Overview

The ISL68201 is a single-phase, synchronous buck PWM controller featuring Renesas’ proprietary R4™ Technology. It supports a wide 4. 5V to 24V input voltage range and a wide 0. 5V to 5. 5V output range. Integrated LDOs provide controller bias voltage, allowing for single supply operation. The ISL68201 includes a PMBus/SMBus/I2C interface for device configuration and telemetry (VIN, VOUT, IOUT, and temperature) and fault reporting. 

The R4 control scheme has extremely fast transient performance, accurately regulated frequency control, and all internal compensation. An efficiency-enhancing PFM mode can be enabled to improve light-load efficiency greatly. The ISL68201’s serial bus allows for easy R4 loop optimization, resulting in fast transient performance over a wide range of applications, including all ceramic output filters. The ISL68201 has four 8-bit configuration pins, which provide very flexible configuration options (frequency, VOUT, R4 gain, etc. ) without the need for built-in NVM memory. This results in a design flow that closely matches traditional analog controllers, while still offering the design flexibility and feature set of a digital PMBus/SMBus/I2C interface. 

The ISL68201 also features remote voltage sensing and completely eliminates any potential difference between remote and local grounds. This improves regulation and protection accuracy. A precision enable input is available to coordinate the start-up of the ISL68201 with other voltage rails, especially useful for power sequencing.

ISL68201 Functional Diagram
ISL68201 Functional Diagram
  • Renesas proprietary R4 Technology
    • Linear control loop for optimal transient response
    • Variable frequency and duty cycle control during load transient for fastest possible response
    • Inherent voltage feed-forward for wide range input
  • Input voltage range: 4.5V to 24V
  • Output voltage range: 0.5V to 5.5V
  • ±0.5% DAC accuracy with remote sense
  • Support all ceramic solutions
  • Integrated LDOs for single input rail solution
  • SMBus/PMBus/I2C compatible, up to 1.25MHz
  • 256 boot-up voltage levels with a configuration pin
  • Eight switching frequency options from 300kHz to 1.5MHz
  • PFM operation option, compatible with ISL99140 for improved light-load efficiency
  • Start-up into precharged load
  • Precision enable input to set higher input UVLO and power sequence as well as fault reset
  • Power-good monitor for soft-start and fault detection
  • Comprehensive fault protection for high system reliability
    • Over-temperature protection
    • Output overcurrent and short-circuit protection
    • Output overvoltage and undervoltage protection
    • Open remote sense protection
  • Compatible with 5V or 3.3V PWM input DrMOS or Smart Power Stage (SPS)
  • Compatible with Intersil's PowerNavigator software

Applications

  • High efficiency and high density POL digital power
  • FPGA, ASIC, and memory supplies
  • Datacenter servers and storage systems
  • Wired infrastructure routers, switches, and optical networking
  • Wireless infrastructure base stations

Documentation

Design & Development

Software & Tools
PowerNavigator Software
Renesas' PowerNavigator™ software allows simple configuration and monitoring of multiple Digital-DC devices using a PC with a USB interface.
Downloads
Production Configuration Utility User GuideProduction Configuration Utility v5.4.139PowerNavigator™ Software v5.4.139PowerNavigator User Guide for POLPowerNavigator User Guide for Digital Multiphase
PMBus Interface Install Guide - Win7 x86 and x64
 Monitor Debugger/RAM Monitor Renesas
iSim:PE Offline Simulation Tool
iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
Downloads
ISL68201 iSim:PE Model
 Simulator Renesas
2 items

Software Downloads
Type Title Date
Software & Tools - Other
Production Configuration Utility v5.4.139
Log in to Download ZIP 120.25 MB
Software & Tools - Software
PowerNavigator™ Software v5.4.139
Log in to Download ZIP 96.49 MB
PCB Design Files
ISL68201-99140DEMO1Z Design Files
ZIP 1.75 MB
3 items
ISL68201-99125DEMO1Z PWM Controller Demo Board Bottom

ISL68201-99125DEMO1Z

Demonstration
Learn More

Single-Phase R4™ Digital Hybrid PWM Controller and 25A DrMOS Module Demonstration Board

The ISL68201-99125DEMO1Z is a 6-layer board used to demonstrate a compact 13mm x 13mm 16A synchronous buck converter. Transient performance, fault protections, DC/AC...

Featured Documents:
ISL68201-99125DEMO1Z User Guide
ISL68201-99135DEMO1Z PWM Controller Demo Board Bottom

ISL68201-99135DEMO1Z

Demonstration
Learn More

Single-Phase R4™ Digital Hybrid PWM Controller and 35A DrMOS Module Demonstration Board

The ISL68201-99135DEMO1Z is a 6-layer board used to demonstrate a compact 13mm x 13mm 20A synchronous buck converter. Transient performance, fault protections, DC/AC...

Featured Documents:
ISL68201-99135DEMO1Z User Guide
ISL68201-99140DEMO1Z Board Bottom

ISL68201-99140DEMO1Z

Demonstration
Learn More

Hybrid Digital Controller with 40A DrMOS Demonstration Board

The ISL68201-99140DEMO1Z is a 6-layer board used to demonstrate a compact 17mm x 17mm 35A synchronous buck converter. Transient performance, fault protections, DC/AC...

Featured Documents:
ISL68201-99140DEMO1Z User Guide

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    PLP
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    ISL68201IRZ
    circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 2033 Dec QFN Tube 3 3.32 Get Samples,
    ISL68201IRZ-T
    circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 2033 Dec QFN Reel 3 Get Samples,
    ISL68201IRZ-T7A
    circleActive
    memory
    spa
    view_in_ar
    Samples Available
    Buy Now
    		2033 Dec QFN Reel 3 2.712 Get Samples,
    ISL68201IRZ-TK
    circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 2033 Dec QFN Reel 3 2.8 Get Samples,
    Parametric Table tips

    Tips for Using This Parametric Table:

    • Hide Filters button in header: Collapse or expands filters
    • Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
    • Reset button in header: Reset all filters to the page default
    • Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
    • Export button in header: Export the filtered results of the table to an Excel document
    • Filter parts search bar in header: Type to filter table results by part number
    • Hide column button in column headers: Select to hide columns in table
    • AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
    • Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
    • Document icon next to product name in row: View the featured document for this product
    • Chip icon next to the right of the document icon in row: View the block diagram for this product
    • Cart icon to the right of the chip icon: Indicates that samples are available for this product