IC 2.6 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, PSSO5, TO-263, SMT-5, Switching Regulator or Controller
IC 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDSO24, SOIC-24, Switching Regulator or Controller

SIMPLE SWITCHER® 40V, 500mA Low Component Count Step-Down Regulator 8-PDIP -40 to 125
Automotive Switching Regulator IC, 40V In, 9.5A, 200kHz, TO-263