Teilenummer : MAX1518B
Function : TFT-LCD DC-DC Converter
Hersteller : Maxim Integrated
Pinout :
Beschreibung :
The MAX1518B includes a high-performance step-up regulator, two linear-regulator controllers, and high-current operational amplifiers for active-matrix, thin-film tran
sistor (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%.
♦2.6V to 6.5V Input Supply Range
♦1.2MHz Current-Mode Step-Up Regulator
Fast Transient Response to Pulsed Load
High-Accuracy Output Voltage (1.5%)
Built-In 14V, 2.4A, 0.16Ωn-Channel MOSFET
High Efficiency (90%)
♦Linear-Regulator Controllers for VGONand VGOFF
♦High-Performance Operational Amplifiers
±150mA Output Short-Circuit Current
13V/µs Slew Rate
12MHz, -3dB Bandwidth
Rail-to-Rail Inputs/Outputs
♦Logic-Controlled, High-Voltage Switch with
Adjustable Delay
♦Timer-Delay Fault Latch for All Regulator Outputs
♦Thermal-Overload Protection
♦0.6mA Quiescent Current