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  • The LDK715 is a high voltage, ultra low quiescent current and low drop linear regulator capable of providing an output current in excess of 85 mA. The device operates over an input voltage range from 4.3 V to 24 V, and it is stable with output ceramic capacitors. Fault condition protection includes short-circuit current limitation. The ultra low quiescent current of 5 μA at full load makes it highly suitable for low power applications and battery-powered systems. The wide input voltage range makes the LDK715 an ideal solution for low power industrial applications. The LDK715 is available in SOT23-5, or DFN8 3x3 - 8 leads.

    Key Features

    • 4.3 V to 24 V input voltage
    • Low-dropout voltage (500 mV typ. at 85 mA)
    • Very low quiescent current (5 μA typ. at full load)
    • 85 mA guaranteed output current
    • Output voltages 3.3 V, 4.2 V and 5.0 V (other versions available on request)
    • Compatible with ceramic output capacitors from 0.47 μF to 10 μF
    • Internal current limit
    • Packages: SOT23-5L and DFN8 3x3
    • Temperature range: from -40 °C to 125 °C

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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS10469
      High input voltage 85 mA LDO linear regulator
      3.0
      718.31 KB
      PDF
      DS10469

      High input voltage 85 mA LDO linear regulator

Publications and Collaterals

    • Description Version Size Action
      Linear and Switching Voltage Regulators Selection Guide 3.0
      370.88 KB
      PDF

      Linear and Switching Voltage Regulators Selection Guide

    • Description Version Size Action
      Low-dropout (LDO) linear voltage regulators Quick Reference Guide 2.1
      1.78 MB
      PDF
      Power management for handheld and portable 2.0
      1.09 MB
      PDF

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

      Power management for handheld and portable

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LDK715M33R
Active
SOT23-5L Industrial Ecopack2
LDK715M42R
Active
SOT23-5L Industrial Ecopack2
LDK715M50R
Active
SOT23-5L Industrial Ecopack2
LDK715PU33R
Active
DFN8 3x3 Industrial Ecopack2
LDK715PU42R
Active
DFN8 3x3 Industrial Ecopack2
LDK715PU50R
Active
DFN8 3x3 Industrial Ecopack2

LDK715M33R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDK715M42R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDK715M50R

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDK715PU33R

Package:

DFN8 3x3

Material Declaration**:

Marketing Status

Active

Package

DFN8 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDK715PU42R

Package:

DFN8 3x3

Material Declaration**:

Marketing Status

Active

Package

DFN8 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDK715PU50R

Package:

DFN8 3x3

Material Declaration**:

Marketing Status

Active

Package

DFN8 3x3

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

Part Number
Order from Distributors
Order from ST
Package
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
LDK715M50R Available at 4 distributors

Distributor availability ofLDK715M50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2285 1 Order Now
ARROW EUROPE 2 0 Order Now
Farnell Element14 EUROPE 2955 1 Order Now
ANGLIA Live EUROPE 50 3000 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

DIGIKEY

Stock

2285

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2

Min.Order

0

Region

EUROPE Order Now

Farnell Element14

Stock

2955

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

50

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-10

Buy now SOT23-5L Tape And Reel 5 2 0.085
Active
EAR99 MALAYSIA 0.215 / 1k
LDK715M42R Available at 1 distributors

Distributor availability ofLDK715M42R

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 1366 1 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

Farnell Element14

Stock

1366

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-10

Get sample SOT23-5L Tape And Reel 4.2 2 0.085
Active
EAR99 MALAYSIA 0.215 / 1k
LDK715PU33R No availability of distributors reported, please contact our sales office DFN8 3x3 Tape And Reel 3.3 2 0.085
Active
EAR99 MALAYSIA 0.226 / 1k
LDK715PU50R Available at 1 distributors

Distributor availability ofLDK715PU50R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 3000 1 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

MOUSER

Stock

3000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-10

Buy now DFN8 3x3 Tape And Reel 3.3 - 0.085
Active
EAR99 MALAYSIA 0.226 / 1k
LDK715M33R Available at 4 distributors

Distributor availability ofLDK715M33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2977 1 Order Now
ARROW EUROPE 1515 0 Order Now
MOUSER WORLDWIDE 8995 1 Order Now
Farnell Element14 EUROPE 1892 1 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

DIGIKEY

Stock

2977

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1515

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

8995

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1892

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-10

Buy now SOT23-5L Tape And Reel 3.3 2 0.085
Active
EAR99 MALAYSIA 0.215 / 1k
LDK715PU42R Available at 1 distributors

Distributor availability ofLDK715PU42R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2967 1 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

DIGIKEY

Stock

2967

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-10

Buy now DFN8 3x3 Tape And Reel 4.2 2 0.085
Active
EAR99 MALAYSIA 0.226 / 1k

LDK715M50R

Package

SOT23-5L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.215 / 1k

Distributor availability ofLDK715M50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2285 1 Order Now
ARROW EUROPE 2 0 Order Now
Farnell Element14 EUROPE 2955 1 Order Now
ANGLIA Live EUROPE 50 3000 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

DIGIKEY

Stock

2285

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2

Min.Order

0

Region

EUROPE Order Now

Farnell Element14

Stock

2955

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

50

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-10

Output Voltage (V) (nom)

5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.085

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.215 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDK715M42R

Package

SOT23-5L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.215 / 1k

Distributor availability ofLDK715M42R

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 1366 1 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

Farnell Element14

Stock

1366

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-10

Output Voltage (V) (nom)

4.2

Output Tolerance (typ)

2

Output Current (A) (nom)

0.085

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.215 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDK715PU33R

Package

DFN8 3x3

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.226 / 1k

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.085

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.226 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDK715PU50R

Package

DFN8 3x3

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.226 / 1k

Distributor availability ofLDK715PU50R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 3000 1 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

MOUSER

Stock

3000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-10

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

-

Output Current (A) (nom)

0.085

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.226 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDK715M33R

Package

SOT23-5L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.215 / 1k

Distributor availability ofLDK715M33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2977 1 Order Now
ARROW EUROPE 1515 0 Order Now
MOUSER WORLDWIDE 8995 1 Order Now
Farnell Element14 EUROPE 1892 1 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

DIGIKEY

Stock

2977

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1515

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

8995

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1892

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-10

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.085

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.215 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDK715PU42R

Package

DFN8 3x3

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.226 / 1k

Distributor availability ofLDK715PU42R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2967 1 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

DIGIKEY

Stock

2967

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-10

Output Voltage (V) (nom)

4.2

Output Tolerance (typ)

2

Output Current (A) (nom)

0.085

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.226 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 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