PMIC:TPS65217C
CPU: AM3352
参考电路是BB BLACK的。
问题描述如下:
1. TPS65217C AC 输入+5V;
2. TPS65217C SYS 上电50ms后为5V,维持 60ms后变为1.12V,并持续输出1.12v不变
3.TPS65217C LDO4上电后为0.73V,106ms后变为1.6V,4ms后变为0.73V并持续不变
4 TPS65217C 其他输出上电106ms后输出正常,4ms后变为0
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那尴尬了,我都是在淘宝买的散货
请问,你是在哪里买的正规片子