DATASHEET ISL68200 FN8705 Single-Phase R4 Digital Hybrid PWM Controller with Integrated Driver, Rev.4.00 Jul 24, 2018 2 PMBus/SMBus/I C, and PFM The ISL68200 is a single-phase synchronous-buck PWM Features controller featuring the proprietary Renesas R4 Technology. Proprietary Renesas R4 Technology The ISL68200 supports a wide 4.5V to 24V input voltage range and a wide 0.5V to 5.5V output range. Integrated LDOs provide - Linear control loop for optimal transient response controller bias voltage, allowing for single supply operation. - Variable frequency and duty cycle control during load 2 The ISL68200 includes a PMBus/SMBus/I C interface for transient for fastest possible response device configuration and telemetry (V , V , I , and IN OUT OUT - Inherent voltage feed-forward for wide range input temperature) and fault reporting. Input voltage range: 4.5V to 24V The proprietary Renesas R4 control scheme has extremely fast Output voltage range: 0.5V to 5.5V transient performance, accurately regulated frequency control, and all internal compensation. An efficiency enhancing PFM 0.5% DAC accuracy with remote sense mode greatly improves light-load efficiency. The ISL68200s Supports all ceramic solutions serial bus allows for easy R4 loop optimization, resulting in Integrated LDOs for single input rail solution fast transient performance over a wide range of applications, 2 including all ceramic output filters. SMBus/PMBus/I C compatible, up to 1.25MHz Built-in MOSFET drivers minimize external components, 256 boot-up voltage levels with a configuration pin significantly reducing design complexity and board space, Eight switching frequency options from 300kHz to 1.5MHz while also lowering BOM cost. The 4A drive strength allows for PFM operation option for improved light-load efficiency faster switching time, improving regulator efficiency. An integrated high-side gate-to-source resistor helps avoid Miller Startup into precharged load coupling shoot-through and improves system reliability. Precision enable input to set higher input UVLO and power sequence as well as fault reset The ISL68200 has four 8-bit configuration pins that provide very flexible configuration options (frequency, V , R4 gain, OUT Power-good monitor for soft-start and fault detection etc.) without the need for built-in NVM memory. This results in Comprehensive fault protection for high system reliability a design flow that closely matches traditional analog - Over-temperature protection controllers, while still offering the design flexibility and feature 2 set of a digital PMBus/SMBus/I C interface. The ISL68200 - Output overcurrent and short-circuit protection also features remote voltage sensing and completely eliminates - Output overvoltage and undervoltage protection any potential difference between remote and local grounds. This - Open remote sense protection improves regulation and protection accuracy. A precision enable - Integrated high-side gate-to-source resistor to prevent self input is available to coordinate the start-up of the ISL68200 with turn-on due to high input bus dV/dt other voltage rails, which is especially useful for power sequencing. Integrated power MOSFETs 4A drivers with adaptive shoot-through protection and bootstrap function Applications Compatible with Renesas PowerNavigator software High efficiency and high density POL digital power Related Literature FPGA, ASIC, and memory supplies For a full list of related documents, visit our website Datacenter servers and storage systems ISL68200 product page Wired infrastructure routers, switches, and optical networking Wireless infrastructure base stations TABLE 1. SINGLE-PHASE R4 DIGITAL HYBRID PWM CONTROLLER OPTIONS 2 PART INTEGRATED PWM PMBus/SMBus/I C NUMBER DRIVER OUTPUT INTERFACE COMPATIBLE DEVICES ISL68200 Yes No Yes Discrete MOSFETs or Dual Channel MOSFETs ISL68201 No Yes Yes Renesas Power Stages: ISL99140 Renesas Drivers: ISL6596, ISL6609, ISL6627, ISL6622, ISL6208 FN8705 Rev.4.00 Page 1 of 33 Jul 24, 2018ISL68200 Table of Contents Typical Applications Circuits 3 Block Diagram 4 Pin Configuration 5 Functional Pin Descriptions . 5 Ordering Information 6 Absolute Maximum Ratings . 7 Thermal Information . 7 Recommended Operating Conditions 7 Electrical Specifications . 7 Operation . 10 IC Supplies . 10 Enable and Disable 10 Resistor Reader (Patented) . 10 Soft-Start . 12 Boot-Up Voltage Programming 12 Current Sensing . 16 Thermal Monitoring and Compensation . 17 I Calibration . 19 OUT Fault Protection . 20 PGOOD Monitor . 21 Adaptive Shoot-Through Protection . 21 PFM Mode Operation . 21 2 SMBus, PMBus, and I C Operation . 21 R4 Modulator . 26 General Application Design Guide 28 Output Filter Design 28 Input Capacitor Selection . 28 Design and Layout Considerations . 29 Voltage Regulator Design Materials 30 Revision History 31 Package Outline Drawing 32 FN8705 Rev.4.00 Page 2 of 33 Jul 24, 2018