Single-Phase R4 Digital Hybrid PWM Controller with PMBus/SMBus/I²C and PFM
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Overview
Description
The ISL68201 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 ISL68201 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 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.
Features
- 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
Documentation
| Title | Type | Date | |
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Datasheet
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PDF509 KB
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Application Note
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PDF397 KB
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Application Note
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PDF4.68 MB
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Guide
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PDF714 KB
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Guide
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PDF393 KB
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Guide
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PDF257 KB
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Manual - Development Tools
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PDF5.52 MB
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Manual - Development Tools
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PDF1.95 MB
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Manual - Development Tools
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PDF1.41 MB
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Manual - Development Tools
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PDF1.69 MB
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Manual - Development Tools
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PDF693 KB
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Manual - Hardware
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PDF194 KB
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Other
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PDF208 KB
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Price Increase Notice
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PDF326 KB
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Product Change Notice
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PDF483 KB
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White Paper
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Design & Development
Software & Tools
Software & Tools
| PowerNavigator SoftwareRenesas' PowerNavigator™ software allows simple configuration and monitoring of multiple Digital-DC devices using a PC with a USB interface.Downloads: | Monitor Debugger/RAM Monitor | Renesas |
| iSim:PE Offline Simulation TooliSim 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: | Simulator | Renesas |
Boards & Kits
Boards & Kits
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:
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:
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:
Models
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.
Product Options
Processing table
| QFN | Tube | 750 | Get Samples, | |
ISL68201IRZ-T Active Samples Available |
QFN | Reel | 6000 | Get Samples, |
ISL68201IRZ-T7A Active Samples Available |
QFN | Reel | 250 | Get Samples, |
ISL68201IRZ-TK Active Samples Available |
QFN | Reel | 1000 | Get Samples, |
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