Led Driver, 1 Output, Boost (Step Up), 2.5V-12V in, 2.3MHz switch, 27V/200mA out, DFN-6

LT3491EDC#TRMPBF - Led Driver, 1 Output, Boost (Step Up), 2.5V-12V in, 2.3MHz switch, 27V/200mA out, DFN-6

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

Manufacturer Part No:
Order Code:
Technical Datasheet:
See all Technical Docs

Product Information

Boost (Step Up)
MSL 1 - Unlimited
Find similar products Choose and modify the attributes above to find similar products.

Product Overview

The LT3491EDC#TRMPBF is a fixed frequency step-up DC/DC Converter specifically designed to drive up to six white LEDs in series from a Li-Ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The device features unique high-side LED current sense that enables the part to function as a one wire current source, one side of the LED string can be returned to ground anywhere, allowing a simpler one wire LED connection. Traditional LED drivers use a grounded resistor to sense LED current, requiring a 2-wire connection to the LED string. The 2.3MHz switching frequency allows the use of tiny inductors and capacitors. A single pin performs both shutdown and accurate LED dimming control.
  • Internal Schottky diode
  • One pin dimming and shutdown
  • ±5% Reference accuracy
  • Requires only 1µF output capacitor
  • High-side sense allows 'one wire current source'


Consumer Electronics, Computers & Computer Peripherals, Portable Devices, Audio

Associated Products

Compare Selected

Related Searches

Packaging type Cut Tape
  Additional packaging options available
Re-reel (minimum 10/reel):1715220RL Check stock

No Longer Stocked

No longer stocked:: true No Longer Manufactured::
*Note: If you have selected a re-reeled item a £3.50 charge will be applied.
A re-reel is a custom reel available for cut tape items where the order qty exceeds 10
NOTE: Shipments for different packaging options may come from a remote warehouse. Please see delivery and lead time information for each packaging option.

Customer Reviews


Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.


Select document type(s) you want to see and click “Apply Filters” button
Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.