The ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C and ISL62383C family of controllers generate supply voltages for battery-powered systems. These controllers include two pulse-width modulation (PWM) controllers, adjustable from 0. 6V to 5. 5V, and two linear regulators, LDO5 and LDO3, that generate a fixed 5V and an adjustable output respectively, and each can deliver up to 100mA. The ISL62383 and ISL62383C have the same outputs as the ISL62381, ISL62382, ISL62381C and ISL62382C but without LDO3 linear regulator. The channel 2 switching regulator will automatically take over the LDO5 load when programmed to 5V output. This provides a large power savings and boosts efficiency. These controllers include onboard power-up sequencing, two power-good (PGOOD) outputs, digital soft-start, and internal soft-stop output discharge that prevent 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 approximately 28kHz. The ISL62381, ISL62382, ISL62381C and ISL62382C are available in a 32 Ld 5x5 TQFN package, and the ISL62383 and ISL62383C are available in a 28 Ld 4x4 TQFN package. This family of controllers can operate over the extended temperature range (-10°C to +100°C).

Features

  • High Performance R3 Technology
  • Fast Transient Response
  • ±1% Output Voltage Accuracy: -10°C to +100°C
  • Two Fully Programmable Switch-Mode Power Supplies with Independent Operation
  • Programmable Switching Frequency
  • Integrated MOSFET Drivers and Bootstrap Diode
  • Adjustable (+1.2V to +5V) LDO Output
  • Fixed +5V LDO Output with Automatic Switchover to SMPS2
  • 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
  • Fault Identification by PGOOD Pull-Down Resistance
  • Thermal Monitor and Protection
  • Pb-Free (RoHS Compliant)

Applications

  • Notebook and Sub-Notebook Computers
  • PDAs and Mobile Communication Devices
  • 3-Cell and 4-Cell Li+ Battery-Powered Devices
  • General Purpose Switching Buck Regulators

Product Options

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

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C, ISL62383C Datasheet Datasheet PDF 1.17 MB
User Guides & Manuals
ISL62381, ISL62382 User Guide Manual PDF 995 KB
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
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 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
PCN10055 - Alternate Bond Wire Material for Assembly of the Listed Intersil DFN/QFN Packaged Products - STATS ChipPAC Malaysia Product Change Notice PDF 248 KB

Boards & Kits

Part Number Title Type Company
ISL62381HIEVAL1Z High-Efficiency, Quad or Triple-Output System Power Supply Controller Evaluation Board Evaluation Renesas
ISL62381LOEVAL1Z High-Efficiency, Quad or Triple-Output System Power Supply Controller Evaluation Board Evaluation Renesas
ISL62382HIEVAL1Z High-Efficiency, Quad or Triple-Output System Power Supply Controller Evaluation Board Evaluation Renesas
ISL62382LOEVAL1Z High-Efficiency, Quad or Triple-Output System Power Supply Controller Evaluation Board Evaluation Renesas