1A Very low drop voltage regulator IC

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  • The LDF is a fast, very low drop linear regulator which operates from an input supply voltage in the range of 2.6 V to 16 V.

    It is available in fixed and adjustable output voltage versions, from 0.8 V to 12 V.
    The LDF features are: 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 2.6 to 16 V
    • Very low-dropout voltage (500 mV max. at 1 A load)
    • Low quiescent current (200 μA typ. @ 1 A load)
    • Available in 1% precision in PPAK and DFN6 packages, 2% in DPAK
    • 1 A 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 protections
    • Temperature range: -40 °C to 125 °C

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Output Voltage (V) (nom)
Output Tolerance (typ)
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LDFPT-TR PPACK 5 Tape And Reel - 1 1
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0.476 1000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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LDFPVR DFN6 2x2 Tape And Reel - 1 1
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0.476 1000
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EAR99

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CHINA

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LDFPUR DFN6 3x3 Tape And Reel - 1 1
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0.476 1000
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EAR99

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CHINA

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LDF33PT-TR PPACK 5 Tape And Reel 3.3 1 1
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EAR99

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LDF25PT-TR PPACK 5 Tape And Reel 2.5 1 1
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0.549 1000
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EAR99

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CHINA

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LDF18PT-TR PPACK 5 Tape And Reel 1.8 1 1
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0.549 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

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LDF33DT-TR DPAK Tape And Reel 3.3 2 1
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EAR99

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LDFPT-TR

Package

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Packing Type

Tape And Reel

Unit Price (US$)

0.476*

Distributor availability ofLDFPT-TR

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Output Voltage (V) (nom)

-

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Marketing Status

Active

Unit Price (US$)

0.476

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

LDFPVR

Package

DFN6 2x2

Packing Type

Tape And Reel

Unit Price (US$)

0.476*

Distributor availability ofLDFPVR

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MOUSER WORLDWIDE 2780 1 Order Now
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代理商库存报告日期: 2019-06-25

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MOUSER

库存

2780

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1

地区

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Farnell Element14

库存

2082

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-06-25

Output Voltage (V) (nom)

-

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Marketing Status

Active

Unit Price (US$)

0.476

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

LDFPUR

Package

DFN6 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.476*

Distributor availability ofLDFPUR

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RS COMPONENTS EUROPE 2850 1 Order Now
ARROW AMERICA 24000 3000 Order Now
MOUSER WORLDWIDE 2840 1 Order Now
Farnell Element14 EUROPE 2939 1 Order Now

代理商库存报告日期: 2019-06-25

代理商名称

RS COMPONENTS

库存

2850

Min.Order

1

地区

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ARROW

库存

24000

Min.Order

3000

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AMERICA Order Now

MOUSER

库存

2840

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库存

2939

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代理商库存报告日期: 2019-06-25

Output Voltage (V) (nom)

-

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Marketing Status

Active

Unit Price (US$)

0.476

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

LDF33PT-TR

Package

PPACK 5

Packing Type

Tape And Reel

Unit Price (US$)

0.549*

Distributor availability ofLDF33PT-TR

代理商名称
地区 库存 最小订购量 Third party link
RS COMPONENTS EUROPE 1625 1 Order Now
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ANGLIA Live EUROPE 2500 2500 Order Now

代理商库存报告日期: 2019-06-25

代理商名称

RS COMPONENTS

库存

1625

Min.Order

1

地区

EUROPE Order Now

MOUSER

库存

2485

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1061

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: 2019-06-25

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Marketing Status

Active

Unit Price (US$)

0.549

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

LDF25PT-TR

Package

PPACK 5

Packing Type

Tape And Reel

Unit Price (US$)

0.549*

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Marketing Status

Active

Unit Price (US$)

0.549

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

LDF18PT-TR

Package

PPACK 5

Packing Type

Tape And Reel

Unit Price (US$)

0.549*

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

1

Output Current (A) (nom)

1

Marketing Status

Active

Unit Price (US$)

0.549

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

LDF33DT-TR

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.549*

Distributor availability ofLDF33DT-TR

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地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1324 1 Order Now
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Farnell Element14 EUROPE 6048 1 Order Now

代理商库存报告日期: 2019-06-25

代理商名称

DIGIKEY

库存

1324

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

2181

Min.Order

1

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WORLDWIDE Order Now

Farnell Element14

库存

6048

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-06-25

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

1

Marketing Status

Active

Unit Price (US$)

0.549

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

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型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LDF18PT-TR
Active
PPACK 5 工业 Ecopack2
LDF25PT-TR
Active
PPACK 5 工业 Ecopack2
LDF33DT-TR
Active
DPAK 工业 Ecopack2
LDF33PT-TR
Active
PPACK 5 工业 Ecopack2
LDFPT-TR
Active
PPACK 5 工业 Ecopack2
LDFPUR
Active
DFN6 3x3 工业 Ecopack2
LDFPVR
Active
DFN6 2x2 工业 Ecopack2

LDF18PT-TR

Package:

PPACK 5

Material Declaration**:

Marketing Status

Active

Package

PPACK 5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDF25PT-TR

Package:

PPACK 5

Material Declaration**:

Marketing Status

Active

Package

PPACK 5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDF33DT-TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDF33PT-TR

Package:

PPACK 5

Material Declaration**:

Marketing Status

Active

Package

PPACK 5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDFPT-TR

Package:

PPACK 5

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PPACK 5

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDFPUR

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDFPVR

Package:

DFN6 2x2

Material Declaration**:

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.