[原创] Maxim MAX77812四相大电流降压稳压器解决方案

Maxim公司的MAX77812是四相大电流降压稳压器,输入电压从2.5V到5.5V,输出电压从0.25V到1.525V,每步5mV,最大输出电流20A,DC输出电压精度±0.5%, 3.8VIN, 1.1VOUT,L = 220nH (9mΩ DCR)时的峰值效率91%,主要用在智能手机和平板电脑,游戏控制台,DSLR照相机,无人驾驶飞机,微处理器(CPU/GPU)和FPGA以及通信模块.本文介绍了MAX77812主要优势和特性,框图,应用框图以及评估板MAX77812 EVK主要特性,电路图,材料清单和PCB设计图.

The MAX77812 is a quad-phase, high-current, buck regulator for multicore applications processors in the lat­est smart phones and tablets. The MAX77812 achieves world-class transient response with miniature PCB foot­print through the use of small inductors and output capaci­tors. Differential remote sense feedback enables tight DC and AC accuracy at the point of load. The MAX77812’s flexible architecture allows user-selectable phase configu­rations such as 4, 3 + 1, 2 + 2, 2 + 1 + 1, and 1 + 1 + 1 + 1.
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