目录
一,产品概述(General Description) The JTMA7130,JTMA7131,JTMA7132 integrates with a high-performance step-up converter, two linear-regulator controllers, a high voltage switch and one (JTMA7130), three (JTMA7131) or five (JTMA7132) high current operational amplifiers for TFT-LCD applications.The main step-up regulator is a current-mode, fixed-fre-quency PWM switching regulator. The 1.2MHz switching frequency allows the usage of low-profile inductors and ceramic capacitors to minimize the thickness of LCD panel designs. The linear-regulator controllers used external transistors provide regulated the gate-driver of TFT-LCD VGON and VGOFF supplies. The amplifiers are ideal for VCOM and VGAMMA applications, with 150m A peak output current drive, 10MHz bandwidth, and 13V/µs slew rate. All inputs and outputs are rail-to-rail. The JTMA7130/1/2 is available in a tiny 5mm x 5mm 32-pin QFN package (TQFN5x5-32). 二.产品特点(Features) 1.)2.6V to 6.5V Input Supply Range 1.)Current-Mode Step-Up Regulator Fast Transient Response 1.2MHz Fixed Operating Frequency 1.)±1.5% High-Accuracy Output Voltage 2.)3A, 20V, 0.25Ω Internal N-Channel MOSFET 3.)High Efficiency 4.)Low Quiescent Current (0.6mA Typical) 5.)Linear-Regulator Controllers for VGON and VGOFF 5.)High-performance Operational Amplifiers ±150mA Output Short-Circuit Current 13V/µs Slew Rate 10MHz, -3dB Bandwidth Rail-to-Rail Inputs/Outputs 6.)Fault-Delay Timer and Fault Latch for All 7.)Regulator Outputs 8.)Over-Temperature Protection 9.)Available in Compact 32-pin 5mmx5mm Thin QFN Package (TQFN5x5-32) 10.) (责任编辑:oumao18) |