ADD8733 - Analog Devices

ADD8733 Integrated TFT Panel Power Supply

The ADD8733 is a 4-channel regulator with two VCOM amplifiers and gate pulse modulation (GPM) that provides all the necessary voltages for thin film transistor (TFT) liquid crystal displays (LCD). Included is a step-up regulator, a stepdown regulator for digital logic, two VCOM amplifiers, two charge-pump regulators for VGH and VGL, and an integrated gate pu.

Features

Integrated TFT Panel Power Supply with Gate Modulation and VCOM ADD8733 BLOCK DIAGRAM XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Step-up switching regulator with 3 A switch current limit 8 V to 16.5 V input voltage range Adjustable output voltage up to 20 V 1.2 A series switch for power sequencing Overvoltage protection (OVP) Step-down switching regulator with 3 A switch current limit 8 V to 16.5 V input voltage range www.DataSheet4U.com Adjustable output voltage down to 2.5 V Gate pulse modulator circuitry Independently adjustable delay and falling slope Positive charge-pump .