New Industry Products

TDK Introduces the 750W-Rated TDK-Lambda i7A Series of Non-Isolated Buck DC-DC Converters

April 18, 2021 by Hailey Stewart

This article highlights TDK-Lambda i7A series of non-isolated buck DC-DC converters, packaged in the industry-standard 1/16th brick footprint.

TDK Corporation announces the introduction of the 750W rated TDK-Lambda i7A series of non-isolated buck DC-DC converters, packaged in the industry-standard 1/16th brick footprint. The output voltage of these 24V nominal input step-down converters can be adjusted from 3.3V to 18V with a maximum current of 45A.

 

Image courtesy of TDK Lambda
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The i7A models can be used to derive additional high-power outputs from a 24Vdc power supply, at a lower cost and higher efficiency than isolated DC-DC converters. These very compact products are suited for use in robotics, drones, medical, industrial, test, measurement and portable battery-powered equipment.

Efficiencies of up to 98.5% dramatically minimise internal losses and allow the i7A to operate in ambient temperatures of -40°C to +125°C, even with low airflow conditions. The i7A’s design provides a low output ripple and excellent response to dynamic loads. Minimal external components are required, compared to discrete solutions, saving cost and printed circuit board space.

A choice of three mechanical configurations is available, measuring just 34mm wide and 36.8mm in length. The 11.5mm high open-frame model is suitable for applications requiring a low profile. The baseplate version can be conduction-cooled to a cold plate and is 12.7mm high. Models with an integral heatsink, which are for convection or forced air cooling, are 24.9mm high.

The i7A standard features include output voltage adjustment, + remote sense, remote on-off (positive or negative logic available), input under-voltage, over-current and over-temperature protection. Evaluation boards are available.

All models have safety certification to the IEC/UL/CSA/EN 62368-1 standards, with CE marking to the Low Voltage and RoHS Directives.

 

About TDK Lambda

TDK-Lambda Corporation, a group company of TDK Corporation, is a leading global power supply company providing highly reliable power supplies for industrial equipment worldwide. TDK-Lambda Corporation meets the various needs of customers with our entire range of activities, from research and development through to manufacturing, sales, and service with bases in five key areas, covering Japan, Europe, America, China, and Asia.