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Reference Design Board, Non-isolated 5V/2.5A PoE Powered Device Power Supply


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Technical Datasheet:
MAXREFDES98#   Datasheet
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Product Overview

The MAXREFDES98# is a 5V/2.5A non-isolated POE powered device power supply. MAXREFDES98# is a unique PoE module reference design, providing 5V at 2.5A (12.5W) from a 36V to 57V input. This design can be used for evaluation, design, prototyping and production. The circuit consists of two function blocks such as the PD controller and the step-down DC-DC converter. The PD controller section employs the MAX5969A and DC to DC power supply uses the MAX17505 4.5V to 60V input, 1.7A output, high-efficiency, synchronous, step-down DC-DC converter with internal compensation. The entire design delivers a peak efficiency of 86% with an input of 48V. Typical applications include lighting, IP cameras, sensors and non-isolated Ethernet equipment.
  • Compact and flexible
  • Minimal external components
  • Robust operation in adverse environments
  • 12.5W output capacity and ±3% output accuracy


Embedded Design & Development, Power Management, Communications & Networking

Product Information

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Analog Devices

MAX5969A, MAX17503

Power Management

Power Over Ethernet (POE), PSE Controller




Ref Design Board


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Technical Documents (1)

CAD Downloads


Terms and Conditions

CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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Available to manufacturer lead time 9 weeks

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