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MAX8728 Datasheet Low-cost - Multiple-output Power Supply

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-3910; Rev 0; 1/06 .. Low-Cost, Multiple-Output Power Supply for LCD.

General Description

The MAX8728 generates all the supply rails for thin-film transistor (TFT) liquid-crystal display (LCD) panels in TVs and monitors.

It includes step-down and step-up regulators, positive and negative charge pumps, and a dualmode, logic-controlled high-voltage switch control block.

The MAX8728 can operate from input voltages from 7V to 13.2V and is optimized for LCD TV panel and LCD monitor applications running directly from 12V supplies.

Key Features

  • Optimized for 10.8V to 13.2V Input Supply 7V to 13.2V Input Supply Range Selectable Frequency (500kHz/1MHz/1.5MHz) Current-Mode Step-Down Regulator 14V Internal n-Channel MOSFET 1.5% Accurate Output Current-Mode Step-Up Regulator 19V Internal n-Channel MOSFET 1% Accurate Output True Shutdown™ (Output Goes to Zero) 180° Out-of-Phase Switching Adjustable Positive/Negative Charge Pumps Soft-Start and Timer Delay Fault Latch for All Outputs Logic-Controlled, High-Voltage Switches Power-Up and Power.

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MAX877 5V/3.3V/3V/Adjustable-Output / Step-Up/Step-Down DC-DC Converters

MAX8728 Distributor