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.

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

ISL8011屬于集成電路（IC） > 穩(wěn)壓器 - 線性。瑞薩科技有限公司制造生產的ISL8011穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉換為熱量。對于大多數(shù)應用而言，雖然這種穩(wěn)壓器的效率低于開關模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。