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  • The A5970AD is a step-down monolithic power switching regulator with a minimum switch current limit of 1.35 A so it is able to deliver up to 1 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 switching element to minimize the size of the external components.
    An internal oscillator fixes the switching frequency at 500 kHz. Having a minimum input voltage of 4 V only it fits the automotive applications requiring the device operation even in cold crank conditions. 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 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
    • 500 kHz Internally fixed frequency
    • Voltage feed-forward
    • Zero load current operation
    • Internal current limiting
    • Inhibit for zero current consumption
    • Synchronization
    • Protection against feedback disconnection
    • Thermal shutdown

Circuit Diagram

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CAD/EDA Symbols, Footprints and Models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
A5970ADTR
Active
SO-8 Automotive Ecopack2

A5970ADTR

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.

eDesignSuite

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output

V This option is required and must be a number.
A This option is required and must be a number.

LED Driver

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

LED custom

V This option is required.
A This option is required.
Ω This option is required.

LEDs

This option is required. And must be a whole positive number between 1 and 20.
This option is required. And must be a whole positive number between 1 and 20.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
A5970ADTR Available at 3 distributors

Distributor availability ofA5970ADTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3039 1 Order Now
ARROW EUROPE 216 0 Order Now
MOUSER WORLDWIDE 3760 1 Order Now

Distributor reported inventory date: 2020-09-24

Distributor Name

DIGIKEY

Stock

3039

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

216

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3760

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-09-24

Sample & Buy Buy now
Active
EAR99 NEC Tape And Reel SO-8 -40 125 CHINA 1.363 / 1k

A5970ADTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.363 / 1k

Distributor availability ofA5970ADTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3039 1 Order Now
ARROW EUROPE 216 0 Order Now
MOUSER WORLDWIDE 3760 1 Order Now

Distributor reported inventory date: 2020-09-24

Distributor Name

DIGIKEY

Stock

3039

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

216

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3760

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-09-24

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

1.363 / 1k

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