System Board 5858

MAXREFDES115#: ISOLATED 24V TO 5V 20W POWER

SUPPLY

The MAXREFDES115# reference design (Figure 1) demonstrates the application of the

MAX17599 low IQ, wide-input range, active-clamp current-mode PWM controller. The

MAX17599 contains all the control circuitry required for the design of wide-input isolated

forward-converter industrial power supplies. The reference design features the active-

Introduction

Though isolated power supplies provide reliable power regulation for a variety of

applications, transformer selection is often the most difficult step in isolated power design.

The MAXREFDES115# is a compact, isolated 24V input flyback converter module that

features 5V at 4A (20W) output. Multiple transformers have been qualified for this design,

simplifying the process of transformer selection. In addition, through-hole pins on the

bottom side of the module allow quick and easy integration of this power converter into any

system. Pins are 15.24mm from power to ground, and 63.5mm from the input side to the

output side.

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MAXREFDES115# System Board