Adjustable DC/DC Step-Down Regulator, 40V In, 500mA Out, PDIP
5V 0.5A Step-Down DC/DC Regulator, 40V In, PDIP
LM2597N-3.3/NOPB 40V 500mA Through Hole DC/DC Controller
12V 500mA Positive Fixed Output DC/DC Controller, 40V Input, PDIP
LM2597N-12/NOPB
