The ISL6535 is a high performance synchronous controller for demanding DC/DC converter applications. It provides overcurrent fault protection and is designed to safely start-up into prebiased output loads. The output voltage of the converter can be precisely regulated to as low as 0. 597V, with a maximum tolerance of ±1% over the commercial temperature range, and ±1. 5% over the industrial temperature range. The ISL6535 provides simple, single feedback loop, voltage mode control with fast transient response. It includes a triangle wave oscillator that is adjustable from below 50kHz to over 1. 5MHz. Full (0% to 100%) PWM duty cycle support is provided. The error amplifier features a 15MHz gain bandwidth product and 6V/µs slew rate, which enables high converter bandwidth for fast transient performance. The ISL6535's overcurrent protection monitors the current by using the rDS(ON) of the upper MOSFET, which eliminates the need for a current sensing resistor.

Features

  • Operates from +12V input
  • Excellent output voltage regulation
  • 0.597V internal reference
  • ±1% over the commercial temperature range
  • ±1.5% over the industrial temperature range
  • Simple single-loop control design
  • Voltage-mode PWM control
  • Fast transient response
  • High-bandwidth error amplifier
  • Full 0% to 100% duty ratio
  • Leading and falling edge modulation
  • Small converter size
  • Constant frequency operation
  • Oscillator programmable from 50kHz to over 1.5MHz
  • 12V high-speed MOSFET gate drivers
  • 2.0A source/3A sink at 12V low-side gate drive
  • 1.25A source/2A sink at 12V high-side gate drive
  • Drives two N-channel MOSFETs
  • Overcurrent fault monitor
  • High-side MOSFET's rDS(ON) sensing
  • Reduced ~120ns blanking time
  • Converter can source and sink current
  • Soft-start done and an external reference pin for tracking applications are available in the QFN package
  • Pin compatible with ISL6522
  • Supports start-up into prebiased loads
  • Pb-free (RoHS compliant)

Applications

  • Power Supply for some Pentium®, PowerPC, as well as Graphic CPUs
  • High-Power 12V Input DC/DC Regulators
  • Low-Voltage Distributed Power Supplies

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active SOICN Tube 500
Availability
Active SOICN Reel 2500
Availability
Active QFN Tube 75
Availability
Active QFN Reel 6000
Availability
Active SOICN Tube 500
Availability
Active SOICN Reel 2500
Availability
Active QFN Tube 75
Availability
Active QFN Reel 6000
Availability
Active QFN Reel 1000
Availability

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL6535 Datasheet Datasheet PDF 793 KB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
PCNs & PDNs
PCN15046 - Wafer Fabrication Site Change for Listed Intersil Products - Global Foundry P6 Process transfer to Palm Bay - Phase II Product Change Notice PDF 398 KB
PCN13026 - Alternate Manufacturing Site for Assembly of the Listed Intersil SOIC Packaged Products - Amkor Technology, Philippines (ATP) Product Change Notice PDF 77 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
PCN12068 - SOIC w/ Copper Bond Wire @ ASECL as Alternate Assembly Site Product Change Notice PDF 108 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
Other
ISL6535 iSim:PE Model Schematic SXSCH 148 KB
PA21001 - Datasheet specification change for list Renesas ISL6535* Products Product Advisory PDF 130 KB
PA16061 - Introduce New T-type End Plug for n-SOIC rail (packing tube) Product Advisory PDF 106 KB
PLC14051A - Product Discontinuance / Obsolescence Notification Product Life Cycle Notice PDF 124 KB

Software & Tool Pages

Title Type Description Company
iSim:PE Offline Simulation Tool Simulator iSim 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. Renesas