Part Number	Replacement	Explanation

Description

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The MAX17498B evaluation kit (EV kit) is a fully assembled and tested circuit board that contains an isolated 7W flyback DC-DC converter. The circuit uses the MAX17498B current-mode, fixed-frequency flyback converter in a 16-pin TQFN package with an exposed pad. The EV kit demonstrates the IC's cycle-by-cycle current limit, soft-start, and UVLO features.

The EV kit circuit output is configured for an isolated +5V and provides up to 1.5A of current. Low cost and high efficiency up to 88% are achieved using a flyback DC-DC converter topology operating at a fixed 500kHz switching frequency. The surface-mount transformer provides up to +1500V galvanic isolation at the output.

The EV kit operates from a +18V to +36V power supply capable of providing up to 1A.

Key Features

• +18V to +36V DC Voltage Input Range
• Isolated 5V, 1.5A Output
• Fixed 500kHz Switching Frequency
• 88% Efficiency
• Cycle-by-Cycle Current Limit
• High-Accuracy UVLO
• PGOOD Open-Drain Output
• Low-Cost Flyback Design
• Configurable for Primary-Side Regulation
• Proven PCB Layout
• Fully Assembled and Tested

Applications/Uses

• Front-End AC/DC Power Supplies for Industrial Applications (Isolated and Nonisolated)
• Telecom Power Supplies
• Wide Range DC Input Flyback/Boost Industrial Power Supplies