The ISL62883C is a multiphase PWM buck regulator for microprocessor or graphics processor core power supply. The multiphase buck converter uses interleaved phases to reduce the total output voltage ripple with each phase carrying a portion of the total load current, providing better system performance, superior thermal management, lower component cost, reduced power dissipation, and smaller implementation area. The ISL62883C uses two integrated gate drivers and an external gate driver to provide a complete solution. The PWM modulator is based on the Intersil Robust Ripple Regulator (R3™) technology. Compared with traditional modulators, the R3 modulator commands variable switching frequency during load transients, achieving faster transient response. With the same modulator, the switching frequency is reduced at light load, increasing the regulator efficiency. The ISL62883C can be configured as a CPU or graphics Vcore controller and is fully compliant with Intel IMVP-6. 5 specifications. It responds to PSI# and DPRSLPVR signals by adding or dropping PWM3 and Phase 2 respectively, adjusting the overcurrent protection threshold accordingly, and entering and exiting Diode Emulation mode. It reports the regulator output current through the IMON pin. It senses the current by using either a discrete resistor or inductor DCR whose variation over temperature can be thermally compensated by a single NTC thermistor. It uses differential remote voltage sensing to accurately regulate the processor die voltage. The adaptive body diode conduction time reduction function minimizes the body diode conduction loss in Diode Emulation mode. User-selectable overshoot reduction function offers an option to aggressively reduce the output capacitors as well as the option to disable it for users concerned about increased system thermal stress. In 2-phase configuration, the ISL62883C offers the FB2 function to optimize 1-Phase performance.

Features

  • Programmable 1, 2-, or 3-phase CPU or GPU mode of operation
  • Precision multiphase core voltage regulation
  • 0.5% system accuracy over-temperature
  • Enhanced load line accuracy
  • Microprocessor voltage identification input
  • 7-Bit VID input, 0V to 1.500V in 12.5mV steps
  • Supports VID changes on-the-fly
  • Supports multiple current sensing methods
  • Lossless inductor DCR current sensing
  • Precision resistor current sensing
  • Supports PSI# and DPRSLPVR modes
  • Superior noise immunity and transient response
  • Current monitor and thermal monitor
  • Differential remote voltage sensing
  • High efficiency across entire load range
  • Two integrated gate drivers
  • Excellent dynamic current balance
  • FB2 function optimizes 1-phase mode performance
  • Adaptive body diode conduction time reduction
  • User-selectable overshoot reduction function
  • Small footprint 40 Ld 5x5 TQFN packages
  • Pb-free (RoHS compliant)

Applications

  • Notebook Core Voltage Regulator
  • Notebook GPU Voltage Regulator

Product Options

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

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL62883C Datasheet Datasheet PDF 2.08 MB
ISL62883C Data Short Short Form Datasheet PDF 189 KB
User Guides & Manuals
ISL8200MEVAL2PHZ User Guide Manual PDF 683 KB
ISL62883EVAL2Z User Guide Manual PDF 2.23 MB
ISL62883CEVAL2Z User Guide Manual PDF 2.19 MB
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
PCN14036 - Wafer fabrication Site Change for Listed Intersil Products - Palm Bay, Florida Product Change Notice PDF 294 KB
PCN12095 - Alternate Bond Wire Material for Assembly of the Listed Intersil QFN Packaged Products -Carsem (CAS) Ipoh, Malaysia Product Change Notice PDF 85 KB
PCN12052 - Alternate Manufacturing Site for Assembly of the Listed Intersil QFN Packaged Products - Advanced Semiconductor Engineering - Chung-Li, Taiwan (ASECL) Product Change Notice PDF 90 KB
PCN12032 - Alternate Bond Wire Material for Assembly of the Listed Intersil DFN/QFN Packaged Products -Carsem (CAS) Ipoh, Malaysia Product Change Notice PDF 164 KB
PCN12032A - Alternate Bond Wire Material for Assembly of the Listed Intersil DFN/QFN Packaged Products - Carsem (CAS) Ipoh, Malaysia Product Change Notice PDF 171 KB
PCN11048A - Alternate Manufacturing Site for Assembly of Intersil ISL62882CHRTZ* and ISL62883CHRTZ* TQFN Packaged Products - Advanced Semiconductor Engineering - Chung-Li, Taiwan (ASECL) Product Change Notice PDF 106 KB
PCN11048 - Alternate Manufacturing Site for Assembly of Intersil ISL62882C* and ISL62883C* TQFN Packaged Products - Advanced Semiconductor Engineering - Chung-Li, Taiwan (ASECL) Product Change Notice PDF 130 KB
Other
TB495: ISL62882C, ISL62883C Connection Guidelines for 1-Phase Configuration Other PDF 214 KB
TB496: VR_ON Timing Guidelines for ISL6288x Products Other PDF 245 KB

Boards & Kits

Part Number Title Type Company
ISL62883CEVAL2Z Multiphase PWM Regulator Evaluation Board for IMVP-6.5™ Mobile CPUs Evaluation Renesas
ISL62883EVAL2Z Multiphase PWM Regulator Evaluation Board for IMVP-6.5™ Mobile CPUs Evaluation Renesas