Renesas Electronics launches Scalable Digital Controllers

Renesas Electronics Corporation has launched two new PMBus compliant, fully digital DC/DC controllers that provide single output point-of-load (POL) conversions for FPGAs, DSPs, ASICs, network processors and general purpose system rails. The ISL68300 with integrated MOSFET drivers and ISL68301 with PWM output simplify designing power
supplies for data centre, wired and wireless communications, and factory automation equipment. The ISL68300 can drive discrete external MOSFETs directly, while the ISL68301 pairs with Renesas’ smart power stages or DrMOS power stages to create a complete voltage regulator solution.

“The scalability of the ISL68300 and ISL68301 single output digital controllers provide industry-leading performance and support a wide range of load currents,” said Mark Downing, Vice President, Core Power Solutions Division, Renesas Electronics Corporation. “The new digital controllers complement our award-winning digital dual-output multiphase controllers, giving customers everything they need to power all the rails in their next-generation systems.”

The ISL68300 and ISL68301 digital controllers feature a high-speed current share bus that parallels up to eight controllers in an 8-phase 240A+ current share configuration. Both controllers implement Renesas’ digital ChargeModeTM control modulation, which responds to load transients in a single switching cycle, and provides an inherently stable control loop
without requiring external compensation. This modulation architecture significantly reduces output capacitor requirements and minimises Vout undershoot and overshoot.

Engineers can use the PowerNavigator GUI with the ISL68300 and ISL68301 to simplify power supply setup, sequencing, configuration and monitoring, including all device parameters and telemetry. Full schematic designs are completed in minutes, and the GUI with PMBus makes it easy to control the entire design and change features without soldering components or rework.

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