南芯产品规格书SC8002.pdf

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SC8002 DATASHEET SOUTHCHIP SEMICONDUCTOR TECHNOLOGY (SHANGHAI) CO.,LTD SOUTHCHIP CONFIDENTIAL High Efficiency Buck Controller with Constant Power Limit 1 Description 2 Features The SC8002 is a synchronous buck controller with a • Wide input operating voltage from 4.6V to 36V wide input voltage from 4.6V to 36V. It can be • Almost 100% duty cycle operation configured as dual-outputs or single output. The SC8002 regulates the output voltage at a fixed 5V or • EN for enable logic input customized voltage by setting the divider resistor. It • Low quiescent current also provides high accurate output current limit. The • Programmable peak current limit SC8002 enters Constant Current (CC) Mode in case any of the two output channels reaches the setting • Programmable output power limit current limit. The total output power can be • PFM and PWM mode selection programmed by a resistor, which makes it easy for • Build-in line drop compensation constant power control. • Adjustable frequency 80kHz to 600kHz The SC8002 adopts frequency setting and operating modes selection for PWM and PFM mode. With • Hiccup and auto-restart minimum external components, maximum functions • Full protection of UVLO,

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