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The ISL6406MREP and ISL6406MVEP are adjustable frequency, synchronous buck switching regulators optimized for generating lower voltages for distributed DC/DC architectures. Both devices feature an adjustable output voltage. Designed to drive N-Channel MOSFETs in a synchronous buck topology, the ISL6406MREP and ISL6406MVEP integrate the control, output adjustment and protection functions into a single package. The ISL6406MREP and ISL6406MVEP provide simple, single feedback loop, voltage-mode control with fast transient response. The output voltage can be precisely regulated to as low as 0. 8V. The error amplifier features a 15MHz gain-bandwidth product and 6V/µs slew rate which enables high converter bandwidth for fast transient performance. Protection from overcurrent conditions is provided by monitoring the rDS(on) of the upper MOSFET to inhibit PWM operation appropriately. This approach simplifies the implementation and improves efficiency by eliminating the need for a current sense resistor. The wide programmable switching frequency range of 100kHz to 700kHz allows the use of small surface mount inductors and capacitors. The device also provides external frequency synchronization making it an ideal choice for DC/DC converter applications. Device Information The specifications for an Enhanced Product (EP) device are defined in a Vendor Item Drawing (VID), which is controlled by the Defense Supply Center in Columbus (DSCC). Hotlinks to the applicable VID and other supporting application information are provided on our website.


  • Specifications per DSCC VID V62/08610
  • Full Mil-Temp Electrical Performance from -55°C to +125°C
  • Controlled Baseline with One Wafer Fabrication Site and One Assembly/Test Site
  • Full Homogeneous Lot Processing in Wafer Fab
  • No Combination of Wafer Fabrication Lots in Assembly
  • Full Traceability Through Assembly and Test by Date/Trace Code Assignment
  • Enhanced Process Change Notification
  • Enhanced Obsolescence Management
  • Eliminates Need for Up-Screening a COTS Component
  • Operates from 3.3V/5V Input
  • 0.8V to VIN Output Range
  • 0.8V Internal Reference
  • ±2.1% Reference Accuracy Over-Temperature
  • Simple Single-Loop Control Design
  • Voltage-Mode PWM Control
  • Fast Transient Response
  • High-Bandwidth Error Amplifier
  • Lossless, Programmable Overcurrent Protection
  • Uses Upper MOSFET's rDS(on)
  • Programmable Switching Frequency 100kHz to 700kHz
  • External Frequency Synchronization
  • Internal Soft-Start


  • 3V/5V DC/DC Converter Modules
  • Distributed DC/DC 33V, 25V and 18V Power Architectures for DSP, Logic, and Memory
  • Power Supplies for Microprocessors PCs Embedded Controllers
  • Memory Supplies
  • Personal Computer Peripherals

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL6406MR, ISL6406MV Datasheet PDF 124 KB
User Guides & Manuals
ISL6406EVAL1x User Guide Manual PDF 584 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
AN9867: End of Life Derating: A Necessity or Overkill Application Note PDF 338 KB
Intersil Space Products Brochure Brochure PDF 3.14 MB
Vendor Item Drawing (VID) V62/08610 (ISL6406MV) Other 0 KB