Overview

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.

ISL8011 Functional Diagram
ISL8011 Functional Diagram
  • 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

Documentation

= Featured Documentation
Type Title Date
Datasheet
ISL8011 Datasheet
PDF 662 KB
Product Change Notice
PCN20029A - Alternate bond wire material and assembly facility of the listed Renesas QFN packaged products
PDF 326 KB
Application Note
AN9208: High Frequency Power Converters
PDF 592 KB
Application Note
AN1209: Intersil Integrated FET DC/DC Converters in Chinese
PDF 1.56 MB
Application Note
AN1681: Grounding Techniques
PDF 509 KB
Application Note
AN1684: Nonideality of Ground
PDF 397 KB
Application Note
AN9210: A New Pspice Subcircuit For The Power MOSFET Featuring Global Temperature Options
PDF 650 KB
Application Note
AN9209: A Spice-2 Subcircuit Representation For Power MOSFETs Using Empirical Methods
PDF 387 KB
Application Note
AN7244: Understanding Power MOSFETs
PDF 349 KB
9 items

Design & Development

Software & Tools
iSim:PE Offline Simulation Tool
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.
Downloads
ISL80103 iSim:PE Model
 Simulator Renesas
1 item
ISL8011EVAL1Z Buck Regulator Eval Board

ISL8011EVAL1Z

Evaluation
Learn More

Integrated FET, 1.2A High-Efficiency Synchronous Buck Regulator Evaluation Board

The ISL8011EVAL1Z evaluation board is used to evaluate the ISL8011, an integrated FET, 1.2A synchronous buck regulator for general purpose point-of-load (POL)...

Featured Documents:
ISL8011EVAL1Z User Guide

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    ISL8011IRZ
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    memory
    spa
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    Samples Available
    		 DFN Tube Get Samples,
    ISL8011IRZ-T
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    memory
    spa
    view_in_ar
    		DFN Reel
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