This article introduces the single-chip solution of the SOC chip CSU8RP3119 of Xinhai Technology Co., Ltd. for mobile power products. By using the chip\'s two high-speed PWMs (16M) and four high-performance ADCs (12bit, dead zone less than 3mV) and the unique patented reference source digital correction technology, CSU8RP3119 can achieve a synchronous rectification mobile power supply with an efficiency of up to 93% without the need for other peripheral ICs. Under the condition of 2.1A output, the efficiency is still higher than 88%.
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