Overview
Description
The ISL68127 is a digital dual output, flexible multiphase (X+Y ≤ 7) PWM controller supporting the latest PMBus V1. 3 specifications. The ISL68127can be configured to support any desired phase assignments up to a maximum of seven phases across the two outputs (X+Y). For example, 6+1, 5+2, 4+2, 3+3, 3+2, or even a single output operation as a 7+0 configuration are supported. The ISL68127 uses the Renesas proprietary linear synthetic digital current modulation scheme to achieve the industry's best combination of transient response and ease of tuning while addressing the challenges of modern multiphase designs. You can configure the device and monitor telemetry using the intuitive Renesas PowerNavigator GUI. The ISL68127 device supports on-chip nonvolatile memory to store various configuration settings that are user-selectable through pin-strap, giving system designers increased power density to configure and deploy multiple configurations. The automatic phase add/drop feature allows maximum efficiency across all load ranges. Thresholds for automatic phase add/drop are user-programmable using PowerNavigator. The ISL68127 supports a comprehensive fault management system to enable the design of highly reliable systems. From a multitiered overcurrent protection scheme to the configurable power-good and output overvoltage/undervoltage fault thresholds and temperature monitoring, almost any need is accommodated. With minimal external components, easy configuration, robust fault management, and highly accurate regulation capability, implementing a high-performance, multiphase regulator has never been easier.
Features
- Zero latency synthetic current control for excellent HF current balance
- Dual edge modulation for fastest transient response
- Auto phase add/drop for excellent load vs efficiency profile
- PMBus V1.3 support - Telemetry: VIN, VOUT, IOUT, power IN/OUT, temperature, and various fault status registers; Up to 1MHz bus interface
- Flexible phase configuration: 7+0, 6+1, 5+2, and 4+3 phase operation; Operation using fewer than seven phases between two outputs is also supported
- Diode braking for overshoot reduction
- Differential remote voltage sensing supports ±0.5% closed loop system accuracy over load, line, and temperature
- Highly accurate current sensing for excellent load line regulation and accurate OCP
- Comprehensive fault management enables high reliability systems
- Intuitive configuration using PowerNavigator; NVM to store up to eight configurations
- Pb-free (RoHS compliant)
Comparison
Applications
Design & Development
Software & Tools
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Support
Support Communities
Support Communities
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ISL68127
How to use PowerNavigator and ISLUSBEVAL1Z to save the existing configuration of ISL68127 and flash it into another chip? Do I need to supply a full 12V voltage or is 3.3V enough from ISLUSBEVAL1Z? The connection to the chip is good and I see it in the PowerNavigator but ...
Aug 26, 2019 -
ISL68127 have no PWM output
Hi, I'm using ISL68127 with ISL99227 power stage.I connect my board with ISLUSBEVAL1Z and checked VCC/PVCC/VIN/LGCTRL in ISL99227 is correct. When I enable rail 0 I got no PWM output from the ISL68127. I tested IMON-REFIN = 0V and FAILT# is ...
Mar 16, 2024 -
3rd party USB to PMBus adapter
Hello.Can I use a third party USB-PMBus adapter for programming the voltage regulators driven by ISL68127 PWM Controller using PowerNavigator Software? Thanks
May 16, 2019