PoL DC/DC converters are current-rated for FPGAs

Adding to the OKD series of digital PoL DC/DC converters, Murata Power Solutions has announced the 90A/162W OKDx-T/90 series. It is, claims the company, the highest current-rated product in the OKD series and is suited to FPGA and processor applications.

It is specified to operate over a Vin range of 7.5 to 14V and provides a user-adjustable Vout over 0.6 to 1.8V DC with 94 per cent efficiency.

Three package configurations are available. The SIP measures 50.8 x 9.51 x19.05mm (2.0 x 0.37 x 0.75inch), the horizontal mounting TH (through-hole), and surface mount (SMT) versions measuring 50.8 x 19.05 x 10mm (2.0 x 0.75 x 0.39inch).

Critical performance parameters are accessible through the PMBus via the Murata Power Designer GUI software. The OKDx-T/90-W12 series converters are delivered with a default firmware configuration for input voltage, output voltage, and loading conditions.

Proprietary digital control power management functions include non-linear transient response to improve the dynamic response time, reducing Vout deviation due to large load changes. There is also phase spreading to reduce input capacitor requirements and efficiency losses. Synchronisation eliminates beat frequency reflection, resulting in less EMI filtering, says the company, while digital current sharing ensures near 100 per cent current sharing accuracy with up to four modules operating in parallel. The converters provide dynamic loop compensation, where the feedback loop parameters are automatically calculated and configured depending on the application-specific operating conditions. Additional standard features include output short circuit, over-current, over-voltage, over-temperature, and input under-voltage protection.

The converters are suitable for any application requiring high current processor power, particularly in areas such as networking, computing/servers, telecomms, powering FPGAs, CPUs, programmable logic, mixed voltage systems, advanced computing, and all distributed power applications.


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