Overview
Description
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)
Comparison
Applications
Documentation
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Type | Title | Date |
Datasheet | PDF 662 KB | |
Product Change Notice | PDF 326 KB | |
Application Note | PDF 592 KB | |
Application Note | PDF 1.56 MB | |
Application Note | PDF 509 KB | |
Application Note | PDF 397 KB | |
Application Note | PDF 650 KB | |
Application Note | PDF 387 KB | |
Application Note | PDF 349 KB | |
9 items
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Design & Development
Software & Tools
Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Support
Support Communities
Support Communities
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Using ISL80111, ISL80112, ISL80113 with very low 0,95V input, 0,85V output
Hi, When using ISL80111, ISL80112, ISL80113 is it possible to supply the voltages below for proper a operation? For ISL80111, Vin = 0,95V nominal, Vbias= 3.3V or 5V nominal, Vout = 0,85V nominal @1A For ISL80112, Vin = 0,95V nominal, Vbias= 3.3V or 5V nominal, Vout = 0,85V ...
Oct 20, 2022