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    1. Home/
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    3. Integrated Circuits - ICs/
    4. Interface ICs/
    5. A5973D STMicroelectronics

    A5973D [STMicroelectronics]

    A5973D
    A5973D

    Part No:

    A5973D

    Category:

    Interface ICs

    Manufacturer:

    STMicroelectronics

    Description:

    Up to 2 A step-down switching regulator for automotive applications. The A5973D is a step-down monolithic power switching regulator with a minimum switch current limit of 2.25 A so it is able to deliver up to 2 A DC current to the load depending on the application conditions.

    Datasheet:

    Product FAQ

    1. Is A5973D available for RFQ?

    Yes. A5973D by STMicroelectronics is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

    2. Why is there no fixed price for A5973D?

    Pricing for A5973D can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

    3. What are the key specifications of A5973D?

    A5973D is a STMicroelectronics Interface ICs with Thermal Resistance Junction Ambient: 40°C/W and Standby Quiescent Current Max: 100µA. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for A5973D?

    Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

    5. How soon can A5973D be shipped?

    If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

    6. Can you suggest alternatives to A5973D?

    Yes. If A5973D is unavailable, obsolete, or does not meet your required lead time, we can help check similar STMicroelectronics Interface ICs parts or compatible alternatives.

    RFQ

    Part Number:

    A5973D

    Manufacturer:

    STMicroelectronics

    Looking for Pricing? Contact us for volume pricing.

    IMPORTANT NOTICE

    Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

    Featured Product

    Stock Status:

    Available for RFQ

    Pricing:

    Request Volume Pricing

    Quote Response:

    Within 24 Hours

    Shipping:

    In-stock parts ship in 1–2 business days

    Specification

    Type
    Parameter
    Input Voltage
    4V ~ 36V
    Operating Temperature
    -40°C ~ 150°C
    Output Current
    2A
    Output Voltage
    1.235V ~ 35V
    Package
    HSOP8
    Quiescent Current
    3mA ~ 5mA
    Reference Voltage
    3.2V ~ 3.399V
    Standby Quiescent Current Max
    100µA
    Standby Quiescent Current Min
    50µA
    Switching Frequency
    212kHz ~ 280kHz
    Thermal Resistance Junction Ambient
    40°C/W

    Products Detail

    The A5973D is a step-down monolithic power switching regulator designed for automotive applications. It delivers up to 2 A DC output current with an adjustable output voltage from 1.235 V to 35 V and operates from a 4 V to 36 V input range. The device features a 3.3 V reference voltage, 250 kHz fixed switching frequency, and includes protection functions such as current limiting, thermal shutdown, and feedback disconnection protection. It is qualified following AEC-Q100 requirements and uses an HSOP8 package with exposed frame to reduce thermal resistance.

    Key Features

    • Qualified following AEC-Q100
    • 2 A DC output current
    • Operating input voltage from 4 V to 36 V
    • 3.3 V reference voltage (±2%)
    • Output voltage adjustable from 1.235 V to 35 V
    • 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
    • Synchronization
    • Protection against feedback disconnection
    • Thermal shutdown

    Application scenarios

    • Automotive applications
    • cold crank conditions

    Documents

    Datasheets:

    A5973D-STMicroelectronics-datasheet-36991644.pdfA5973D-STMicroelectronics-datasheet-77479168.pdf
    Shipping & Warranty

    Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

    Unishop Global Export: 1-7 days, $40.00

    Guaranteed Delivery: Door-to-door in 30 days

    Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

    Feature

    • 30-Day Guarantee
      30-Day Guarantee
    • Fasted Delivery
      Fasted Delivery
    • Hassle-Free Returns
      Hassle-Free Returns
    • Secure payment method
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