General Description
The MAX8739 includes a high-performance, step-up regulator and two high-current operational amplifiers for active-matrix thin-film transistor (TFT) liquid-crystal displays (LCDs). The input supply voltage range of the MAX8739 is from 1.8V to 5.5V. The device also includes a logic-controlled, high-voltage switch with adjustable delay.
FEATUREs
♦ 1.8V to 5.5V Input Supply Range
♦ 600kHz/1.2MHz Current-Mode Step-Up Regulator
Fast Transient Response to Pulsed Load
High-Accuracy Output Voltage (1.5%)
Built-In 14V, 1.9A, 0.2Ω n-Channel MOSFET
High Efficiency (> 85%)
Digital Soft-Start
♦ Two High-Performance Operational Amplifiers
±150mA Output Short-Circuit Current
7.5V/µs Slew Rate
12MHz, -3dB Bandwidth
Rail-to-Rail Inputs/Outputs
♦ Logic-Controlled, High-Voltage Switch with
Adjustable Delay
♦ Built-In Power-Up Sequence
♦ Input Supply Undervoltage Lockout
♦ Timer Delay Fault Latch for All Regulator Outputs
♦ Thermal-Overload Protection
APPLICATIONs
Notebook Computer Displays
LCD Monitor Panels
Automotive Displays