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LINEAR TECHNOLOGY  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
Technical Data Sheet (245.14KB) EN See all Technical Docs

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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

Product Information

Device Topology:
Boost, Buck, Buck-Boost
No. of Outputs:
1Outputs
Output Current:
1.5A
Output Voltage:
7V
Driver Case Style:
QFN
No. of Pins:
16Pins
Input Voltage Min:
3V
Input Voltage Max:
30V
Switching Frequency:
2.5MHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • LED Lighting;
  • Automotive;
  • Avionics;
  • Consumer Electronics

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000073

Alternatives

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