SMPS Controller

The KA7552A KA7553A are switching power control IC for wide operating frequency range. The internal circuits include pulse by pulse current limiting, protection, on/off control by external trigger, low standby current, soft start, and high current totempole output for driving a Power MOSFET Maximum duty of the KA7552A is 70% and the KA7553A is 46%. When duty is maximum, the input threshold voltage of pin2 & pin8 are not same in KA7552A and KA7553A.
By Fairchild Semiconductor
KA7553A 's PackagesKA7553A 's pdf datasheet

KA7553A Pinout, Pinouts
KA7553A pinout,Pin out
This is one package pinout of KA7553A,If you need more pinouts please download KA7553A's pdf datasheet.

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