TPS40057能做18-36V输入电压,-5V1A输出的BUCK电路吗???该电路的模型是不是要求芯片输入电压范围≥41V呢???
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有没有能输入电压范围比TPS40057大且满足我≥41V要求的芯片,替代TPS40057的芯片???
也可以参考TPS40060,输入范围10V到55V,和TPS40057是pin to pin的,参数基本一样。
过高的电压会导致过高的损耗,建议如果系统中有较低的电压值,可以从那个电压上再转-5V。