LTC3453

PRODUCTION

Synchronous Buck-Boost High Power White LED Driver

Data Sheet Product Selection Table

Part Models: 2
1ku List Price: Starting From $2.25

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Part Details

High Efficiency: 90% Typical Over Entire Li-Ion Battery Range
Wide V_IN Range: 2.7V to 5.5V
Up to 500mA Continuous Output Current
Internal Soft-Start
Open/Shorted LED Protection
LED Current Matching Typically <2%
Constant Frequency 1MHz Operation
Low Shutdown Current: 6µA
Overtemperature Protection
Small Thermally Enhanced 16-Lead (4mm x 4mm) QFN Package

Part Models: 2
1ku List Price: Starting From $2.25

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
LTC3453EUF#PBF	16-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3453EUF#TRPBF	16-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

LTspice 1

LTC3453 - LED Driver IC

Models for the following parts are available in LTspice:

LTC3453

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

LTC3453EUF Demo Board | Buck-Boost Flash(500mA)/Torch(150mA) LED Driver, 2.7 ≤ VIN ≤ 5.5V, VLED

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Product Details

Demonstration circuit 810 is a high efficiency buck-boost flash LED driver featuring the LTC3453 and the LXCL-PWF1 Lumileds Luxeon Flash LED. The board is optimized for 500mA (300ms) LED flash current or 150mA constant LED torch current with a single Lithium-Ion battery input voltage range of 2.7V to 4.2V or three AAA batteries in series. The Lithium-Ion battery input voltage range, high LED flash current and separate torch mode current setting, internal synchronous power switches, minimal and low-profile external components, and simple design makes the LTC3453 a great solution for highly efficient, space-constrained cellular telephone camera flash solutions. DC810 comes with three AAA batteries in series to simulate the capabilities of a typical Lithium-Ion cellular telephone battery.

Resources

DC810A - Demo Manual
453.00K

DC810A - Schematic
27.00K

DC810A - Design File
858.00K

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LTC3453

Part Details

Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 2

Press Release 1