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  • The ST732 is 300 mA LDO regulator, designed to be used in several medium voltage applications.

    Ultra-low quiescent current of 5 µA makes it suitable for applications permanently connected to power supply/battery.
    This feature is also useful when electronic modules remain permanently turned on.
    The ST732 embeds protection functions, such as: current limit, short-circuit and thermal shutdown. The extended input voltage range, very low drop voltage and low quiescent current features make it suitable also for low power after-market automotive and consumer applications.

    Key Features

    • Wide input voltage range : 2.5 V to 28 V
    • Ultra-low quiescent current: typ. 5 µA at no-load, 10 µA max. across full temperature range
    • Output voltage accuracy: ± 2%
    • Output current up to 300 mA
    • Fixed output voltage versions, starting from 1.2 V with 100 mV step
    • Stable with low ESR capacitors (0.47 µF min.)
    • Thermal shutdown protection
    • Current limit protection
    • -40 °C to +125 °C operating temperature range

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS12561
      300 mA, 28 V low-dropout voltage regulator, with 5 μA quiescent current
      2.0
      715 KB
      PDF
      DS12561

      300 mA, 28 V low-dropout voltage regulator, with 5 μA quiescent current

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**
ST732M28R
Evaluation
SOT23-5L Industrial Ecopack2
ST732M33R
Active
SOT23-5L Industrial Ecopack2
ST732M36R
Evaluation
SOT23-5L Industrial Ecopack2
ST732M50R
Active
SOT23-5L Industrial Ecopack2

ST732M28R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Evaluation

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST732M33R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST732M36R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Evaluation

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST732M50R

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

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
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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
ST732M50R Available at 2 distributors

Distributor availability ofST732M50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 496 1 Order Now
MOUSER WORLDWIDE 480 1 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

DIGIKEY

Stock

496

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

480

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-10

Get sample SOT23-5L Tape And Reel - 2 0.3
Active
EAR99 MALAYSIA 0.28 / 1k
ST732M33R Available at 2 distributors

Distributor availability ofST732M33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2986 1 Order Now
MOUSER WORLDWIDE 2945 1 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

DIGIKEY

Stock

2986

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2945

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-10

Get sample SOT23-5L Tape And Reel - 2 0.3
Active
EAR99 MALAYSIA 0.28 / 1k
ST732M36R No availability of distributors reported, please contact our sales office SOT23-5L Tape And Reel - 2 0.3
Evaluation
EAR99 MALAYSIA 0.28 / 1k
ST732M28R No availability of distributors reported, please contact our sales office SOT23-5L Tape And Reel - 2 0.3
Evaluation
EAR99 MALAYSIA 0.28 / 1k

ST732M50R

Package

SOT23-5L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.28 / 1k

Distributor availability ofST732M50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 496 1 Order Now
MOUSER WORLDWIDE 480 1 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

DIGIKEY

Stock

496

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

480

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-10

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

0.3

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.28 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

ST732M33R

Package

SOT23-5L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.28 / 1k

Distributor availability ofST732M33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2986 1 Order Now
MOUSER WORLDWIDE 2945 1 Order Now

Distributor reported inventory date: 2020-07-10

Distributor Name

DIGIKEY

Stock

2986

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2945

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-10

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

0.3

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.28 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

ST732M36R

Package

SOT23-5L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.28 / 1k

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

0.3

Marketing Status

Evaluation

Budgetary Price (US$)* / Qty

0.28 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

ST732M28R

Package

SOT23-5L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.28 / 1k

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

0.3

Marketing Status

Evaluation

Budgetary Price (US$)* / Qty

0.28 / 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