PMBus power modules include hybrids for FPGAs, DSPs and ASICs

Two encapsulated hybrid digital DC/DC PMBus power modules, the 10-amp ISL8280M and 15-amp ISL8282M and two analogue power modules, the ISL8210M and ISL8212M, have been released by Renesas Electronics.

The hybrid digital power modules offer best-in-class power density of 115mA/mm2, in a 12 x 11mm package, says Renesas. Peak efficiency is up to 95 per cent. The single-channel, synchronous step-down regulated power supplies operate over a wide input voltage range of 5.0 to 16V.

The ISL8210M and ISL8212M analogue power modules are also offered in the same pin-to-pin compatible 12 x 11mm package with 10A and 15A of output current, respectively.

The hybrid digital and analogue power modules provide point of load (PoL) conversion for advanced FPGAs, DSPs, ASICs and memory used in servers, storage, optical networking, telecomms, and other space-constrained, industrial applications. Each device integrates a PWM controller, MOSFETs, and inductor inside a new, thermally optimised, grid high density array (GHDA) encapsulated module. To complete the power supply, designers simply add input and output ceramic capacitors.

The ISL828xM hybrid digital and ISL821xM analogue power modules feature integrated LDOs that enable single-supply operation. They also use Renesas’ patented R4 high-speed control loop architecture with inherent line voltage feed-forward. This provides fast load transient response and high noise immunity, says Renesas. The proprietary Grid HDA package is claimed to offer “unmatched” electrical and thermal performance through a single-layer conductive package substrate that efficiently transfers heat from the module to the system board, and dissipates it without requiring airflow or heatsinks, even under heavy load conditions, adds Renesas.

Renesas also offer design support with the PowerCompass and PowerNavigator toosl. PowerCompass tool helps users quickly identify the right power modules and other parts that match their specific requirements. Multiple power rails can be set up for more than 200 FPGAs, and designers can perform high-level system analysis and generate custom reference design files in minutes. PowerNavigator works with PMBus, allowing power architects to set up hybrid digital power module telemetry, sequencing, and run-time configuration, while each module’s pin-strap configuration allows for standalone operation.

The ISL828xM hybrid digital power modules and ISL821xM analog power modules are available now.

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