Highly integrated boost regulator provides a cost-effective power solution for LCDs
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Boost regulator integrates charge pumps, switch control, and high-current op amp
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SUNNYVALE, CA—May 7, 2009—Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX17075 boost regulator with integrated charge pumps, switch control, and a high-current operational amplifier. Developed using Maxim's proprietary high-voltage process technology, this device integrates all functions required to power the source drivers, gate drivers, and VCOM backplane in LCDs. It also includes a switch for gate-driver-supply modulation. A highly integrated, step-up DC-DC converter, the MAX17075 provides a cost-effective, high-performance solution for LCD monitors and TVs.
To minimize total solution size, the MAX17075 features a 1.2MHz switching frequency, which allows the use of low-profile inductors and ceramic capacitors. The boost regulator also integrates a power MOSFET and digital soft-start to reduce the number of external components required to control inrush currents. Through this topology, the MAX17075 provides output voltages up to 18V from a 2.5V to 5.5V input, while achieving efficiencies over 85%.
Additionally, the device integrates charge pumps that provide LCD gate-on and gate-off supplies, and it allows the output voltage to be adjusted using external resistive voltage-dividers. The built-in op amp drives the VCOM backplane and features ±500mA short-circuit current with a 45V/µs slew rate.
The MAX17075 is available in a 4mm x 4mm, 24-pin TQFN package, and is fully specified over the -40°C to +85°C extended temperature range. Prices start at $1.10 (1000-up, FOB USA).
Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells high-performance semiconductor products. The Company reported revenue in excess of $2 billion for fiscal 2008. Maxim was founded over 25 years ago with the mission to deliver innovative analog and mixed-signal engineering solutions that add value to its customers' products. To date, it has developed over 5900 products serving the industrial, communications, consumer, and computing markets. For more information, go to www.maxim-ic.com.
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