General Description

The MAX1513/MAX1514 provide complete power-supply solutions for active-matrix thin-film transistor (TFT) liquid-crystal displays (LCDs). Both devices include a high-performance step-up regulator controller, three linear-regulator controllers, and an adjustable delay block for startup sequencing. The MAX1513 includes an additional linear-regulator controller and a high-performance buffer amplifier. The MAX1513/MAX1514 can operate from 2.7V to 5.5V input supplies and provide overload protection with timer delay latch on all the regulated outputs.

Features

♦ 2.7V to 5.5V Input Supply Range

♦ Input-Supply Undervoltage Lockout

♦ Current-Mode Step-Up Controller

   Fast Transient Response to Pulsed Load

   High Efficiency

   Lossless Current Sensing

   430kHz/750kHz/1.5MHz Switching Frequency

♦ Linear-Regulator Controllers for VGON, VGOFF

♦ Linear-Regulator Controller for Logic Supply

♦ High-Performance Buffer Amplifier (MAX1513 Only)

♦ Additional Linear-Regulator Controller

   (MAX1513 Only)

♦ Power-Up Sequence and VGON Delay Control

♦ VMAIN, VGON, VGOFF, VGAMMA Shutdown Control

♦ Timer-Delay Fault Latch for All Outputs

♦ Thermal-Overload Protection

Applications

   Notebook Computer Displays

   LCD Monitors and TVs

   Automotive Displays