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MAX17122 - Boost-Buck Regulator

General Description

The MAX17122 multiple-output power-supply IC generates all the supply rails for thin-film transistor (TFT) liquidcrystal display (LCD) TV panels.

It can operate from 8V to 16.5V input voltages and is optimized for LCD TV panel applications running directly from 12V regulated supplies.

Key Features

  • include an external-capacitor-timed, open-drain, power-good output that monitors the stepdown regulator’s feedback and a simple untimed output that monitors the positive charge-pump linear regulator’s feedback. A high-voltage stress function is available for the step-up regulator output. The GATE output directly drives an external p-channel MOSFET to provide True ShutdownK of the step-up output. The MAX17122 is available in a 6mm x 6mm, 40-pin thin QFN lead-free package and operates over the -40.

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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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  _ MAX17122 19-4951; Rev 1; 11/09 EVAALVUAAILTAIOBNLEKIT Step-Up, Step-Down Regulator, Gate-On Charge Pump, and Boost-Buck Regulator for TV TFT LCD Display General Description The MAX17122 multiple-output power-supply IC generates all the supply rails for thin-film transistor (TFT) liquidcrystal display (LCD) TV panels. It can operate from 8V to 16.5V input voltages and is optimized for LCD TV panel applications running directly from 12V regulated supplies.