 PWM controller (SMPS) SG3525AN $5.55 |  MOSFET driver TC1427CPA $4.91 |  MC33178P dual op-amp $2.78 |
 LM393 dual comparator $1.45 |  Dual low-noise op amp MC33078 $1.85 |  MOC8101 opto isolator $1.45 |
 556 dual timer $1.45 |  339 quad comparator $1.45 |  LM13600 dual transconductance amp $3.90 |
 LM311 voltage comparator $1.45 |  IR2110 MOSFET driver (SMPS) $7.46 |  TOP210 Housekeeping supply controller (SMPS) $3.99 |
 NE5517D dual transconductance amp $5.92 |  LM311 voltage comparator IC $1.45 |  5532 dual op amp $1.45 |