Buck Switching Regulator IC Positive Adjustable 1.2V 1 Output 5mA 8-SOIC (.154", 3.9mm Width)

8V to 40V, 500mA SIMPLE SWITCHER® buck converter with 5 external components 8-PDIP -40 to 125
IC 2.2 A SWITCHING REGULATOR, 275 kHz SWITCHING FREQ-MAX, PDSO8, 0.150 INCH, PLASTIC, SOIC-8, Switching Regulator or Controller
IC 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PSSO7, TO-263, 7 PIN, Switching Regulator or Controller
Conv DC-DC 8V to 40V Synchronous Step Down Single-Out 1.2V to 37V 3A 7-Pin(7+Tab) TO-220 Tube
1.25A SWITCHING REGULATOR, 275kHz SWITCHING FREQ-MAX, PDIP8, 0.300 INCH, PLASTIC, DIP-8

5A Step-Down DC/DC Controller, 40V In, Adj/Fixed Out, 260kHz, VSON
IC 2.2 A SWITCHING REGULATOR, 275 kHz SWITCHING FREQ-MAX, PDSO16, LLP-16, Switching Regulator or Controller