Power

MAX17122: Power-management IC provides a highly integrated, cost-effective solution for LCD HDTV panels

24th February 2010
ES Admin
0
Maxim Integrated Products announces the MAX17122, a multiple-output power-supply IC that integrates three regulators whose high-efficiency and fixed-frequency operation allow the use of small inductors and capacitors. This results in a compact and cost-competitive solution for the power requirements of thin-film transistor (TFT) LCD HDTV panels. The MAX17122 operates from 8V to 16.5V input voltages and is optimized for applications running directly from 12V regulated supplies.
The MAX17122 includes a 22V internal-switch step-down regulator for digital logic; a 16.5V internal-switch step-up regulator to power the TFT source drivers; and a temperature-compensated 36V internal-switch boost-buck regulator that produces a negative output which varies according to the temperature sensed by an external NTC thermistor. The GATE output directly drives an external p-channel MOSFET to provide True Shutdown(TM) of the step-up output.

The MAX17122 is available in a 6mm x 6mm, 40-pin TQFN package and operates over the -40 degrees Celsius to +85 degrees Celsius temperature range. Prices star at $1.10 (1000-up, FOB USA)

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