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    1. Home/
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    4. DC/DC Converters/
    5. PT4801A Texas Instruments

    PT4801A [Texas Instruments]

    PT4801A
    PT4801A

    Part No:

    PT4801A

    Category:

    DC/DC Converters

    Manufacturer:

    Texas Instruments

    Description:

    The PT4801 Excalibur™ module is an isolated triple-output DC/DC converter that provides +15V, +3.3V, and +1.5V power supply voltages from a standard (-48V) telecom central office (CO) supply.

    Datasheet:

    Product FAQ

    1. Is PT4801A available for RFQ?

    Yes. PT4801A by Texas Instruments 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 PT4801A?

    Pricing for PT4801A 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 PT4801A?

    PT4801A is a Texas Instruments DC/DC Converters with Over Temperature Protection: +125°C and Remote On Off Low Current: -10µA. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for PT4801A?

    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 PT4801A 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 PT4801A?

    Yes. If PT4801A is unavailable, obsolete, or does not meet your required lead time, we can help check similar Texas Instruments DC/DC Converters parts or compatible alternatives.

    RFQ

    Part Number:

    PT4801A

    Manufacturer:

    Texas Instruments

    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
    Isolation Voltage
    1500VDC
    Isolation Resistance
    10MΩ
    Line Regulation
    1.0%
    Switching Frequency
    550kHz ~ 750kHz
    Input Voltage
    36V ~ 75V
    Isolation Capacitance
    3000pF
    Load Regulation
    1.0%
    Output Power
    25W
    Operating Temperature
    -40°C ~ +85°C
    Storage Temperature
    -40°C ~ +125°C
    Package
    Vertical (suffix N), Horizontal (suffix A), SMD (suffix C)
    Weight
    50 grams
    Case Temperature
    +100°C
    Efficiency Typ1
    78%
    Efficiency Typ2
    81%
    Flammability
    UL 94V-O
    Input Capacitance
    0.76µF
    Input Voltage Surge Max
    80V
    Mechanical Shock
    500 G's
    Mechanical Vibration
    20 G's
    Output1 Capacitance Max
    330µF
    Output1 Current Max
    1.25A
    Output1 Overshoot Max
    5%Vo
    Output1 Ripple Max
    150mVpp
    Output1 Voltage Max
    15.75V
    Output1 Voltage Min
    15.0V
    Output2 Adjust Max
    3.465V
    Output2 Adjust Min
    3.135V
    Output2 Capacitance Max
    330µF
    Output2 Current Max
    3.0A
    Output2 Overshoot Max
    150mVpp
    Output2 Ripple Max
    50mVpp
    Output2 Voltage Max
    3.35V
    Output2 Voltage Min
    3.25V
    Output3 Adjust Max
    1.5V
    Output3 Adjust Min
    1.425V
    Output3 Capacitance Max
    330µF
    Output3 Current Max
    2.0A
    Output3 Overshoot Max
    150mVpp
    Output3 Ripple Max
    50mVpp
    Output3 Voltage Max
    1.55V
    Output3 Voltage Min
    1.45V
    Over Temperature Protection
    +125°C
    Remote On Off High Max
    15V
    Remote On Off High Min
    2.5V
    Remote On Off Low Current
    -10µA
    Remote On Off Low Max
    0.8V
    Remote On Off Low Min
    -0.2V
    Standby Current
    16mA
    Total Output Current Max
    6.0A
    Transient Response Time
    300µSec
    Uvlo Typ Decrease
    33V
    Uvlo Typ Increase
    34V

    Products Detail

    The PT4801 is a space-saving, isolated triple-output DC/DC converter designed for DSL applications. It provides +15V, +3.3V, and +1.5V outputs from a 36V to 75V input range. Features include fixed frequency operation, over-temperature shutdown, under-voltage lockout, current limit, and short circuit protection on all outputs. The module requires no heatsink and occupies only 1.6 sq. in. of PCB area. It is safety approved to UL 60950, CSA C22.2 60950, and VDE EN60950.

    Key Features

    • DSL Triple Outputs: +15V, +3.3V, +1.5V (Independently Regulated)
    • Input Voltage Range: 36V to 75V
    • 1500VDC Isolation
    • On/Off 'Standby' Control
    • Current Limit
    • Short Circuit Protection (All Outputs)
    • Fixed Frequency Operation
    • Over-Temperature Shutdown
    • Under-Voltage Lockout
    • Space Saving Package: 1.6 sq. in. PCB Area (suffix N)
    • Solderable Copper Case
    • Safety Agency Approvals: UL 60950, CSA C22.2 60950, VDE EN60950

    Application scenarios

    • DSL line cards (8 or 16-channel ADSL/DSL)
    • mixed signal circuitry
    • chip-sets requiring power-up/down sequencing

    Documents

    Datasheets:

    PT4801
    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
      Secure payment method

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