MAX5987AETE+: FAQ

MAX5987AETE+: FAQ
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    MAX5987A工作在3.3V21.5A输出时，是否存在过热的情况？

    MAX5987A在5V/1A输出的效率有~87%, 其总损耗为Pin-Pout=5W/0.87-5W=~0.75W。 除去电感等外部损耗，MAX5987A自身的损耗仅为~0.5W；根据MAX5987A封装热阻，0.5W损耗产生温升：0.5W/(28.6mW/C)=~17.5°C。 我这边没有3.3V输出的效率，但根据经验来看，3.3V的效率往往会比5V输出略低。即使按比较差的情况计算：低5…

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