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Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 520kB) Download   E-Mail

Description

The MAX1542/MAX1543 include a high-performance boost regulator and two high-current operational amplifiers for active matrix, thin-film transistor (TFT), liquid-crystal displays (LCDs). Also included is a logic- controlled, high-voltage switch with adjustable delay. The MAX1543 includes an additional high-voltage load switch and features pin-selectable boost regulator switching frequency. The step-up DC-to-DC converter is a high-frequency 640kHz (MAX1543)/1.2MHz (MAX1542/MAX1543) current-mode regulator with a built-in power MOSFET that allows the use of ultra-small inductors and ceramic capacitors. It provides fast transient response to pulsed loads while producing efficiencies over 85%. The two easy-to-use, high-performance operational amplifiers can drive the LCD backplane (VCOM) and/or the gamma correction divider string. The devices feature high short-circuit current (150mA), fast slew rate (7.5V/µs), wide bandwidth (12MHz), and rail-to-rail inputs and outputs. The MAX1542/MAX1543 are available in 20-pin thin QFN packages with a maximum thickness of 0.8mm for ultra-thin LCD panel design.

An evaluation kit is available:  MAX1543EVKIT  

Key Features		Applications/Uses
Ultra-High-Performance Step-Up Regulator Fast Transient Response to Pulsed Load Using Current-Mode Control Architecture High-Accuracy Output Voltage (1.3%) Built-In 14V, 1.2A, 0.2Ω N-Channel Power MOSFET with Lossless Current-Sensing High Efficiency (85%) 8-Step Current-Controlled 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 Unity Gain Stable Logic-Controlled High-Voltage Switch with Adjustable Delay Timer Delay Latch FB Fault Protection Thermal Protection 2.6V to 5.5V Input Operating Voltage Range 3.6mA (Switching), 0.45mA (Not Switching) Quiescent Current Ultra-Thin 20-Pin Thin QFN Package (5mm x 5mm x 0.8mm)		Car-Navigation Displays LCD Monitor Panels Notebook Computer Displays PDAs

Diagram

Functional Diagram

Evaluation Kits

MAX1543EVKIT

Reliability Reports

Reliability Report: MAX1542.pdf MAX1543.pdf Show FIT data for: MAX1542 MAX1543 Request Reliability Report for: MAX1542ETP

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-8 of 8

MAX1542ETP	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1542ETP			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0009 (PDF) Use pkgcode/variation: T2055-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1542ETP-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX1542ETP+			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0009 (PDF) Use pkgcode/variation: T2055+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1542ETP+T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX1543	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1543ETP			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0009 (PDF) Use pkgcode/variation: T2055-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1543ETP-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX1543ETP+			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0009 (PDF) Use pkgcode/variation: T2055+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1543ETP+T			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0009 (PDF) Use pkgcode/variation: T2055+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

New Product Press Release 2003-02-20

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