The ISL6721A is a low power, single-ended pulse width modulating (PWM) current mode controller designed for a wide range of DC/DC conversion applications including boost, flyback, and isolated output configurations. Peak current mode control effectively handles power transients and provides inherent overcurrent protection. Other features include a low power mode where the supply current drops to less than 200µA during overvoltage and overcurrent shutdown faults. It differs from the ISL6721 in that the UVLO and UV thresholds have been modified. This advanced BiCMOS design features low operating current, adjustable operating frequency up to 1MHz, adjustable soft-start, and a bidirectional SYNC signal that allows the oscillator to be locked to an external clock for noise sensitive applications.

Features

  • 1A MOSFET Gate Driver
  • 100µA Startup Current
  • Fast Transient Response with Peak Current Mode Control
  • Adjustable Switching Frequency up to 1MHz
  • Bidirectional Synchronization
  • Low Power Disable Mode
  • Delayed Restart from OV and OC Shutdown Faults
  • Adjustable Slope Compensation
  • Adjustable Soft-start
  • Adjustable Overcurrent Shutdown Delay
  • Adjustable UV and OV Monitors
  • Leading Edge Blanking
  • Integrated Thermal Shutdown
  • 1% Tolerance Voltage Reference
  • Pb-Free (RoHS Compliant)

Applications

  • Telecom and Datacom Power
  • Wireless Base Station Power
  • File Server Power
  • Industrial Power Systems
  • Isolated Buck and Flyback Regulators
  • Boost Regulators

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active QFN Tube 100
Availability
Active QFN Reel 6000
Availability
Active TSSOP Tube 96
Availability
Active TSSOP Reel 2500
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL6721A Datasheet Datasheet PDF 1.29 MB
Application Notes & White Papers
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
PCNs & PDNs
PCN21006 - Alternate assembly facility of the listed Renesas TSSOP packaged products Product Change Notice PDF 131 KB
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
PCN12094 - Alternate Manufacturing Site for Assembly of the Listed Intersil Packaged Products - Amkor Technology, Philippines (ATP) Product Change Notice PDF 98 KB