ISL8011 is an integrated FET, 1. 2A synchronous buck regulator for general purpose point-of load applications. It is optimized for generating low output voltages down to 0. 8V. The supply voltage range is from 2. 7V to 5. 5V allowing the use from common 3. 3V or 5V supply rails and Lithium ion battery inputs. It has guaranteed minimum output current of 1. 2A. 1. 5MHz pulse-width modulation (PWM) switching frequency allowing the use of small external components. The ISL8011 includes a pair of low ON-resistance P-Channel and N-Channel internal MOSFETs to maximize efficiency and minimize external component count. 100% duty-cycle operation allows less than 200mV dropout voltage at 1. 2A. The ISL8011 offers a 200ms Power-On-Reset (POR) timer at power-up. When shutdown, the ISL8011 discharges the output capacitor. Other features include internal digital soft-start, enable for power sequence, overcurrent protection, and thermal shutdown. The ISL8011 is offered in a 10 Ld 3mmx3mm DFN package with 1mm maximum height. The complete converter occupies less than 1cm2 area.

Features

  • High Efficiency Synchronous Buck Regulator with Up to 95% Efficiency
  • 2.7V to 5.5V Supply Voltage
  • 1.2A Output Current
  • 100% Maximum Duty Cycle
  • Peak Current Limiting, Short Circuit Protection
  • 200ms Power-On Reset
  • 3% Output Accuracy Over-Temperature/Load/Line
  • Less than 1µA Logic Controlled Shutdown Current
  • Internal Loop Compensation
  • Internal Digital Soft-Start
  • Over-Temperature Protection
  • Enable
  • Small 10 Ld 3mmx3mm DFN
  • Pb-Free (RoHS Compliant)

Applications

  • DC/DC POL Modules
  • µC/µP, FPGA and DSP Power
  • Plug-in DC/DC Modules for Routers and Switchers
  • Portable Instruments
  • Test and Measurement Systems

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active DFN Tube 100
Availability
Active DFN Reel 6000
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL8011 Datasheet Datasheet PDF 662 KB
User Guides & Manuals
ISL8011EVAL1Z User Guide Manual PDF 335 KB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
AN9208: High Frequency Power Converters Application Note PDF 592 KB
AN1209: Intersil Integrated FET DC/DC Converters in Chinese Application Note PDF 1.56 MB
AN1684: Nonideality of Ground Application Note PDF 397 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
AN9210: A New Pspice Subcircuit For The Power MOSFET Featuring Global Temperature Options Application Note PDF 650 KB
AN9209: A Spice-2 Subcircuit Representation For Power MOSFETs Using Empirical Methods Application Note PDF 387 KB
AN7244: Understanding Power MOSFETs Application Note PDF 349 KB
Other
ISL80103 iSim:PE Model Schematic SXSCH 140 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

Boards & Kits

Part Number Title Type Company
ISL8011EVAL1Z Integrated FET, 1.2A High-Efficiency Synchronous Buck Regulator Evaluation Board Evaluation Renesas