5 to 16 V
    • Very low dropout voltage (300 mV max. at 500 mA load)
    • Low quiescent current (200 µA typ. @ 500 mA load)
    • Available in 1 % precision in PPAK and DFN6 packages, 2 % in DPAK
    • 500 mA guaranteed output current
    • Wide range of output voltages available on request: adjustable from 0.8 V, fixed up to 12 V in 100 mV steps
    • Logic-controlled electronic shutdown
    • Power Good (PPAK and DFN packages)
    • Fast dynamic response to line and load changes
    • Internal current and thermal protection
    • Temperature range: - 40 °C to 125 °C

样片和购买

产品型号
封装
包装类型
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
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LDFM50DT-TR DPAK Tape And Reel 5 2 0.5
Active
0.476 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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LDFMPUR DFN6 3x3 Tape And Reel - 2 0.5
Active
0.476 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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2975

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LDFMPVR DFN6 2x2 Tape And Reel - 2 0.5
Active
0.476 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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Distributor availability ofLDFMPVR

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DIGIKEY WORLDWIDE 1891 1 Order Now
ARROW EUROPE 3000 0 Order Now
MOUSER WORLDWIDE 4425 1 Order Now

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1891

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4425

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代理商库存报告日期: 2019-09-19

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LDFM33PUR DFN6 3x3 Tape And Reel - 2 0.5
Active
0.476 10000
更多信息

ECCN (US):

EAR99

Country of Origin:

CHINA

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Distributor availability ofLDFM33PUR

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MOUSER WORLDWIDE 2782 1 Order Now
Farnell Element14 EUROPE 552 1 Order Now

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MOUSER

库存

2782

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库存

552

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代理商库存报告日期: 2019-09-19

立即购买
LDFMPT-TR PPACK 5 Tape And Reel - 2 0.5
Active
0.476 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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Distributor availability ofLDFMPT-TR

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DIGIKEY

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4240

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2985

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1344

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2500

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2500

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代理商库存报告日期: 2019-09-19

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LDFM33PVR DFN6 2x2 Tape And Reel - 2 0.5
Active
0.476 10000
更多信息

ECCN (US):

EAR99

Country of Origin:

CHINA

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Distributor availability ofLDFM33PVR

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MOUSER WORLDWIDE 2680 1 Order Now
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代理商名称

MOUSER

库存

2680

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1

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Farnell Element14

库存

2780

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1

地区

EUROPE Order Now

代理商库存报告日期: 2019-09-19

立即购买
LDFM50PT-TR PPACK 5 Tape And Reel 5 2 0.5
Active
0.476 10000
更多信息

ECCN (US):

EAR99

Country of Origin:

CHINA

查看供货情况

Distributor availability ofLDFM50PT-TR

代理商名称
地区 库存 最小订购量 Third party link
Newark Element14 AMERICA 50 0 Order Now
MOUSER WORLDWIDE 2462 1 Order Now
Farnell Element14 EUROPE 4327 1 Order Now

代理商库存报告日期: 2019-09-19

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2462

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4327

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1

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EUROPE Order Now

代理商库存报告日期: 2019-09-19

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LDFM50DT-TR

封装

DPAK

包装类型

Tape And Reel

Unit Price (US$)

0.476*

Distributor availability ofLDFM50DT-TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2513 1 Order Now
MOUSER WORLDWIDE 3316 1 Order Now
Farnell Element14 EUROPE 2414 1 Order Now

代理商库存报告日期: 2019-09-19

代理商名称

DIGIKEY

库存

2513

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

3316

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

2414

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-09-19

Output Voltage (V) (nom)

5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.476

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LDFMPUR

封装

DFN6 3x3

包装类型

Tape And Reel

Unit Price (US$)

0.476*

Distributor availability ofLDFMPUR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 729 1 Order Now
FUTURE WORLDWIDE 9000 3000 Order Now
MOUSER WORLDWIDE 1563 1 Order Now
Farnell Element14 EUROPE 2975 1 Order Now

代理商库存报告日期: 2019-09-19

代理商名称

DIGIKEY

库存

729

Min.Order

1

地区

WORLDWIDE Order Now

FUTURE

库存

9000

Min.Order

3000

地区

WORLDWIDE Order Now

MOUSER

库存

1563

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

2975

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-09-19

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.476

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LDFMPVR

封装

DFN6 2x2

包装类型

Tape And Reel

Unit Price (US$)

0.476*

Distributor availability ofLDFMPVR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1891 1 Order Now
ARROW EUROPE 3000 0 Order Now
MOUSER WORLDWIDE 4425 1 Order Now

代理商库存报告日期: 2019-09-19

代理商名称

DIGIKEY

库存

1891

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

3000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

4425

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-09-19

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.476

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LDFM33PUR

封装

DFN6 3x3

包装类型

Tape And Reel

Unit Price (US$)

0.476*

Distributor availability ofLDFM33PUR

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 2782 1 Order Now
Farnell Element14 EUROPE 552 1 Order Now

代理商库存报告日期: 2019-09-19

代理商名称

MOUSER

库存

2782

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

552

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-09-19

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.476

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LDFMPT-TR

封装

PPACK 5

包装类型

Tape And Reel

Unit Price (US$)

0.476*

Distributor availability ofLDFMPT-TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 4240 1 Order Now
RS COMPONENTS EUROPE 2985 1 Order Now
MOUSER WORLDWIDE 1344 1 Order Now
Farnell Element14 EUROPE 1372 1 Order Now
ANGLIA Live EUROPE 2500 2500 Order Now

代理商库存报告日期: 2019-09-19

代理商名称

DIGIKEY

库存

4240

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

2985

Min.Order

1

地区

EUROPE Order Now

MOUSER

库存

1344

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1372

Min.Order

1

地区

EUROPE Order Now

ANGLIA Live

库存

2500

Min.Order

2500

地区

EUROPE Order Now

代理商库存报告日期: 2019-09-19

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.476

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LDFM33PVR

封装

DFN6 2x2

包装类型

Tape And Reel

Unit Price (US$)

0.476*

Distributor availability ofLDFM33PVR

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 2680 1 Order Now
Farnell Element14 EUROPE 2780 1 Order Now

代理商库存报告日期: 2019-09-19

代理商名称

MOUSER

库存

2680

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

2780

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-09-19

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.476

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LDFM50PT-TR

封装

PPACK 5

包装类型

Tape And Reel

Unit Price (US$)

0.476*

Distributor availability ofLDFM50PT-TR

代理商名称
地区 库存 最小订购量 Third party link
Newark Element14 AMERICA 50 0 Order Now
MOUSER WORLDWIDE 2462 1 Order Now
Farnell Element14 EUROPE 4327 1 Order Now

代理商库存报告日期: 2019-09-19

代理商名称

Newark Element14

库存

50

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

2462

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

4327

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-09-19

Output Voltage (V) (nom)

5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.476

数量

10000

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

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产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
LDFM33PUR
Active
DFN6 3x3 工业 Ecopack2
LDFM33PVR
Active
DFN6 2x2 工业 Ecopack2
LDFM50DT-TR
Active
DPAK 工业 Ecopack2
LDFM50PT-TR
Active
PPACK 5 工业 Ecopack2
LDFMPT-TR
Active
PPACK 5 工业 Ecopack2
LDFMPUR
Active
DFN6 3x3 工业 Ecopack2
LDFMPVR
Active
DFN6 2x2 工业 Ecopack2

LDFM33PUR

Package:

DFN6 3x3

Material Declaration**:

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDFM33PVR

Package:

DFN6 2x2

Material Declaration**:

Marketing Status

Active

Package

DFN6 2x2

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDFM50DT-TR

Package:

DPAK

Material Declaration**:

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDFM50PT-TR

Package:

PPACK 5

Material Declaration**:

Marketing Status

Active

Package

PPACK 5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDFMPT-TR

Package:

PPACK 5

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PPACK 5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDFMPUR

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDFMPVR

Package:

DFN6 2x2

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 2x2

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.