MAX1889 Datasheet Triple-Output TFT LCD Power Supply

Manufacturer: Maxim Integrated (now Analog Devices)

MAX1889 triple-output tft lcd power supply by Maxim Integrated (now Analog Devices) - Datasheet Preview

Datasheet Details

Part number	MAX1889
Manufacturer	Maxim Integrated (now Analog Devices)
File Size	796.09 KB
Description	Triple-Output TFT LCD Power Supply
Datasheet	MAX1889 Datasheet

General Description

The MAX1889 provides the three regulated output voltages required for active matrix, thin-film transistor liquid crystal displays (TFT LCDs).

It combines a high-performance step-up regulator with two linear-regulator controllers and multiple levels of protection circuitry for a complete power-supply system.

The main DC-DC converter is a high-frequency (500kHz/1MHz), current-mode step-up regulator with an integrated N-channel power MOSFET that allows the use of ultra-small inductors and ceramic capacitors.

Overview

19-2485; Rev 1; 10/02 MAX1889 Triple-Output TFT LCD Power Supply with Fault Protection.

Key Features

o High-Performance Step-Up Regulator Fast Transient Response Current-Mode Control Architecture Built-In High-Efficiency N-Channel Power MOSFET Current-Limit Comparator >85% Efficiency Selectable Switching Frequency (500kHz/1MHz) Internal Soft-Start o Positive Linear-Regulator Controller o Negative Linear-Regulator Controller o Triple-Level Protection Against Smoke or Fire Input Switch Replaces Input Fuse Output Overload Detection with Timer Latch Thermal Shutdown o 2.7V to 5.5V Input Operating R.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number	Description
MAX188	Serial 12-Bit ADCs
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MAX1887	Quick-PWM Slave Controllers
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