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MAX1845 - Dual / High-Efficiency / Step-Down Controller with Accurate Current Limit

Features

  • o Ultra-High Efficiency o Accurate Current-Limit Option o Quick-PWM™ with 100ns Load-Step Response o 1% VOUT Accuracy over Line and Load o Dual Mode™ Fixed 1.8V/1.5V/Adj or 2.5V/Adj Outputs o Adjustable 1V to 5.5V Output Range o 2V to 28V Battery Input Range o 200/300/420/540kHz Nominal Switching Frequency o Adjustable Overvoltage Protection o 1.7ms Digital Soft-Start o Drives Large Synchronous-Rectifier FETs o Power-Good Window Comparator o 2V ±1% Reference Output The MAX1845 is a dual PWM con.

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Full PDF Text Transcription

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19-1955; Rev 2; 1/03 KIT ATION EVALU E L B AVAILA Dual, High-Efficiency, Step-Down Controller with Accurate Current Limit MAX1845 General Description Features o Ultra-High Efficiency o Accurate Current-Limit Option o Quick-PWM™ with 100ns Load-Step Response o 1% VOUT Accuracy over Line and Load o Dual Mode™ Fixed 1.8V/1.5V/Adj or 2.5V/Adj Outputs o Adjustable 1V to 5.5V Output Range o 2V to 28V Battery Input Range o 200/300/420/540kHz Nominal Switching Frequency o Adjustable Overvoltage Protection o 1.
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