MAXREFDES111 Datasheet, PDF (1/17 Pages) Maxim Integrated Products – OLATED 24V TO 5V 2W FLYBACK POWER SUPPLY

System Board 6276
MAXREFDES111#: ISOLATED 24V TO 5V 2W FLYBACK
POWER SUPPLY
Overview
Maxim’s power supply experts have designed and built a series of isolated, industrial
power-supply reference designs. Each of these power supplies efficiently converts 24V
into useful voltage rails at a variety of power levels. Every power rail is isolated with a
readily available transformer from multiple, global vendors, providing for quick, convenient
transformer selection. Each design has been tested for load and line regulation, as well as
efficiency and transient performance. As with all Maxim reference designs, the BOM,
schematics, layout files, and Gerber files are all available. In addition, boards are available
for purchase; most boards feature through-hole pins for immediate board placement and
accelerated prototyping.
MAXREFDES111# has an efficient flyback topology with 24V input, and a 5V output at 2W
of power (0.4A). The design features the MAX17498B, a peak-current-mode converter with
internal n-channel MOSFET switch. This entire circuit fits on a 36mm x 20mm (1.4in x
0.8in) board.
Features
• Functional Insulation
• Compact and Flexible
• Minimal External Components
• Robust Operation in Adverse Industrial Environments
• 5V 400mA with 20% Overrange Current
• ±5% Output Accuracy