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  • The ST730 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 ST730 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, 1 μA max. in shutdown
    • High output voltage accuracy: ± 0.5% @ 25 °C, ± 2.5% across temperature range
    • Output current up to 300 mA
    • Fixed output voltage versions, starting from 1.2 V to 12 V with 100 mV step
    • Adjustable voltage version, starting from 1.2 V to VIN - VDROP
    • Stable with low ESR capacitors (0.47 µF min.)
    • Thermal shutdown protection
    • Current limit and SOA protection
    • -40 °C to +125 °C operating temperature range

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS13036
      300 mA, 28 V low-dropout voltage regulator, with 5 μA quiescent current
      3.0
      832.96 KB
      PDF
      DS13036

      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**
ST730M33R
Active
SOT23-5L Industrial Ecopack2
ST730M50R
Active
SOT23-5L Industrial Ecopack2
ST730MR
Active
SOT23-5L Industrial Ecopack2

ST730M33R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST730M50R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST730MR

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
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Output Voltage (V) (nom)
Budgetary Price (US$)*/Qty
More info
min
max
ST730M33R Available at 2 distributors

Distributor availability ofST730M33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2975 1 Order Now
MOUSER WORLDWIDE 2987 1 Order Now

Distributor reported inventory date: 2020-07-31

Distributor Name

DIGIKEY

Stock

2975

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2987

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-31

Get sample
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 - 0.24 / 1k
MORE INFO

Output Tolerance (typ):

0.5

Output Current (A) (nom):

0.3

Unit Price (US$):

0.24

Country of Origin:

MALAYSIA

ST730M50R Available at 2 distributors

Distributor availability ofST730M50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1000 1 Order Now
MOUSER WORLDWIDE 1000 1 Order Now

Distributor reported inventory date: 2020-07-31

Distributor Name

DIGIKEY

Stock

1000

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-31

Get sample
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 -
MORE INFO

Output Tolerance (typ):

0.5

Output Current (A) (nom):

0.3

Unit Price (US$):

-

Country of Origin:

MALAYSIA

ST730MR Available at 5 distributors

Distributor availability ofST730MR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 13 1 Order Now
COMPEL EUROPE 481 1 Order Now
AVNET AMERICA 990 0 Order Now
FUTURE WORLDWIDE 580 1 Order Now
Farnell Element14 EUROPE 73 1 Order Now

Distributor reported inventory date: 2020-07-31

Distributor Name

DIGIKEY

Stock

13

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

481

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

990

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

580

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

73

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-31

Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 - 0.24 / 1k
MORE INFO

Output Tolerance (typ):

0.5

Output Current (A) (nom):

0.3

Unit Price (US$):

0.24

Country of Origin:

MALAYSIA

ST730M33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.24 / 1k

Distributor availability ofST730M33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2975 1 Order Now
MOUSER WORLDWIDE 2987 1 Order Now

Distributor reported inventory date: 2020-07-31

Distributor Name

DIGIKEY

Stock

2975

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2987

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-31

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

-

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.24 / 1k

Country of Origin

MALAYSIA

ST730M50R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofST730M50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1000 1 Order Now
MOUSER WORLDWIDE 1000 1 Order Now

Distributor reported inventory date: 2020-07-31

Distributor Name

DIGIKEY

Stock

1000

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-31

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

-

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

Country of Origin

MALAYSIA

ST730MR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.24 / 1k

Distributor availability ofST730MR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 13 1 Order Now
COMPEL EUROPE 481 1 Order Now
AVNET AMERICA 990 0 Order Now
FUTURE WORLDWIDE 580 1 Order Now
Farnell Element14 EUROPE 73 1 Order Now

Distributor reported inventory date: 2020-07-31

Distributor Name

DIGIKEY

Stock

13

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

481

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

990

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

580

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

73

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-31

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

-

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.24 / 1k

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