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Manufacturer / Brand: AD
Details: Synchronous Buck-Boost High Power White LED Driver
Series: LTC3453
Quantity Available: Over 59400 pieces

Datasheet for LTC3453:

LTC3453 datasheet
Price for LTC3453
Product Parameters
  • Manufacturer Part Number : LTC3453
  • Manufacturer : AD
  • Description : Synchronous Buck-Boost High Power White LED Driver
  • Series : LTC3453
  • Reference Price : USD 1.48
  • Our Price : We have a better price, contact us by email
  • Product Type : LED Driver IC
  • Function : Buck-Boost LED Drivers
  • Current Suggest : Production
  • Status : Production
  • RoHS Status: -
  • Voltage: -
  • Feature: -
  • Package Case: -
  • Temperature Range: -
  • Packing: Reel/Tray/Tube
  • Standard Packing Quantity: -
  • Country of Origin: -
  • Other Part Number : LTC3453
  • Shipping methods : DHL FEDEX UPS TNT
  • Delivery Time : Ship within 1 day.
  • Manufacturer Production time : 6-8 weeks (Normally have stocks)
  • Weight : 0.001KG

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Features and Benefits of LTC3453
Product Detailed Description for LTC3453

The LTC3453 is a synchronous buck-boost DC/DC converter optimized for driving up to 4 white LEDs at a combined current of up to 500mA from a single Li-Ion battery input. The regulator operates in either synchronous buck, synchronous boost, or buck-boost mode, depending on input voltage and LED maximum forward voltage. Optimum efficiency is achieved using a proprietary architecture that determines which LED requires the largest forward voltage drop at its programmed current, and regulates the common output rail for lowest dropout. Efficiency of 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 current setting resistors and dual enable pins. In shutdown, the supply current is only 6µA.

A high constant operating frequency of 1MHz allows the use of a small external inductor. The LTC3453 is offered in a low profile (0.75mm) thermally enhanced 16-lead (4mm x 4mm) QFN package.

Applications

  • Cell Phones
  • Digital Cameras
  • PDAs
  • Portable Devices
Lifecycle information of LTC3453

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

LTC3453 More photos
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