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MAX1714 - High-Speed Step-Down Controller

General Description

The MAX1714 pulse-width modulation (PWM) controller provides the high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high-voltage batteries to generate lowvoltage CPU core or chip-set/RAM supplies in notebook computers.

Key Features

  • o Ultra-High Efficiency o No Current-Sense Resistor (Lossless ILIMIT) o Quick-PWM with 100ns Load-Step Response o 1% VOUT Accuracy Over Line and Load o 2.5V/3.3V Fixed or 1V to 5.5V Adjustable Output Range o 2V to 28V Battery Input Range o 200/300/450/600kHz Switching Frequency o Overvoltage Protection (MAX1714A) o Undervoltage Protection o 1.7ms Digital Soft-Start o Drives Large Synchronous-Rectifier FETs o 2V ±1% Reference Output o Power-Good Indicator General.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-1536; Rev 1; 12/99 LS MANUA ION KIT HEET T A U L AS EVA W DAT FOLLO High-Speed Step-Down Controller for Notebook Computers Features o Ultra-High Efficiency o No Current-Sense Resistor (Lossless ILIMIT) o Quick-PWM with 100ns Load-Step Response o 1% VOUT Accuracy Over Line and Load o 2.5V/3.3V Fixed or 1V to 5.5V Adjustable Output Range o 2V to 28V Battery Input Range o 200/300/450/600kHz Switching Frequency o Overvoltage Protection (MAX1714A) o Undervoltage Protection o 1.