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    1. Home/
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    5. STCH03LTR STMicroelectronics

    STCH03LTR [STMicroelectronics]

    STCH03LTR
    STCH03LTR

    Part No:

    STCH03LTR

    Category:

    Interface ICs

    Manufacturer:

    STMicroelectronics

    Description:

    The STCH03 current-mode controller is designed for an offline quasi-resonant ZVS (zero-voltage-switching at switch turn-on) flyback converter.

    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
    Product FAQ

    1. Is STCH03LTR available for RFQ?

    Yes. STCH03LTR 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 STCH03LTR?

    Pricing for STCH03LTR 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 STCH03LTR?

    STCH03LTR is a STMicroelectronics Interface ICs with Junction Temperature: -40°C ~ 150°C and Storage Temperature: -55°C ~ 150°C. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for STCH03LTR?

    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 STCH03LTR 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 STCH03LTR?

    Yes. If STCH03LTR 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:

    STCH03LTR

    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
    Junction Temperature
    -40°C ~ 150°C
    Operating Voltage
    11.5V ~ 23V
    Package
    SO8
    Storage Temperature
    -55°C ~ 150°C
    Max Frequency
    154kHz
    Quiescent Current
    290µA
    STCH03 OVP Mode
    auto-restart
    STCH03 Packing
    Tube
    STCH03L OVP Mode
    latched
    STCH03TR Packing
    Tape and reel

    Products Detail

    The STCH03 is a current-mode PWM controller for offline quasi-resonant ZVS flyback converters. It integrates a 650V HV start-up circuit with zero power consumption, supports constant current (CC) regulation using primary-sensing feedback, and features low standby power consumption (under 10 mW at 230 VAC). It includes protections such as overvoltage protection (OVP), undervoltage protection (UVP), overtemperature protection (OTP), and hiccup-mode protection. The device operates in quasi-resonant mode with frequency jittering for EMI suppression and burst-mode operation for light loads, along with adaptive UVLO and leading-edge blanking for noise immunity.

    Key Features

    • Input voltage feedforward compensation for mains-independent CC regulation
    • Embedded thermal shutdown
    • Intelligent frequency jitter for EMI suppression
    • SO8 package
    • 650 V embedded HV start-up circuit with zero power consumption
    • Quasi-resonant (QR) zero-voltage-switching (ZVS) operation
    • Accurate and adjustable output OVP with options auto-restart (STCH03) or latched (STCH03L)
    • Output undervoltage protection (UVP) with auto-restart
    • Burst-mode operation for light loads
    • Adaptive UVLO
    • Leading-edge blanking on current sense input

    Application scenarios

    • AC-DC chargers for smartphones
    • tablets
    • camcorders and other handheld equipment; AC/DC adapters for STB
    • notebooks and auxiliary power supplies; USB power delivery fast charger
    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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