LTC3450
Info : RECOMMENDED FOR NEW DESIGNS
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LTC3450

Triple Output Power Supply for Small TFT-LCD Displays

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $3.37
Features
  • 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 5mVP-P
  • Complete 1mm Component Profile Solution
  • Controlled Power-Up Sequence: AVDD/VGL/VGH
  • 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
Additional Details
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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

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC3450EUD#PBF
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  • HTML
LTC3450EUD#TRPBF
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  • HTML
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC553A

LTC3450EUD | Triple Output TFT-LCD Supply, VIN = 1.5V to 4.6V, VOUT = 5.1V/10mA, 15V/500uA, -10V/500uA

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