请问,按照TPS61021A模块的典型电路设计,原理图如下,为什么在输入是1.8~3.2V的时候,输出不是3.3V,而是3.5V呢?请大侠指教。
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Hi
用示波器看一下,3.3V是否是不稳定的,所以导致万用表测量导致示数偏高?
在你的电路中不需要用电感隔离功率GND和模拟GND, 建议换成0欧姆,或者用短导线连接,看能否正常?
如仍不能稳定,再确认你的layout, 可参照datasheet.