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    1. Home/
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    3. Integrated Circuits - ICs/
    4. Power Management ICs/
    5. RT4803AWSC RICHTEK

    RT4803AWSC [RICHTEK]

    RT4803AWSC
    RT4803AWSC

    Part No:

    RT4803AWSC

    Category:

    Power Management ICs

    Manufacturer:

    RICHTEK

    Description:

    The RT4803A is a 2.5MHz synchronous boost regulator designed to provide programmable output voltage from 2.85V to 4.4V for systems using advanced Li-Ion battery chemistries, even when battery voltage is below system minimum.

    RoHS Status:

    Product FAQ

    1. Is RT4803AWSC available for RFQ?

    Yes. RT4803AWSC by RICHTEK 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 RT4803AWSC?

    Pricing for RT4803AWSC 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 RT4803AWSC?

    RT4803AWSC is a RICHTEK Power Management ICs with Quiescent Current Forced Bypass Without Low Typ: 15µA and Quiescent Current Forced Bypass Low Typ: 4µA. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for RT4803AWSC?

    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 RT4803AWSC 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 RT4803AWSC?

    Yes. If RT4803AWSC is unavailable, obsolete, or does not meet your required lead time, we can help check similar RICHTEK Power Management ICs parts or compatible alternatives.

    RFQ

    Part Number:

    RT4803AWSC

    Manufacturer:

    RICHTEK

    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
    Input Voltage
    1.8V ~ 5V
    Output Voltage
    2.85V ~ 4.4V
    Efficiency
    95%
    Package
    WL-CSP-16B 1.67x1.67 (BSC)
    RoHS Status
    RoHS Compliant
    RoHS Status
    RoHS Compliant
    Current Limit Forced Bypass Typ
    4000mA
    Default Output Voltage High
    3.4V
    Default Output Voltage Low
    3.15V
    Max Continuous Load Current
    2A
    Over Voltage Hysteresis
    100mV
    Over Voltage Protection Threshold
    5.7V
    Over Voltage Recovery Threshold
    5.6V
    Quiescent Current Auto Bypass Typ
    35µA
    Quiescent Current Boost Typ
    55µA
    Quiescent Current Forced Bypass Low Typ
    4µA
    Quiescent Current Forced Bypass Without Low Typ
    15µA
    Quiescent Current Shutdown Max
    1µA
    Soft Start Time
    512µs
    Switching Frequency
    2.5MHz

    Products Detail

    The RT4803A combines built-in power transistors, synchronous rectification, and low supply current to provide a compact solution for systems using advanced Li-Ion battery chemistries. It features an input voltage range of 1.8V to 5V, programmable output voltage (2.85V to 4.4V in 50mV steps), and default output settings of 3.4V (VSEL=H) or 3.15V (VSEL=L). The device guarantees output regulation up to 2000mA in boost mode, offers up to 95% efficiency, and includes multiple operation modes (forced bypass, auto bypass, boost). Protection features include over-current, under-voltage, over-voltage, and over-temperature protection. Quiescent current is less than 1µA in shutdown mode.

    Key Features

    • Input Voltage Range: 1.8V to 5V, Programmable Output Voltage: 2.85V to 4.4V (50mV/Step), Default Boost Output Voltage Setting: 3.4V (VSEL=H) and 3.15V (VSEL=L), Maximum Continuous Load Current: 2A at V_IN>2.65V Boosting V_OUT to 3.35V, Up to 95% Efficiency, nBYP (L): Forced Bypass Mode, nBYP (H): Auto Bypass Operation when V_IN > V_OUT, Internal Synchronous Rectifier, Over-Current Protection, Under-Voltage Protection, Over-Voltage Protection, Over-Temperature Protection, Ultra Low Operating Quiescent Current, Discharge Function Trigger at GPIO Manual Pull Low, Available in a WL-CSP-16B 1.67x1.67 (BSC) Package

    Application scenarios

    • Single-Cell Li-Ion
    • LiFePO4 Smart-Phones or Tablet
    • 2.5G/3G/4G Mini-Module Data Cards

    Documents

    Datasheets:

    RT4803A

    Environmental Information:

    RoHS2 Cert
    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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