The ISL62392C controller generates supply voltage for battery-powered systems. It includes two pulse-width modulation (PWM) controllers, adjustable from 0. 6V to 5. 5V, and a linear regulator (LDO3) that generates a fixed 3. 3V and can deliver up to 100mA. The ISL62392C includes on-board power-up sequencing, a power-good (PGOOD) output, digital soft-start, and internal soft-stop output discharge that prevents negative voltages on shutdown. The patented R3 PWM control scheme provides a low jitter system with fast response to load transients. Light-load efficiency is improved with period-stretching discontinuous conduction mode (DCM) operation. To eliminate noise in audio frequency applications, an ultrasonic DCM mode is included, which limits the minimum switching frequency to 28kHz. The ISL62391, ISL62391C and ISL62392, ISL62392C are identical except for how their overvoltage protection is handled. The ISL62391C utilizes a tri-state overvoltage scheme, whereas the ISL62392C employs a soft-crowbar method. The ISL62392C is available in a 28 Ld 4x4 TQFN package and operates over the extended temperature range (-40°C to +100°C).


  • High Performance R3 Technology
  • Fast Transient Response
  • ±1% Output Voltage Accuracy
  • 2 Fully Programmable Switch-Mode Power Supplies
  • Programmable Switching Frequency
  • Fixed 3.3V LDO Output
  • Internal Soft-Start and Soft-Stop Output Discharge
  • Wide Input Voltage Range: 5.5V to 25V
  • Full and Ultrasonic Pulse-Skipping Mode
  • Power-Good Indicator
  • Overvoltage, Undervoltage and Overcurrent Protection
  • Thermal Monitor and Protection
  • Pb-Free (RoHS Compliant)


  • Notebook and Sub-Notebook Computers
  • PDAs and Mobile Communication Devices
  • 3-Cell and 4-Cell Li+ Battery-Powered Devices

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active TQFN Tube 75
Active TQFN Reel 6000
Active TQFN Tube 75
Active TQFN Reel 6000

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL62391, ISL62392, ISL62391C, ISL62392C Datasheet Datasheet PDF 1.12 MB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
How Green is Your Cloud? White Paper PDF 295 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
PCN14036 - Wafer fabrication Site Change for Listed Intersil Products - Palm Bay, Florida Product Change Notice PDF 294 KB