TDK-Lambda i7A Series High-Efficiency 3.3V DC/DC Converter, 33A Output, 18V Input, PCB Mount, Operating I7A4W033A033V-000-R

TDK-Lambda I7A4W033A033V-000-R is a non-isolated DC/DC step-down converter from the i7A series, designed to provide high current outputs of 33A with a fixed output of 3.3V dc. It operates on an 18V input voltage and is intended for PCB mounting applications. This module meets demanding industrial standards such as IEC/EN/UL/CSA 62368-1 and carries the CE mark, ensuring compliance and quality assurance.

The converter exhibits a remarkably high efficiency of 98%, reducing power loss and improving thermal management. It maintains low ripple and noise output at 25mV, essential for sensitive electronic circuits. The i7A series boasts a wide operating temperature range from -55°C to 125°C, suitable for extreme conditions in industrial, commercial, and laboratory environments.

Compact in size, with a length of 34mm and width of 36.8mm, this device fits efficiently into circuit boards with minimal footprint. The device is engineered for high reliability with a Mean Time Between Failures (MTBF) of 5,000,000 hours, making it suitable for continuous operation in critical systems.

This DC/DC converter provides a robust solution for creating additional high current or power rails from single output power supplies. Its low component count and minimal external components simplify system design and reduce total system cost. Applications include power electronics, embedded systems, instrumentation, and telecommunications equipment requiring regulated low-voltage, high-current power sources.

The converter provides a stable 3.3V dc output at 33 amperes. It accepts a fixed 18V input voltage for reliable operation. Designed for PCB mounting to facilitate straightforward integration into electronic systems. Features an outstanding efficiency of 98%, minimizing energy loss.

Operating temperature ranges from -55°C minimum to 125°C maximum, supporting harsh environments. Includes built-in standards compliance with IEC/EN/UL/CSA 62368-1 and CE marking. Compact size with dimensions of 34mm length and 36.8mm width.

Ensures low output ripple and noise at 25mV for signal integrity. Mean Time Between Failures (MTBF) of 5 million hours ensures high reliability. Suitable for industrial, laboratory, power electronics, and embedded system applications requiring high current DC/DC conversion.

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