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ADI LTC3454EDD#TRPBF product image
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ADI LTC3454EDD#TRPBFRoHS

Manufacturer
ADI
MPN
LTC3454EDD#TRPBF
LCSC Part #
C684807
Packaging
DFN-10-EP(3x3)
Customer #
Key Attributes
1A Synchronous Buck-Boost High Current LED Driver
Datasheetpdf iconADI LTC3454EDD#TRPBF
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QtyUnit Price(Reference Only)Total Amount
1+$ 6.065$ 6.07
10+$ 5.241$ 52.41
30+$ 4.7393$ 142.18
100+$ 4.317$ 431.70
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs
ManufacturerADI
PackagingDFN-10-EP(3x3)
Output Voltage-
FeaturesOver-Temperature Protection (OTP)
Frequency - Switching1MHz
Switch Tube (Built-In/External)Built-in
Operating temperature-40℃~+85℃
TopologyBuck;Boost
Number of Channels1
TypeDC-DC
Output Current1A
Constant Current Accuracy3.5%
Voltage - Input(DC)2.7V~5.5V
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The LTC3454 is a synchronous buck-boost DC/DC converter optimized for driving a single high power LED at currents up to 1A from a single cell Li-Ion battery input. The regulator operates in either synchronous buck, synchronous boost, or buck-boost mode depending on input voltage and LED forward voltage. PLED/PIN efficiency greater than 90% can be achieved over the entire usable range of a Li-Ion battery (2.7V to 4.2V). LED current is programmable to one of four levels, including shutdown, with dual external resistors and dual enable inputs. In shutdown no supply current is drawn. A high constant operating frequency of 1MHz allows the use of small external components. The LTC3454 is offered in a low profile (0.75mm) thermally enhanced 10-lead (3mm×3mm) DFN package.

Features

AI Translation
  • High Efficiency: √90% Typical in Torch Mode, √80% in Flash Mode
  • Wide VIN Range: 2.7V to 5.5V
  • Up to 1A Continuous Output Current
  • 3.5% LED Current Programming Accuracy
  • Internal Soft-Start
  • Open/Shorted LED Protection
  • Constant Frequency 1MHz Operation
  • Zero Shutdown Current
  • Overtemperature Protection
  • Small Thermally Enhanced 10-Lead (3mm×3mm) DFN Package

Applications

AI Translation
  • Cell Phone Camera Flash
  • Cell Phone Torch Lighting
  • Digital Cameras
  • PDAs
  • Misc Li-Ion LED Drivers