LT1942 - Quad DC/DC Converter For Triple Output TFT Supply Plus LED Driver

The LT1942 is a highly integrated quad Switching Regulator designed to provide all necessary power supply functions for TFT Displays including the white LED backlight driver. The TFT supply incorporates two boost and one inverting DC/DC converters. The TFT supply output voltages are independently set, unlike Charge Pump solutions which have many limitations. Power sequencing for the TFT supply is built into the part and is user programmable. The LED Driver is a boost DC/DC converter that CAN be independently controlled. The LED Driver has built-in dimming control for precise control of LED current. An 8:1 dimming range is achieved by adjusting the CTRL4 voltage.The user CAN elect to drive a single string or two strings of LEDs An LED ballast circuit is included to precisely match the LED currents if two strings of LEDs are used. Soft-start is built into the LED Driver as well as the primary TFT supply.
The LT1942 is available in a low profile (0.75mm) 24-lead QFN (4mm 4mm) package.
By Linear Technology Corporation
LT1942 's PackagesLT1942 's pdf datasheet
LT1942EUF QFN
LT1942EUF-PBF QFN
LT1942EUF-TR QFN
LT1942EUF-TRPBF QFN




LT1942 Pinout, Pinouts
LT1942 pinout,Pin out
This is one package pinout of LT1942,If you need more pinouts please download LT1942's pdf datasheet.

LT1942 Application circuits
LT1942 circuits
This is one application circuit of LT1942,If you need more circuits,please download LT1942's pdf datasheet.


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