A5970AD

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Up to 1 A step down switching regulator for automotive applications

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Product overview

Description

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.

  • All 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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V
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Output
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A
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Output Power: 0

EDA Symbols, Footprints and 3D Models

STMicroelectronics - A5970AD

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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.

Sample & Buy

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A5970ADTR Available at distributors

Distributor availability of A5970ADTR

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Active
EAR99 NEC Tape and Reel SO-8 -40 125 CHINA

A5970ADTR Active

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

A5970ADTR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Country of Origin:

CHINA

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Distributor reported inventory date:

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(*) 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