Up to 1.5 A step down switching regulator for automotive applications

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  • The A5972D is a step-down monolithic power switching regulator with a minimum switch current limit of 1.8 A so it is able to deliver up to 1.5 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to VIN.

    The device uses an internal P-channel DMOS transistor (with a typical RDS(on)of 250 mΩ) as a switching element to minimize the size of the external components.
    An internal oscillator fixes the switching frequency at 250 kHz. Having a minimum input voltage of 4 V only it fits the automotive applications requiring the device operation even in cold crank conditions. A pulse-by-pulse current limit with the internal frequency modulation offers an effective constant current short-circuit protection.

    Key Features

    • Qualified following the AEC-Q100 requirements (see PPAP for more details)
    • 1.5 A DC output current
    • Operating input voltage from 4 V to 36 V
    • 3.3 V / (± 2%) reference voltage
    • Output voltage adjustable from 1.235 V to VIN
    • Low dropout operation: 100% duty cycle
    • 250 kHz internally fixed frequency
    • Voltage feedforward
    • Zero load current operation
    • Internal current limiting
    • Inhibit for zero current consumption
    • Protection against feedback disconnection
    • Thermal shutdown

Circuit Diagram

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Part Number
Package
Packing Type
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Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
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A5972D013TR SO-8 Tape And Reel
Active
1.425 10000 EAR99 CHINA Check Availability

Distributor availability ofA5972D013TR

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DIGIKEY WORLDWIDE 1578 1 Order Now
MOUSER WORLDWIDE 4824 1 Order Now
RUTRONIK EUROPE 20000 2500 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

1578

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1

Region

WORLDWIDE Order Now

MOUSER

Stock

4824

Min.Order

1

Region

WORLDWIDE Order Now

RUTRONIK

Stock

20000

Min.Order

2500

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EUROPE Order Now

Distributor reported inventory date: 2019-07-16

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A5972D SO-8 Tube
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1.425 10000 EAR99 CHINA No availability of distributors reported, please contact our sales office

A5972D013TR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

1.425*

Distributor availability ofA5972D013TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1578 1 Order Now
MOUSER WORLDWIDE 4824 1 Order Now
RUTRONIK EUROPE 20000 2500 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

1578

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

4824

Min.Order

1

Region

WORLDWIDE Order Now

RUTRONIK

Stock

20000

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Marketing Status

Active

Unit Price (US$)

1.425

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

A5972D

Package

SO-8

Packing Type

Tube

Unit Price (US$)

1.425*

Marketing Status

Active

Unit Price (US$)

1.425

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

(*) 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

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Technical Documentation

    • Description Version Size Action
      DS5500
      Up to 1.5 A step-down switching regulator for automotive applications
      7.0
      1.19 MB
      PDF
      DS5500

      Up to 1.5 A step-down switching regulator for automotive applications

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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
A5972D
Active
SO-8 Automotive Ecopack2
A5972D013TR
Active
SO-8 Automotive Ecopack2

A5972D

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Automotive

RoHS Compliance Grade

Ecopack2

A5972D013TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Automotive

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.