DESCRIPTION
The LT®1943 quad output adjustable switching regulator provides power for large TFT LCD panels. The device, housed in a low profile 28 pin thermally enhanced TSSOP package, can generate a 3.3V or 5V logic supply along with the triple output supply required for the TFT LCD panel.
   
FEATURES
■ 4 Integrated Switches: 2.4A Buck, 2.6A Boost,
    0.35A Boost, 0.35A Inverter (Guaranteed Minimum
    Current Limit)
■ Fixed Frequency, Low Noise Outputs
■ Soft-Start for all Outputs
■ Externally Programmable VON Delay
■ Integrated Schottky Diode for VON Output
■ PGOOD Pin for AVDD Output Disconnect
■ 4.5V to 22V Input Voltage Range
■ PanelProtectTM Circuitry Disables VON Upon Fault
■ Available in Thermally Enhanced 28-Lead TSSOP
   
APPLICATIONS
■ Large TFT-LCD Desktop Monitors
■ Flat Panel Televisions