The ISL68200 is a single-phase synchronous-buck PWM controller featuring Intersil’s 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 ISL68200 includes a PMBus/SMBus/I2C interface for device configuration and telemetry (VIN, VOUT, IOUT, and temperature) and fault reporting. Intersil’s proprietary 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 greatly improve light-load efficiency. The ISL68200’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. Built-in MOSFET drivers minimize external components, significantly reducing design complexity and board space, while also lowering BOM cost. The 4A drive strength allows for faster switching time, improving regulator efficiency. An integrated high-side gate-to-source resistor helps avoid Miller coupling shoot-through and improve system reliability. The ISL68200 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 ISL68200 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 ISL68200 with other voltage rails, especially useful for power sequencing.


  • Intersil's 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 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
  • Integrated high-side gate-to-source resistor to prevent self turn-on due to high input bus dv/dt
  • Integrated power MOSFETs 4A drivers with adaptive shoot-through protection and bootstrap function
  • Compatible with Intersil's PowerNavigator software


Title language Type Format File Size Date
Datasheets & Errata
star ISL68200 Datasheet Datasheet PDF 1.36 MB
User Guides & Manuals
ISLUSBEVAL1Z User's Manual Rev.1.00 Manual - Development Tools PDF 257 KB
PowerNavigator User Guide for Digital Multiphase Manual - Development Tools PDF 5.52 MB
PowerNavigator User Guide for POL Guide PDF 4.68 MB
ISL68200DEMO1Z User Guide Manual - Development Tools PDF 1.59 MB
Production Configuration Utility User Guide Guide PDF 714 KB
PMBus Interface Install Guide - Win7 x86 and x64 Manual - Hardware PDF 693 KB
ZLUSBEVAL3Z User Guide Guide PDF 393 KB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
Scalable Digital Point-of-Load Solutions White Paper PDF 483 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
PCN20029A - Alternate bond wire material and assembly facility of the listed Renesas QFN packaged products Product Change Notice PDF 327 KB
ISL68200 iSim:PE Model Schematic SXSCH 211 KB
Digital-DC Frequently Asked Questions (FAQ) Other PDF 194 KB


Title language Type Format File Size Date
PowerNavigator™ Software v5.4.139 Software & Tools - Software ZIP 96.49 MB
Production Configuration Utility v5.4.139 Software & Tools - Other ZIP 120.25 MB
PMBus Conversion Software Tool Library ZIP 54.93 MB
ZLHLD Software v2.9 Library ZIP 119.19 MB
CompZL Software v1.5.1 Library ZIP 59.25 MB
PowerPilot Software GUI Library ZIP 435 KB
USB Drivers for the ZLUSBEVAL1Z (Windows 7) Library ZIP 1.75 MB
USB Drivers for the ZLUSBEVAL1Z (Windows XP/Vista) Library ZIP 166 KB
ISL68200DEMO1Z Design Files PCB Design Files ZIP 1.71 MB

select_allSoftware & Tool Pages

Title Type Description Company
iSim:PE Offline Simulation Tool Simulator 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. Renesas
PowerNavigator Software Software Package Renesas' PowerNavigator™ software allows simple configuration and monitoring of multiple Digital-DC devices using a PC with a USB interface. Renesas

memoryBoards & Kits

Part Number Title Type Company
ISL68200DEMO1Z Hybrid Digital Controller Demonstration Board Demonstration Renesas