MAX1518B
EVALUATION KIT AVAILABLE
TFT-LCD DC-DC Converter with Operational Amplifiers
General Description
The MAX1518B...
MAX1518B
EVALUATION KIT AVAILABLE
TFT-LCD DC-DC Converter with Operational Amplifiers
General Description
The MAX1518B includes a high-performance step-up
regulator, two linear-
regulator controllers, and high-current operational amplifiers for active-matrix, thin-film
transistor (TFT), liquid-crystal displays (LCDs). Also included is a logic-controlled, high-voltage switch with adjustable delay.
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) current-mode
regulator with an integrated 14V n-channel MOSFET that allows the use of ultra-small inductors and ceramic capacitors. It provides fast transient response to pulsed loads while achieving efficiencies over 85%.
The gate-on and gate-off linear-
regulator controllers provide regulated TFT gate-on and gate-off supplies using external charge pumps attached to the switching node. The MAX1518B includes five high-performance operational amplifiers. These amplifiers are designed to drive the LCD backplane (VCOM) and/or the gamma-correction divider string. The device features high output current (±150mA), fast slew rate (13V/μs), wide bandwidth (12MHz), and rail-to-rail inputs and outputs.
The MAX1518B is available in a 32-pin thin QFN package with a maximum thickness of 0.8mm for ultra-thin LCD panels.
Applications
●● Notebook Computer Displays ●● LCD Monitor Panels
Ordering Information
PART
TEMP RANGE
MAX1518BETJ
-40°C to +100°C
PIN-...