Renesas Electronics Corporation introduces a new family of encapsulated digital DC/DC PMBus™ power modules. The five RAA210xxx single digital power modules offer telemetry and advanced digital performance.These are buck-regulated power supplies that deliver 25A, 33A, dual 25A, 50A, and 70A of output current, while operating from industry-standard 12V or 5V input power lines. The RAA210xxx family provides point-of-load (POL) conversion for advanced FPGAs, DSPs, ASICs, and memory used in servers, storage, optical networks, and telecommunications equipment. Each device integrates a PWM controller, MOSFETs, inductors, and passive components within a thermally optimized, high-density package (HDA) module. Input and output capacitors are all that is needed to complete the power supply.
The RAA210xxx is a family of simplified, lower-cost, pin-to-pin digital power modules compatible with Renesas' full-featured ISL827xM digital power modules. The RAA210xxx simple digital power modules offer runtime digital programmability to support configuration changes with a subset of PMBus commands, and full telemetry and system monitoring. Should more advanced digital control be required later, upgrading to the pin-compatible ISL827xM modules will allow current sharing with multiple modules connected in parallel, access to all PMBus commands using the PowerNavigator™ tool, and non-volatile memory for configuration storage.
The RAA210xxx family's patented HDA package delivers high thermal and electrical performance at full load through a single-layer conductive substrate that efficiently transfers heat from the module to the system board and dissipates it without the need for airflow or heatsinks. Boards with limited space take full advantage of HDA's high power density, which is not possible with discrete components. The simple RAA210xxx digital power modules leverage Renesas' patented ChargeMode™ control architecture, offering up to 96 percent peak efficiency and efficiency exceeding 90 percent under most conditions. They also provide fast, single-clock-cycle transient response to output current load steps, reducing capacitance and saving cost and board space.
Key Features of the RAA210xxx Simple Digital Power Modules:
Output current from 25A to 70A;
Wide input voltage range: 4.5V to 14V;
Programmable output voltage range: 0.6V to 5V;
±1.2% output voltage accuracy over line, load, and temperature;
ChargeMode control loop architecture;
Selectable switching frequency options from 296kHz to 1.06MHz;
Non-offset design keeps modules stable regardless of changes in the output capacitor due to temperature, variation, or aging;
Full input and output undervoltage (UV), overvoltage (OV), temperature, and output current protection with fault logging
Power supply designers can combine RAA210xxx simple digital power modules with ISL8203M 3A, ISL8205M 5A and ISL8215M 15A analog power modules, and Renesas low dropout regulators (LDOs) to support auxiliary power lines in embedded applications.
Power Supply Design Tools:
The PowerCompass™ tool helps users quickly identify the correct power modules and other components that meet their specific requirements. Multiple power lines can be configured for more than 200 FPGAs, and designers can perform high-level system analysis and generate custom reference design files in minutes. The PowerNavigator™ tool allows designers to configure sequencing, telemetry, and real-time configuration of the simple digital power module.
