目前用到2个批次的LP2980-ADJ,其中批次#1的输出电压正确(4.84V),但另外一个批次#2的输出电压只有1.64V,很是奇怪?难道#2的规格不是LP2980-ADJ?
PS:芯片正面标记都是L06B,#1反面标记为MBA , #2反面标记为251.
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目前用到2个批次的LP2980-ADJ,其中批次#1的输出电压正确(4.84V),但另外一个批次#2的输出电压只有1.64V,很是奇怪?难道#2的规格不是LP2980-ADJ?
PS:芯片正面标记都是L06B,#1反面标记为MBA , #2反面标记为251.