Murata delivers high-power-density DC/DC converter module

Murata has introduced the UltraCP MYC0409, a 48 Vin divide-by-4 pump capacitor divider module with all passive components integrated in a low-profile PSiP package. The company claims the new DC/DC converter module offers the highest power density (5.4 kW/inch³), delivering 72 watts with peak efficiency of 96.5 percent.

The module’s interleaved, switching capacitor architecture is based on Murata’s lossless charge pump technology that is said to provide extremely low input and output ripple performance.

MYC0409 DC/DC converter module. Click for a larger image. (Source: Murata)

The MYC0409 operates in a fixed divide-by-4 mode over an input voltage range of 20 V to 60 V, which extends its use to 24-V to 36-V input applications typically used in consumer battery charging and industrial supplies. The charge pump-based DC/DC converter supports an output voltage range of 5 V to 15 V with load currents of 6 A and up to 72 W delivered to the external load. The devices offer an extended temperature range of -40°C to 105℃. Protection functionality includes input undervoltage, overcurrent protection, and thermal shutdown fault detection.

The MYC0409 devices can be connected in parallel to provide high power and high efficiency solutions suitable for 48-V to 12-V step-down conversion applications such as data centers, networking routers, base stations, and optical equipment.

Traditionally, companies have used brick converters to step-down from 48 V to the intermediate bus, usually 12 V, said Murata. In comparison, the MYC0409 enables system architects to design high density, 48-V converters in a smaller footprint with enhanced efficiency and low ripple performance.

This means system designers can choose between creating a single high-power bulk 48-V bus system with MYC0409 devices connected in parallel or distributing individual MYC0409 devices close to the point-of-load, which reduces system PCB copper losses, said Murata.

The MYC0409, measuring 11.5 × 9.5 × 2.0 mm, is supplied in a LGA package. An evaluation kit is available. Murata exhibited at APEC 2022 in Booth #1624.