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TPS73719是固定输出1.9V的电源芯片吗？我买的为什么是可调节的？经过调节以后才可以得到1.9V。固定输出1.9V的电源芯片型号是TPS73719吗？
再确认一下购买的芯片型号，TPS73719是固定输出的
是TPS73719， 但是输出与输入一样是5V。
输出等于输入？取下来用表打一下，是不是击穿了？
