The new ICs include the BD9E203FP4-Z, a 2A buck converter with switching frequency of 350kHz.
Increasing application functionality in consumer devices and industrial equipment means that there is a growing need to minimise board space, so the adoption rate of compact DC-DC converter ICs is increasing.
In addition, as reducing standby power consumption is becoming a significant challenge, there is also a need for DC-DC converter ICs to deliver higher efficiency during light load (low power) conditions.
To meet these demands, ROHM has developed products that achieve higher efficiency in an even smaller package than existing SOP-J8 (JEDEC standard: SOIC8 equivalent) products.
The new converter ICs deliver an output current of 1A to 3A in the compact TSOT23 package (2.8mm × 2.9mm) and by reducing component area by up to 72%, compared to the general SOP-J8 package (4.9mm × 6.0mm), they are helping to miniaturise power supply blocks. On top, adopting a flip chip on lead frame TSOT23 package design enables high-efficiency operation by eliminating bond wire resistance.
The BD9E105FP4-Z, BD9E202FP4-Z, and BD9E304FP4-LBZ also utilise a COT control mode during light load operation. As a result, efficiency during light load operation is improved over standard products, making them ideal for applications requiring low standby power consumption.
