LTC3450

RECOMMENDED FOR NEW DESIGNS

Triple Output Power Supply for Small TFT-LCD Displays

Part Models: 2
1ku List Price: Starting From $3.37

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Overview

Generates Three Voltages:
- 5.1V at 10mA
- 5V, -10V, or -15V at 500µA
- 10V or 15V at 500µA
Better than 90% Efficiency
Low Output Ripple: Less than 5mV_P-P
Complete 1mm Component Profile Solution
Controlled Power-Up Sequence: AV_DD/V_GL/V_GH
All Outputs Disconnected and Actively Discharged in Shutdown
Low Noise Fixed Frequency Operation
Frequency Reduction Input for High Efficiency in Blank Mode
Ultralow Quiescent Current: 75µA (Typ) in Scan Mode
Available in a 3mm × 3mm 16-Pin QFN Package

The LTC3450 is a complete power converter solution for small thin film transistor (TFT) liquid crystal display (LCD) panels. The device operates from a single Lithium-Ion cell, 2- to 3-cell alkaline input or any voltage source between 1.5V and 4.6V.

The synchronous boost converter generates a low noise, high efficiency 5.1V, 10mA supply. Internal charge pumps are used to generate 10V, 15V, and -5V, -10V or -15V. Output sequencing is controlled internally to insure proper initialization of the LCD panel.

A master shutdown input reduces quiescent current to <2µA and quickly discharges each output for rapid turn off of the LCD panel. The LTC3450 is offered in a low profile (0.75mm), 3mm × 3mm 16-pin QFN package, minimizing the solution profile and footprint.

Applications

Cellular Handsets with Color Display
Handheld Instruments
PDA

Part Models: 2
1ku List Price: Starting From $3.37

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC3450EUD#PBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3450EUD#TRPBF	16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys