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LINEAR TECHNOLOGY  LTC3454EDD#PBF  Led Driver, Boost/Buck, PWM Dimming, 2.7V-5.5V in, 1MHz switch, 5.35V/1A out, DFN-10

LINEAR TECHNOLOGY LTC3454EDD#PBF
Manufacturer Part No:
LTC3454EDD#PBF
Order Code:
1226284
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LTC3454EDD#PBF is a 1A synchronous buck-boost high current LED Driver 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 (2.7 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.
  • High efficiency (>90% typical in torch mode, >80% in flash mode)
  • 3.5% LED current programming accuracy
  • Internal soft-start
  • Open/shorted LED protection
  • Zero shutdown current
  • Over-temperature protection

Product Information

Device Topology:
Buck-Boost
No. of Outputs:
1Outputs
Output Current:
1A
Output Voltage:
5.35V
Driver Case Style:
DFN
No. of Pins:
10Pins
Input Voltage Min:
2.7V
Input Voltage Max:
5.5V
Switching Frequency:
1MHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Communications & Networking
  • Consumer Electronics
  • Multimedia
  • Imaging, Video & Vision
  • LED Lighting

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000079

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