MAXREFDES114#: Isolated 24V to 5V 10W power supply

Maxim's power supply experts designed and built a series of isolated industrial power supply reference designs, each of which efficiently converts 24V to voltage rails at various power levels. Each power rail is isolated using transformers available from multiple manufacturers worldwide, making transformer selection quick and easy. Each design is tested for load and line regulation, as well as efficiency and transient performance. As with all Maxim reference designs, the Design Resources tab provides BOMs, schematics, layout files, and Gerber files. In addition, circuit boards are available for purchase; most have through-hole pins, allowing for immediate board layout and accelerating initial product development.

MAXREFDES114# is a high-efficiency active clamp structure that uses 24V input and outputs 5v @ 10W power output (2A). The design features the MAX17599 active-clamp, current-mode PWM controller optimized for industrial power supplies. The entire circuit is mounted on a 20mm × 40mm circuit board.

characteristic

• functional isolation
• Compact and flexible
• Low power consumption
• Minimal number of external components
• Works reliably in harsh industrial environments

application

• PLCs
• Industrial process controls and sensors
• Telecommunications and datacom power supplies