KA7553A Datasheet - Fairchild

KA7553A - 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.

KA7553A Features

* Built-in drive circuits for direct connection power MOSFET (lO = ±1.5A)

* Wide operating frequency range (5kHz ~ 600kHz)

* Pulse by pulse over current limiting

* Over load protection

* On/off control by external trigger

* Internal UVLO

* Low

KA7553A_FairchildSemiconductor.pdf