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  • SC8745QQFPR

  • SC8745QQFPR

    Descriptions
    The SC8745Q is a buck-boost converter with two low-side
    integrated power switches capable of regulating the output
    voltage at, above, or below the input voltage. The SC8745Q
    operates over 3.7V to 36V wide input voltage and can output
    1V to 29V voltage to support a variety of applications.
    The SC8745Q is suitable for USB power delivery application.
    It can work well with external USB PD controller through I2C
    interface and provide flexibility of programmable features.
    The SC8745Q employs current mode control scheme. The
    switching frequency could be set at 280kHz/420kHz/560kHz
    through I2C. The SC8745Q also provides optional spread
    spectrum to optimize EMI performance.
    The SC8745Q offers input/output over-voltage protection,
    cycle-by-cycle current limit, output short circuit protection,
    average output current limit and thermal shutdown
    protection
    The SC8745Q is available in 20-pin 3mm x 5mm     Wettable
    Flank QFN packages.  

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商品描述

Descriptions
The SC8745Q is a buck-boost converter with two low-side
integrated power switches capable of regulating the output
voltage at, above, or below the input voltage. The SC8745Q
operates over 3.7V to 36V wide input voltage and can output
1V to 29V voltage to support a variety of applications.
The SC8745Q is suitable for USB power delivery application.
It can work well with external USB PD controller through I2C
interface and provide flexibility of programmable features.
The SC8745Q employs current mode control scheme. The
switching frequency could be set at 280kHz/420kHz/560kHz
through I2C. The SC8745Q also provides optional spread
spectrum to optimize EMI performance.
The SC8745Q offers input/output over-voltage protection,
cycle-by-cycle current limit, output short circuit protection,
average output current limit and thermal shutdown
protection
The SC8745Q is available in 20-pin 3mm x 5mm Wettable
Flank QFN packages.  

Features • AEC-Q100 qualified for automotive applications: - Temperature grade 1: TA range: -40°C to 125 °C • Integrated gate driver for high-side power switches • 4V to 36V start up input voltage, support 3.7V falling VIN • 1V to 29V output voltage range • Programmable Power Supply (PPS) support for USB power delivery - Programmable reference voltage range: 0.1V – 1.123V with 1mV resolution - Programmable output current limit up to 6.35A with 50-mA step - +/- 5% accurate average output current limiting • I2C Interface for: - 280k/420k/560kHz frequency selectable - Auto PFM / Forced PWM - Spread spectrum dithering - Line drop compensation - Current limit setting • IMON for output current • External biased VCC for higher efficiency • Output OCP / SCP / OVP / TSD protection