[原创] Maxim MAX77812 20A用户配置四相降压电源解决方案

Maxim公司的MAX77812是20A用户配置高效四相降压电源转换器,每相最大输出电流5A,VIN电压2.5V-5.5V,可调输出电压0.250V 到1.525V,每步5mV,输出精度±0.5%,5个用户可选择的相配置,峰值效率91%(VIN = 3.8V, VOUT = 1.1V),具有自动(SKIP/PWM)和强迫PWM模式,3.4MHz高速I2C和30MHz SPI 接口,主要用在CPU/GPU,FPGA和DSP电源,AR/VR耳机和游戏控制台,锂电池电源的设备,以及空间受限的手持设备.本文介绍了MAX77812主要优势和特性,框图和应用电路,以及评估板MAX77812 EVK主要特性,各种相配置硬件建立图,电路图,材料清单和PCB设计图.

The MAX77812 is a quad-phase high-efficiency step-down (buck) converter capable of delivering up to 20A of maximum current. Programmable startup/shutdown sequence and user-selectable phase configurations make the MAX77812 ideal for powering the latest generations of processors. With high-efficiency and small solution size, the MAX77812 is optimized for space constrained single-cell battery powered applications.
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