Adaptive digital control improves stability in non-isolated 100A Point Of Load converter 

February 07, 2017 // By Nick Flaherty
TDK has launched a series of 100A Point of Load (POL) non-isolated DC-DC converters with adaptive digital control through PMBus communication for improved transient response and system stability across a wide range of output capacitance.

The iJC PoL converters accept an 8 to 14Vdc input and the output voltage of the iJC can be adjusted from 0.6 to 1.5V with currents of up to 100A and a maximum output power of 150W.  With the current share function, converters can be paralleled to produce 180A, using either a PMBus command or an external resistor.  Weighing just 20g and measuring 28.0 x 35.0 x 10.0mm, the converters are aimed at applications such as communications, broadcast, industrial and test and measurement equipment.

The read and write functionality of the PMBus allows precision, real-time monitoring of the output voltage, current and temperature.  The iJC’s operating parameters can also be easily programmed using the TDK-Lambda graphical interface.  The converters can be used without the PMBus function through the use of function pins.

The iJC series will reliably operate across a wide -40 to +120oC temperature range with minimal airflow, providing a true “useable” power.  High efficiency levels are maintained across light to full loads and are as high as 91.5% for a 1.5V output.

Safety certification includes IEC/EN 60950-1, UL/CSA 60950-1 with CE marking for the Low Voltage and RoHS2 Directives.

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