SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator 14-SOIC -40 to 125
Adj Step-Down DC/DC Regulator, 60V In, 500mA Out, SOIC W
Adjustable 4.5V to 57V 500mA DC/DC Controller, SOIC, -40°C to 125°C
3.2A SWITCHING REGULATOR, 63kHz SWITCHING FREQ-MAX, PDSO24, SOIC-24
LM2574HVM-ADJ/NOPB 57V 500mA SOIC Linear Regulator
LM2594HVMX-ADJ/NOPB