EC9219 Datasheet PDF

E-CMOS EC9219

The EC9219 include a high-performance step-up regulator, and high-current operational amplifiers for active-matrix thin-film transistor (TFT) liquid-crystal displays (LCDs). The step-up DC-DC converter provides the regulated supply voltage for the panel source driver ICs. The converter is a high-frequency (1.2MHz or 640KHZ) current-mode regulator with an integrated 18V n-channel MOSFET that allows the use of ultra-small inductors and ceramic capacitors.

Part No.	EC9219
Datasheet	EC9219 Download
Manufacturer	E-CMOS
Description	TFT-LCD DC-DC Converters
Buy	Stock & Price

GENERAL DESCRIPTION

It provides fast transient response to pulsed loads while achieving efficiencies over 85%. The EC9219 includes one operational amplifier. These amplifiers are designed to drive the LCD backplane (VCOM) and/or the gamma-correction divider string. The devices feature high output current (±150mA), fast slew rate (17V/μs), wide bandwidth (12MHz), and rail-to-rail inputs and outputs The EC9219 are available in 14- pin thin TSOP packages with a maximum thickness of 1mm for ultra-thin LCD panels.

FEATURES

z 2.6V to 5.5V Input Supply Range z 1.2MHz or 640KHZ Current-Mode Step-Up Regulator z Fast Transient Response to Pulsed Load z High-Accuracy Output Voltage ( 2% ) z Built-In 18V, 1.6A, 0.16Ω N-Channel MOSFET z High Efficiency (90%) z High-Performance Operational Amplifiers z 17V/μs Slew Rate z 12MHz, -3dB Bandwidth z Rail-to-Rail Inputs/Outputs z Thermal-Overload Protection

APPLICATIONS

z Notebook Computer Displays , z LCD Monitor Panels , z Automotive Displays Ordering i...