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TPS51125: 芯片有发热,静态电流比较大

Part Number: TPS51125
Other Parts Discussed in Thread: TPS51120,

TPS51125和TPS51120对比发现51125芯片发热比较大,在3.3V 1.8A负载下,51125的温度比电感还高,51120正常温度; 静态不接负载情况下,51125消耗掉输入电15V 40+mA,而51120才10不到。不知道是否正常情况,感觉有点怪怪的