This part is a kind of semiconductor called IP3526A.

Function of this product has ADVANCED REGULATING PULSE WIDTH MODULATOR.

Manufacturers : Seme LAB

Image and pinout :

Some of the text within the PDF file :

LAB TOP VIEW +ERROR 1 –ERROR 2 COMPENSATION 3 CSOFTSTART 4 RESET 5 –CURRENT SENSE 6 +CURRENT SENSE 7 SHUTDOWN 8 R TIMING 9 18 17 16 15 14 13 12 11 10 SEME IP1526A SERIES VREF +VIN OUTPUT B GROUND +VCOLLECTOR OUTPUT A SYNC R DEADTIME C TIMING ADVANCED REGULATING PULSE WIDTH MODULATOR FEATURES • • • • • • • • • • • • • • • • Low drain current 8 to 35V operation High performance 5V ±1% reference Low t.c. 1Hz to 400kHz oscillator range Dual 100mA source/sink outputs Digital current limiting Double pulse suppression Programmable deadtime Accurate current limit sense voltage Undervoltage lockout Single Pulse metering Programmable soft start Wide current limit common mode range TTL/CMOS compatible logic ports Symmetry correction capability Guaranteed 6 uni [ ... ]

IP3526A PDF Datasheet Download