Renesas ISL68201-99260DEMO1Z

Overview

ISL68201-99260DEMO1Z from Renesas Electronics is a single-phase digital hybrid PWM controller evaluation platform designed to demonstrate the ISL68201 R4 controller with integrated PMBus/SMBus/I2C telemetry, PFM mode, and remote sensing. It supports 4.5V–24V input, 0.5V–5.5V output, ±0.5% DAC accuracy, and operates with compatible Renesas power stages including ISL99140. Targeted for FPGA/ASIC point-of-load (POL) applications.

For engineers reviewing the ISL68201-99260DEMO1Z datasheet, ISL68201-99260DEMO1Z application, ISL68201-99260DEMO1Z setup, or ISL68201-99260DEMO1Z compatibility with ISL99140, this demo board enables rapid validation of R4 transient response, SMBus configuration via PowerNavigator, light-load PFM efficiency, precharged start-up, and precision enable sequencing in high-density POL systems.

Technical Context

The ISL68201-99260DEMO1Z implements the ISL68201's proprietary R4 control architecture-featuring linear loop dynamics, variable-frequency/duty-cycle load transient response, and inherent voltage feed-forward-on a fully assembled, tested PCB with on-board transient injection capability. It integrates all necessary biasing (5V/7V LDOs), current sensing (CSRTN/CSEN), thermal monitoring (NTC), and remote sense (VSEN/RGND) circuitry per the ISL68201 datasheet.

This demo board is configured for 35A operation using the ISL99140 DrMOS, supports eight selectable switching frequencies (300kHz–1.5MHz), enables ultrasonic PFM via PROG3, and provides full PMBus access to real-time VIN, VOUT, IOUT, and temperature telemetry with fault logging. Boot-up voltage is set via four configuration pins (PROG1–PROG4) without NVM.

Key Specifications

Availability

ISL68201-99260DEMO1Z is available at Aetrix Electronics and suitable for FPGA/ASIC power delivery, data center server POL design, and wireless infrastructure base station development requiring stable component supply, fast evaluation turnaround, and production-relevant reference implementation.

Supply support for ISL68201-99260DEMO1Z includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with deep expertise in power management and digital control architectures.

The ISL68201-99260DEMO1Z belongs to Renesas' R4 Digital Hybrid PWM Controller product line, engineered specifically for high-efficiency, high-transient-response point-of-load regulation in FPGA, ASIC, and memory subsystems where analog-like loop behavior and digital configurability are both required.

FAQ

What is the primary function of the ISL68201-99260DEMO1Z?

The ISL68201-99260DEMO1Z is an evaluation platform for the ISL68201 digital hybrid PWM controller. It demonstrates full functionality-including R4 transient response, PMBus configuration, PFM mode, remote sensing, and precharged start-up-using the ISL99140 DrMOS. Engineers use it to validate system-level performance before custom design integration.

Which power stage is used on the ISL68201-99260DEMO1Z board?

The ISL68201-99260DEMO1Z uses the ISL99140 DrMOS as its integrated power stage, rated for 35A continuous output. This pairing is explicitly listed in Table 1 of the ISL68201 datasheet (FN8696 Rev.5.01) as a compatible device and enables direct evaluation of the ISL68201's PWM output drive capability and FCCM signal timing.

Does the ISL68201-99260DEMO1Z support PMBus-based configuration and telemetry?

Yes, the ISL68201-99260DEMO1Z fully supports PMBus v1.3, SMBus 3.0, and I²C protocols up to 1.25MHz. It provides real-time telemetry for VIN, VOUT, IOUT, and die temperature, plus comprehensive fault reporting (OVP, UVP, OCP, OTP). All functions are accessible via Renesas PowerNavigator software.

Can the ISL68201-99260DEMO1Z be used for light-load efficiency evaluation?

Yes, the ISL68201-99260DEMO1Z supports PFM (Pulse Frequency Modulation) mode, which is configurable via the PROG2 pin and enabled in firmware. When active, it improves light-load efficiency by reducing switching frequency and enabling diode emulation via the FCCM signal-validated with the ISL99140 per datasheet Section "PFM Mode Operation".

How is output voltage programmed on the ISL68201-99260DEMO1Z?

Output voltage is programmed via four hardware configuration pins (PROG1–PROG4) on the ISL68201-99260DEMO1Z, allowing 256 boot-up voltage options from 0V to 5.5V without NVM. PROG1 sets the initial VBOOT level; PROG3 selects switching frequency (300kHz–1.5MHz); and PROG4 configures soft-start slew rate and R4 gain-per Tables 2–6 in FN8696 Rev.5.01.