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LT3518EUF#PBF - 

Led Driver, 1 Output, Boost, Buck, Buck-Boost, 3V-30V in, 2.5MHz switch, 7V/1.5A out, QFN-16

LINEAR TECHNOLOGY LT3518EUF#PBF

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

Manufacturer Part No:
LT3518EUF#PBF
Order Code:
1432694
Technical Datasheet:
(EN)
See all Technical Docs

Product Information

:
30V
:
-40°C
:
1.5A
:
1Outputs
:
QFN
:
125°C
:
16Pins
:
7V
:
3V
:
-
:
-
:
Boost, Buck, Buck-Boost
:
2.5MHz
:
Each
:
MSL 1 - Unlimited
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Product Overview

The LT3518EUF#PBF is a current mode DC/DC Converter with an internal 2.3A, 45V switch specifically designed to drive LEDs. The LT3518 operates as a LED driver in boost, buck mode and buck-boost mode. It combines a traditional voltage loop and unique current loop to operate as a constant-current source or constant-voltage source. Programmable switching frequency allows optimization of the external components for efficiency or component size. The switching frequency of the LT3518 can be synchronized to an external clock signal. The LED current is externally programmable with a 100mV sense resistor. The external PWM input provides 3000:1 LED dimming. The CTRL pin provides further 10:1 dimming ratio.
  • Open LED protection
  • Gate driver for PMOS LED disconnect
  • Constant-current and constant-voltage regulation
  • <1µA Low shutdown current
  • 100mV High-side current sense

Applications

LED Lighting, Automotive, Avionics, Consumer Electronics

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