升压型稳压器，开关控制和运算放大器，用于TFT LCD Step-Up Regulator with Switch Control and Operational Amplifier for TFT LCD
General Description
The MAX8758 includes a high-performance step-up regulator, a high-speed operational amplifier, and a logic controlled, high-voltage switch-control block with programmable delay. The device is optimized for thin-film transistor TFT liquid-crystal display LCD applications.
Features
♦ 1.8V to 5.5V Input Voltage Range
♦ Input Undervoltage Lockout
♦ 0.5mA Quiescent Current
♦ 640kHz/1.2MHz Current-Mode Step-Up Regulator
Fast Transient Response
High-Accuracy Output Voltage 1.5%
Built-In 14V, 2.5A, 115mΩ MOSFET
High Efficiency
Programmable Soft-Start
Current Limit with Lossless Sensing
Timer-Delay Fault Latch
♦ High-Speed Operational Amplifier
±150mA Output Current
7.5V/µs Slew Rate
12MHz, -3dB Bandwidth
Rail-to-Rail Inputs/Outputs
♦ Dual-Mode™, Logic-Controlled, High-Voltage Switch with Programmable Delay
♦ Thermal-Overload Protection
♦ 24-Pin, 4mm x 4mm, Thin QFN Package
Applications
Notebook Displays
LCD Monitors