Rambus Upgrades DDR5 PMIC Portfolio For Servers, Enables Support For Higher Bandwidth, Capacities & Channels

Rambus Upgrades DDR5 PMIC Portfolio For Servers, Enables Support For Higher Bandwidth, Capacities & Channels 1

Rambus has upgraded its DDR5 PMIC lineup with three new offerings for servers allowing support for better performance and capacities.

Press Release: Rambus, a premier chip and silicon IP provider making data faster and safer, today announced the availability of its new family of state-of-the-art DDR5 server Power Management ICs (PMICs), including an industry-leading extreme current device for high-performance applications. With this new family of server PMICs, Rambus offers module manufacturers a complete DDR5 RDIMM memory interface chipset supporting a broad range of data center use cases.

I2C and I3C Basic bus serial interface support

Meets or exceeds all JESD300-5 performance specifications up to 1MHz for I2C and 12.5MHz for I3C Basic bus serial interface

Parity error check and packet error check (PEC) function

In-band Interrupt (IBI) support

VIN_Bulk input operational at 4.25V to 15V

VIN_Mgmt input operational at 3V to 3.6V

Four step-down switching regulators (SWA, SWB, SWC, and SWD) and 3 LDO regulators (VBias, VOUT_1.8V, VOUT_1.0V)

Write protect and programmable modes of operation

I2C bus operational at 1.0V to 3.3V nominal I/O levels

I3C Basic bus operational at 1.0V, 1.1V, and 1.2V nominal I/O levels

Dynamic driver switching capability for I3C Basic bus operation between push-pull and open-drain

Operation from -100C to +1250C

35-pin thermally enhanced FCQFN package

The PMIC is a critical component in the DDR5 memory architecture, enabling more memory channels, higher capacity modules, and greater bandwidth. The Rambus DDR5 server PMIC family includes products for the JEDEC extreme current (PMIC5020), high current (PMIC5000), and low current (PMIC5010) specifications.

With PMICs on the DDR5 DIMMs, power management is added on an incremental basis that scales with the number of memory modules needed by the system configuration. Another advantage of this power architecture is that it greatly reduces the problem of IR drop on the delivery network by delivering the high voltage 12V supply to the module, as opposed to trying to deliver 1V from the motherboard, through the module connector and onto the memory module. This provides tighter voltage tolerances for the sensitive components on the DIMM, which helps achieve the higher DDR5 performance level targets.

Rambus

The industry-leading Rambus PMIC5020 will enable future generations of DDR5 RDIMMs delivering new benchmarks for performance and capacity. This new family of Rambus server PMICs, together with Rambus DDR5 RCD, SPD Hub, and Temperature Sensor ICs, comprise a complete memory interface chipset for a broad range of DDR5 RDIMM configurations and use cases. With over 30 years of high-performance memory experience, Rambus offers RDIMM manufacturers a one-stop shop for DDR5 memory interface chips, providing the highest level of validation assurance and speeding time to market.

Availability and More Information

The Rambus DDR5 PMIC5020, PMIC5000, and PMIC5010 are available now. Learn more about the Rambus DDR5 memory interface chips at https://www.rambus.com/ddr5.