LTC3450
Triple Output Power Supply for Small TFT-LCD Displays
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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
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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
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LTC3450
Documentation
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Documentation
Data Sheet 1
Reliability Data 1
User Guide 1
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)
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| LTC3450EUD#TRPBF |
16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)
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- LTC3450EUD#PBF
- Pin/Package Drawing
-
16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
- LTC3450EUD#TRPBF
- Pin/Package Drawing
-
16-Lead QFN (3mm x 3mm x 0.75mm w/ EP)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Software & Part Ecosystem
Evaluation Kits 1
DC553A
LTC3450EUD | Triple Output TFT-LCD Supply, VIN = 1.5V to 4.6V, VOUT = 5.1V/10mA, 15V/500uA, -10V/500uA
Product Detail
DC553A: Demo Board for the LTC3450 Triple Output Power Supply for Small TFT-LCD Displays.
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