Renesas Electronics streamlines power supply design for cloud computing, communications and industrial applications

Today, Renesas Electronics Corporation announces two PMBusTM-compliant all-digital DC/DC controllers that provide single output point-of-load (POL) conversion for FPGAs, DSPs, ASICs, network processors and general-purpose systems Powering. The ISL68300 controller with integrated MOSFET driver and the ISL68301 controller with built-in PWM output simplify power supply design for data center, wired/wireless communication, and factory automation equipment. The ISL68300 can directly drive an external MOSFET, while the ISL68301 can communicate with Renesas Electronics. The smart power stage or DrMOS power stage is used together to create a complete voltage regulator solution.

The ISL68300 and ISL68301 digital controllers feature a high-speed current-sharing bus that can be connected in parallel with eight controllers in a current-sharing configuration of 8-phase 240A+. Both controllers use Renesas Electronics' digital ChargeModeTM control modulation. Respond to load transients in a single switching cycle and provide an inherent, stable control loop without external compensation. This modulation architecture significantly reduces output capacitor requirements and minimizes output voltage undershoot and overshoot .

Mark Downing, vice president of Renesas Electronics' core power solutions division, said: 'The ISL68300 and ISL68301 single-output digital controllers are scalable, delivering industry-leading performance and supporting a wide range of load currents. New digital controllers with us The award-winning digital dual-output multiphase controller provides the comprehensive solution needed to power customers' next-generation systems.'

The PowerNavigatorTM GUI works with the ISL68300 and ISL68301 to help engineers simplify power installation, sequencing, configuration and monitoring, including all device parameters and telemetry. Complete schematic design in just a few minutes, with a GUI with PMBus It allows engineers to easily control the entire design and change functions without the need to weld components or rework.

Key features of the ISL68300 and ISL68301 digital controllers

 Parallel to up to eight controllers in a single no-drop-averaged output  Output voltage range: 0.45V to 5.5V  Input voltage range: 4.75V to 16V or 4.5V to 5.5V  Line, load and temperature range Output voltage accuracy of 0.5%  Switching frequency range from 200kHz to 1.0MHz  Unique single-line Digital-DCTM (DDC) serial bus for use with other Renesas electronic digital power ICs for voltage sequencing and fault transmission  Cycle by cycle Inductor Peak Current Protection  Output Voltage Undervoltage (UV), Overvoltage (OV), Input Voltage UV/OV and Temperature Configurable Fault Protection  Non-volatile memory to record operating parameters and record telemetry fault events

In a typical FPGA power system, the ISL68300 and ISL68301 digital controllers provide 10A to 40A+ single outputs for auxiliary power rails, DDR memory and system power rails. The Renesas electronic digital multiphase controller is supplied with 15A to 70A through intelligent power stages. Biphase output or higher nuclear power.

Pricing and Availability The driver-integrated ISL68300 is optimized for use with external MOSFETs in a 4mm x 4mm, 24-pin QFN package and is priced at $2.60/piece in quantities of 1,000. Single-phase and dual-phase evaluation The plates are priced at $125 each.

The ISL68301 with built-in PWM output can be used with the ISL99227B Smart Power Stage or DrMOS Power Stage in a 4mm x 4mm, 24-pin QFN package, $2.66/piece, in 1,000-unit quantities. Single- and dual-phase evaluation boards are priced at $125 each. .