A2557SEB
Power management
Allegro MicroSystemsBrandedA2557SEBIntegrated circuit electronic chips use1Encapsulated, with a working temperature range of-20°C ~ 85°C（TA）,The voltage is4.75V ~ 5.25V,use28-LCC（J 形引线）Packaging technology，nowA2557SEBChip inventory is18995individual。
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