The ISL6263A IC is a Single-Phase Synchronous-Buck PWM voltage regulator featuring Intersil's Robust Ripple Regulator (R3) Technology™. The ISL6263A is an implementation of the Intel® Mobile Voltage Positioning (IMVP) protocol for GPU Render Engine core power. Integrated power monitor, droop amplifier, MOSFET drivers, and bootstrap diode result in smaller implementation area and lower component cost. Intersil's R3 Technology™ combines the best features of both fixed-frequency PWM and hysteretic PWM, delivering excellent light-load efficiency and superior load transient response by commanding variable switching frequency during the transitory event. For maximum conversion efficiency, the ISL6263A automatically enters diode emulation mode (DEM) should the inductor current attempt to flow negative. DEM is highly configurable and easy to setup. A PWM filter can be enabled that prevents the switching frequency from entering the audible spectrum as a result of extremely light load while in DEM. The Render core voltage can be dynamically programmed from 0.41200V to 1.28750V by the five VID input pins without requiring sequential stepping of the VID states. The ISL6263A requires only one capacitor for both the soft-start slew-rate and the dynamic VID slew-rate by internally connecting the SOFT pin to the appropriate current source. Processor socket Kelvin sensing is accomplished with an integrated unity-gain true differential amplifier.

Features

  • Precision Single-phase Core Voltage Regulator
  • 0.5% System Accuracy 0 °C to +100 °C
  • Differential Remote GPU Die Voltage Sensing
  • Differential Droop Voltage Sensing
  • Real-time GPU Power Monitor Output
  • Applications Up to 25A
  • Input Voltage Range: +5.0V to +25.0V
  • Programmable PWM Frequency: 200kHz to 500kHz
  • Pre-biased Output Start-up Capability
  • 5-bit Voltage Identification Input (VID)
  • 1.28750V to 0.41200V
  • 25.75mV Steps
  • Sequential or Non-sequential VID Change On-the-fly
  • Configurable PWM Modes
  • Forced Continuous Conduction Mode
  • Automatic Entry and Exit of Diode Emulation Mode
  • Selectable Audible Frequency PWM Filter
  • Integrated MOSFET Drivers and Bootstrap Diode
  • Choice of Current Sensing Schemes
  • Lossless inductor DCR Current Sensing
  • Precision Resistive Current Sensing
  • Overvoltage, Undervoltage, and Overcurrent Protection
  • Pb-free (RoHS compliant)

tuneProduct Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active QFN Tube 60
Availability
Active QFN Reel 6000
Availability
Active QFN Tube 60
Availability
Active QFN Reel 6000
Availability

descriptionDocumentation

Title language Type Format File Size Date
Datasheets & Errata
star ISL6263A Datasheet Datasheet PDF 944 KB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
PCNs & PDNs
PCN21016 - Correction of Moisture Sensitivity Level and Alternate bond wire material of the listed Renesas DFN, QFN, TDFN, TQFN packaged products Product Change Notice PDF 202 KB
PCN20029A - Alternate bond wire material and assembly facility of the listed Renesas QFN packaged products Product Change Notice PDF 327 KB
PCN13025 - Alternate Bond Wire Material and Manufacturing Facilities for Assembly of the Listed Intersil DFN/QFN Packaged Products - Advanced Semiconductor Engineering (ASECL) - Chung-Li , Taiwan and STATS ChipPAC (SCM) - Kuala Lumpur, Mal Product Change Notice PDF 106 KB
PCN13009 - Alternate Bond Wire Material and Manufacturing Facilities for Assembly of the Listed Intersil DFN/QFN Packaged Products - Advanced Semiconductor Engineering (ASECL) - Chung-Li (ASECL), Taiwan and STATS ChipPAC (SCM) - Kuala Lump Product Change Notice PDF 173 KB
PCN10055 - Alternate Bond Wire Material for Assembly of the Listed Intersil DFN/QFN Packaged Products - STATS ChipPAC Malaysia Product Change Notice PDF 248 KB

memoryBoards & Kits

Part Number Title Type Company
ISL6263AEVAL1Z 5-Bit VID Single-Phase Voltage Regulator with Power Monitor Evaluation Board Evaluation Renesas