This part is a kind of semiconductor called KIA494AP.

Function of this product has Voltage-Mode PWM Controller IC.

Manufacturers : KEC

Image and pinout :

Some of the text within the PDF file :

KEC m SEMICONDUCTOR KIA494AP/AF TECHNICAL DATA BIPOLAR LINEAR INTEGRATED CIRCUIT Voltage-Mode PWM Controller IC The KIA494AP/AF incorporates on a single monolithic chip all the functions required in the construction of a pulse-widthmodulation control circuit. Designed primarily for power supply control, this device offers the systems engineer the flexibility to tailor the power supply control circuitry to a specific application. The KIA494AP/AF contains two error amplifiers, an on-chip adjustable oscillator, a dead-tme control(DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision requlator, and output-control circuits. The error amplifiers exhibit a common-mode voltage range from -0.3V to Vcc -2V. The dead-time control comparator has a fixed offset that provides ap [ ... ]

KIA494AP PDF Datasheet Download