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  • SC8748Q

    Descriptions
    The SC8748Q is a buck-boost converter with four integrated
    power switches capable of regulating the output voltage at,
    above, or below the input voltage. The SC8748Q operates
    over 3.7V to 36V wide input voltage and can output 2.5V to
    20V voltage to support a variety of applications.
    The SC8748Q is suitable for a variety of multi-purpose
    automotive and industrial applications such as ADAS and
    automotive lighting application.
    The SC8748Q employs current mode control scheme. The
    quasi-constant switching frequency could be set at
    200kHz/400kHz/600kHz/1MHz through I2C. The SC8748Q
    also provides optional spread spectrum to optimize EMI
    performance.
    The SC8748Q offers output over-voltage protection, cycle- by-cycle current limit, output under-voltage protection, input
    over-voltage and thermal shutdown protection.
    The SC8748Q is available in 34-pin 4mm × 5mm × 0.85mm
    wettable flank QFN packages. 

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商品描述

Descriptions
The SC8748Q is a buck-boost converter with four integrated
power switches capable of regulating the output voltage at,
above, or below the input voltage. The SC8748Q operates
over 3.7V to 36V wide input voltage and can output 2.5V to
20V voltage to support a variety of applications.
The SC8748Q is suitable for a variety of multi-purpose
automotive and industrial applications such as ADAS and
automotive lighting application.
The SC8748Q employs current mode control scheme. The
quasi-constant switching frequency could be set at
200kHz/400kHz/600kHz/1MHz through I2C. The SC8748Q
also provides optional spread spectrum to optimize EMI
performance.
The SC8748Q offers output over-voltage protection, cycle- by-cycle current limit, output under-voltage protection, input
over-voltage and thermal shutdown protection.
The SC8748Q is available in 34-pin 4mm × 5mm × 0.85mm
wettable flank QFN packages. 

Features AEC-Q100 qualified for automotive applications: - Temperature grade 1: TA range: -40°C to 125 °C 4V to 36V start up input voltage, support 3.7V falling VIN 2.5V to 20V output voltage range Up to 3A continuous output current Programmable reference voltage range: 0.5V 2V with 10mV resolution I2C Interface for: - Converter ON/OFF - Input range selection - Output voltage dynamic scaling - 200kHz / 400kHz / 600kHz / 1MHz switching frequency - Auto PFM / Forced PWM - Spread spectrum dithering - Current limit setting - Soft-start time - Compensation network parameter - Protection mode selection - Power good threshold setting Protection features: - Output over-voltage protection - Cycle-by-cycle current limit - Output under-voltage protection - Input over-voltage protection - Thermal shutdown protection