TDK-Lambda i9C 1500W DC-DC Buck-Boost Converters with PHEPT

The TDK-Lambda i9C 1500W DC-DC Buck-Boost Converters with Programmable High Efficiency Pass-Through (PHEPT) are non-isolated DC-DC converters designed for high-power battery-powered and industrial systems. The converters support wide input voltage ranges of 9V to 40V or 9V to 80V and provide regulated outputs from 5V to 36V or 9.6V to 60V for multiple DC bus architectures. The integrated PHEPT technology allows users to define an input voltage window where the converter bypasses regulation and directly connects the input to the output, reducing conversion losses and improving efficiency. 

The converters deliver up to 1500W output power in a compact wide quarter-brick package with flanged or non-flanged baseplate options for flexible thermal management. The additional features include adjustable output voltage, programmable overcurrent protection, remote sense, power-good signaling, negative logic remote on/off, user-configurable sleep mode, and automatic recovery protection for industrial power conversion applications. 

Features of i9C 1500W DC-DC Buck-Boost Converters with PHEPT

The i9C series combines buck-boost regulation with programmable pass-through operation. It supports wide input ranges, configurable protection, and high-power DC conversion for industrial and battery-powered systems. Let’s go through its features in detail:

Programmable High Efficiency Pass-Through (PHEPT)

The i9C converters incorporate Programmable High Efficiency Pass-Through (PHEPT) technology that allows users to define an input voltage window where regulation is bypassed and the input is directly connected to the output. This operating mode minimizes switching losses, reduces thermal stress, and improves overall conversion efficiency while extending battery runtime.

Wide Input and Output Voltage Support

The converters support input voltage ranges of 9V to 40V or 9V to 80V and output voltage ranges of 5V to 36V or 9.6V to 60V. These ranges support 12V, 24V, 48V, and 60V bus architectures, allowing a single converter platform to operate across multiple industrial and battery-powered applications.

High-Power Quarter-Brick Design

The i9C delivers up to 1500W output power within a compact wide quarter-brick package. Flanged and non-flanged baseplate options enable different cooling methods for operation in high-ambient and low-airflow environments. The compact mechanical design supports integration into space-constrained industrial power systems. 

Protection and Power Management Features 

Integrated control functions include adjustable overcurrent protection, remote sense, Power Good signaling, and negative logic remote on/off control. A configurable low-power sleep mode reduces standby power consumption, while full automatic recovery protection restores normal operation following fault conditions without manual intervention. 

Industrial Power Conversion Flexibility

The converters are designed for high-current DC power distribution requiring efficient buck-boost regulation. Wide output adjustment capability, programmable operating parameters, and flexible thermal configurations enable deployment in communications equipment, industrial automation, battery-powered platforms, and electronic test systems.

Applications

The TDK-Lambda i9C converters are used in robotics, automated guided vehicles (AGVs), autonomous mobile robots (AMRs), and drones requiring efficient DC power conversion across varying battery voltages. They are also suitable for rugged industrial equipment operating under high ambient temperatures and limited airflow. In test and measurement systems, the converters provide regulated power with programmable protection and monitoring features. Communications equipment benefits from the wide input voltage capability and high-power output for distributed power architectures. The additional applications include battery-powered platforms, industrial automation systems, mobile equipment, energy storage systems, and DC bus conversion requiring efficient buck-boost operation.