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    1. Home/
    2. All Categories/
    3. Integrated Circuits - ICs/
    4. Interface ICs/
    5. L7981A STMicroelectronics

    L7981A [STMicroelectronics]

    L7981A
    L7981A

    Part No:

    L7981A

    Category:

    Interface ICs

    Manufacturer:

    STMicroelectronics

    Description:

    8 Terminals 4.5V 8-Pin L7981 DC DC Voltage Regulator SWITCHING REGULATOR 1 Outputs 250kHz~1MHz Tube 8-SOIC (0.154, 3.90mm Width) Exposed Pad

    RoHS Status:

    Product FAQ

    1. Is L7981A available for RFQ?

    Yes. L7981A 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 L7981A?

    Pricing for L7981A 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 L7981A?

    L7981A is a STMicroelectronics Interface ICs with Packaging: Tube and Moisture Sensitivity Level (MSL): 3 (168 Hours) and Peak Reflow Temperature (Cel): 260. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for L7981A?

    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 L7981A 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 L7981A?

    Yes. If L7981A 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:

    L7981A

    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

    Datasheet:

    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
    Lifecycle Status
    ACTIVE (Last Updated: 6 months ago)
    Factory Lead Time
    11 Weeks
    Contact Plating
    Tin
    Mount
    Surface Mount
    Mounting Type
    Surface Mount
    Package / Case
    8-SOIC (0.154, 3.90mm Width) Exposed Pad
    Number of Pins
    8
    Operating Temperature
    -40°C~150°C TJ
    Packaging
    Tube
    JESD-609 Code
    e3
    Part Status
    Active
    Moisture Sensitivity Level (MSL)
    3 (168 Hours)
    Number of Terminations
    8
    ECCN Code
    EAR99
    Terminal Position
    DUAL
    Peak Reflow Temperature (Cel)
    260
    Base Part Number
    L7981
    Function
    Step-Down
    Number of Outputs
    1
    Output Voltage
    28V
    Output Type
    Adjustable
    Max Output Current
    3A
    Operating Supply Voltage
    28V
    Voltage - Input (Min)
    4.5V
    Input Voltage-Nom
    12V
    Analog IC - Other Type
    SWITCHING REGULATOR
    Output Configuration
    Positive
    Max Output Voltage
    28V
    Voltage - Output (Min/Fixed)
    0.6V
    Topology
    Buck
    Control Mode
    VOLTAGE-MODE
    Frequency - Switching
    250kHz~1MHz
    Control Technique
    PULSE WIDTH MODULATION
    Synchronous Rectifier
    No
    Min Output Voltage
    600mV
    Length
    4.9mm
    Width
    3.9mm
    REACH SVHC
    No SVHC
    RoHS Status
    RoHS Compliant

    Products Detail

    L7981A Overview


    optimized performance is achieved by utilizing the Tube package in this voltage regulator. Throughout this voltage regulator, there are 8 terminations. There are two types of analog ICs in this voltage regulator 12v: SWITCHING REGULATOR ICs, which are the ones used in older voltage regulator 12vs. The space-saving 8-SOIC (0.154, 3.90mm Width) Exposed Pad package is available for this voltage regulator. The voltage regulator 12v has 1 outputs. The adjusting voltage regulator generates Adjustable output. As the name implies, this voltage regulator 12v is designed for mounting on a Surface Mount bracket. During switching regulator operation, the operating temperature should remain at -40°C~150°C TJ. This voltage regulator 12v reaches a switching frequency of 250kHz~1MHz. The regulator is capable of operating with a dc to dc voltage regulator's minimum input voltage of 4.5V. As shown in the table below, adjusting voltage regulator's output voltage (Min/Fixed) is equal to 0.6V. A regulator voltage's peak reflow temperature amounts to 260 being indestructible. The voltage regulator 12v is designed to provide a nominal input voltage of 12V for operation. In terms of category, this voltage regulator 12v falls into the Switching Regulator or Controllers category. In the particular voltage regulators, the L7981 family is represented. A voltage of 28V volts can be generated by DC DC switching regulator. There are 8 pins used for switching regulator operation. For this switching regulator, we recommend keeping the output voltage at at least 600mV volts. A 3A A maximum output current is required to meet the switching regulator operation requirements. With a maximum output voltage of 28V, DC DC switching regulator has a very high efficiency. With 28V as the supply voltage, this DC-DC switching regulator will operate.

    L7981A Features


    1 outputs
    Peak reflow temperature (Cel) of 260
    8 pins
    Operating supply voltage of 28V


    L7981A Applications


    There are a lot of STMicroelectronics
    L7981A Voltage Regulators applications.


    • CMM
    • Various precision measuring instruments
    • Various precision measuring detectors
    • Flaw detection equipment
    • Balance equipment
    • Industrial robots
    • Industrial controllers
    • Die casting equipment
    • Injection molding machinery
    • Various CNC machine tools

    Documents

    Datasheets:

    L7981L7981A-STMicroelectronics-datasheet-33008783.pdfL7981A-STMicroelectronics-datasheet-10837872.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
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