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

Download datasheet Order Direct
Overview
Online design
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Partner products
Sales Briefcase

Product overview

Description

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.
  • All 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

EDA Symbols, Footprints and 3D Models

STMicroelectronics - ST732

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST732M28R
Active
SOT23-5L Industrial Ecopack2
ST732M30R
Active
SOT23-5L Industrial Ecopack2
ST732M33R
Active
SOT23-5L Industrial Ecopack2
ST732M36R
Active
SOT23-5L Industrial Ecopack2
ST732M50R
Active
SOT23-5L Industrial Ecopack2

ST732M28R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST732M30R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST732M33R

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST732M36R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

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
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Output Voltage (V) (nom)
Budgetary Price (US$)*/Qty
More info
min
max
ST732M50R Available at 1 distributors

Distributor availability ofST732M50R

Distributor Name
Region Stock Min. Order Third party link
ANGLIA Live EUROPE 100 1 Order Now

Distributor reported inventory date: 2021-09-14

Distributor Name

ANGLIA Live

Stock

100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-14

Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 - 0.308 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.3

Unit Price (US$):

0.308

Country of Origin:

MALAYSIA

ST732M33R Available at 2 distributors

Distributor availability ofST732M33R

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 2240 1 Order Now
ANGLIA Live EUROPE 3100 1 Order Now

Distributor reported inventory date: 2021-09-16

Distributor Name

Farnell Element14

Stock

2240

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-16

Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 - 0.308 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.3

Unit Price (US$):

0.308

Country of Origin:

MALAYSIA

ST732M36R Available at 2 distributors

Distributor availability ofST732M36R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 287 1 Order Now
Farnell Element14 EUROPE 302 1 Order Now

Distributor reported inventory date: 2021-09-16

Distributor Name

DIGIKEY

Stock

287

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

302

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-16

Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 - 0.308 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.3

Unit Price (US$):

0.308

Country of Origin:

MALAYSIA

ST732M30R Available at 1 distributors

Distributor availability ofST732M30R

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 600 1 Order Now

Distributor reported inventory date: 2021-09-16

Distributor Name

Farnell Element14

Stock

600

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-16

Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 - 0.28 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.3

Unit Price (US$):

0.28

Country of Origin:

MALAYSIA

ST732M28R Available at 3 distributors

Distributor availability ofST732M28R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2470 1 Order Now
MOUSER WORLDWIDE 2945 1 Order Now
Farnell Element14 EUROPE 558 1 Order Now

Distributor reported inventory date: 2021-09-16

Distributor Name

DIGIKEY

Stock

2470

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2945

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

558

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-16

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 - 0.308 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.3

Unit Price (US$):

0.308

Country of Origin:

MALAYSIA

ST732M50R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.308 / 1k

Distributor availability ofST732M50R

Distributor Name
Region Stock Min. Order Third party link
ANGLIA Live EUROPE 100 1 Order Now

Distributor reported inventory date: 2021-09-14

Distributor Name

ANGLIA Live

Stock

100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-14

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)

2

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.308 / 1k

Country of Origin

MALAYSIA

ST732M33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.308 / 1k

Distributor availability ofST732M33R

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 2240 1 Order Now
ANGLIA Live EUROPE 3100 1 Order Now

Distributor reported inventory date: 2021-09-16

Distributor Name

Farnell Element14

Stock

2240

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-16

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)

2

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.308 / 1k

Country of Origin

MALAYSIA

ST732M36R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.308 / 1k

Distributor availability ofST732M36R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 287 1 Order Now
Farnell Element14 EUROPE 302 1 Order Now

Distributor reported inventory date: 2021-09-16

Distributor Name

DIGIKEY

Stock

287

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

302

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-16

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)

2

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.308 / 1k

Country of Origin

MALAYSIA

ST732M30R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.28 / 1k

Distributor availability ofST732M30R

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 600 1 Order Now

Distributor reported inventory date: 2021-09-16

Distributor Name

Farnell Element14

Stock

600

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-16

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)

2

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.28 / 1k

Country of Origin

MALAYSIA

ST732M28R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.308 / 1k

Distributor availability ofST732M28R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2470 1 Order Now
MOUSER WORLDWIDE 2945 1 Order Now
Farnell Element14 EUROPE 558 1 Order Now

Distributor reported inventory date: 2021-09-16

Distributor Name

DIGIKEY

Stock

2470

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2945

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

558

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-16

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)

2

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.308 / 1k

Country of Origin

MALAYSIA

(*) 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