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Analog Devices MAX17690 | Demoboard MAXREFDES120#
MAXREFDES120#: ISOLATED 24V TO 5V–12.5W NO-OPTO FLYBACK POWER SUPPLY
Overview
| Topology | Flyback Converter |
| Input voltage | 18-36 V |
| Output 1 | 3 V / 5 A |
Description
MAXREFDES120# is an efficient no-opto flyback topology with 24V input, and a 5V output at 12.5W of power (2.5A). The design features the MAX17690 (a peak-current-mode converter with flexible switching frequency) and the MAX17606 (a secondary side MOSFET driver for flyback converter). The combination of no opto-coupler and a secondary side MOSFET result in a design that is optimized for space, cost, and efficiency. This entire circuit fits on a 20.3mm (0.8in) x 59.7mm (2.35in) board.
Features
● 18V to 36V Input Range● Isolated Output: 5V/1A DC● Compact Design with High Frequency (150kHz) Switching● No Optocoupler/Third Winding Required to Derive Feedback Signal● 90% Peak Efficiency● Galvanic Isolation up to 1875VRMS● Proven PCB Layout● Fully Assembled and Tested● Minimum Load for ±5% Regulation: 1% of Full-Load
Typical applications
- DC-DC converter
