Recom R-78CK3.3-0.5, 1-Channel, Non-Isolated DC-DC Converter, Current, Voltage, 500mA 3-Pin, SIP3

The Recom Non-isolated DCDC converter has 0.5 amp switching regulator is a compact and efficient solution with up to 96 percent efficiency and no need for heatsinks, it saves space and energy while operating up to 100°C ambient temperature. Its pin-out is compatible with the LM78xx linear, making it easy to integrate into existing designs.

Positive to negative converter
Low ripple and noise
Short circuit protection