LDF

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Design Win

1 A Very low drop voltage regulator

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Product overview

Description

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.

  • All features

    • 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

EDA Symbols, Footprints and 3D Models

STMicroelectronics - LDF

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LDFPUR
Active
DFN6 3x3 Industrial Ecopack2
LDFPVR
Active
DFN6 2x2 Industrial 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**:

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.

Sample & Buy

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Temperature (°C)
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Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
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LDFPVR
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LDFPUR
Available at distributors

Distributor availability of LDFPUR

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LDFPVR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

LDFPVR

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

-

Output Tolerance (typ):

1

Output Current (A) (nom):

1

Distributor Name

Distributor reported inventory date:

LDFPUR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

LDFPUR

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

-

Output Tolerance (typ):

1

Output Current (A) (nom):

1

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