TDK Corporation announces the introduction of the 35 A TDK-Lambda iJA series of point-of-load non-isolated dc-dc converters. Being PMBus compliant and featuring digital control, these converters provide better dynamic performance, improved system stability and allow a great deal of flexibility and customization to the end application’s needs. These POLs feature digital control for highly accurate voltage setting (±1%) and auto-tuning technology for better dynamic performance and system stability.

Operating from an 8 V_DC to 14 V_DC input, the iJA series can provide output voltages from 0.6 V to 3.3 V with a precision set-point accuracy of 1%. The series is designed to meet a wide range of applications, including servers, routers, and other information and communication technology (ICT) equipment, semiconductor-manufacturing equipment, measuring equipment, and general industrial equipment. The surface-mount converters occupy only 0.45 square inches of board space, representing an ultra-high power density of 580 W per cubic inch. Overall dimensions are 22.9 mm x 12.7 mm x 9.7 mm with a weight of just 6.5 g. Optimization of components using digital control enables a high current output in high-temperature, low-airflow environments. The iJA power module has a typical efficiency of 94% with a 3.3 V output, 12 V input, and 80% loading. The PMBus read-write functionality of the converter provides real-time precision monitoring of voltage, current, and temperature, and allows full programmability of the iJA parameters. Function setting pins make them easy to use in applications where PMBus communication is not implemented. A graphical user interface and evaluation boards are available for development support.