LT3590

PRODUCTION

48V Buck Mode LED Driver in SC70 and 2mm × 2mm DFN

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Part Models
4
1ku List Price
Starting From $1.71
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Part Details

  • 4.5V to 55V Input Voltage Range
  • Up to 50mA LED Current
  • 80mA, 55V Switch
  • Internal Schottky Diode
  • 15µA Supply Current in Shutdown
  • 500µA Supply Current Operating, Not Switching
  • Switching Frequency: 850kHz
  • 200mV Feedback Voltage with ±5% Accuracy
  • CTRL Input Performs Dimming and Shutdown
  • 91% Efficiency (10 LEDs, 50mA)
  • Requires Only 1µF Output Capacitor
  • 8-Lead SC70 Package
  • 6-Lead 2mm × 2mm DFN Package
LT3590
48V Buck Mode LED Driver in SC70 and 2mm × 2mm DFN
Buck Mode Driver for Ten White LEDs Conversion Efficiency Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LT3590
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

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schematic 5
DC1166A

LT3590EDC Demo Board | Buck Mode LED Driver, Tiny Package, 4.5V ≤ VIN ≤ 54V, VLED up to 40V at 50mA

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Product Details

Demonstration circuit 1166 is a 48V Buck-Mode LED Driver featuring the LT3590. The LT3590 is a fixed frequency buck mode converter specifically designed to drive up to 10 LEDs in series at up to 50mA LED current. Series connection of the LEDs results in uniform LED brightness, eliminating the need for ballast resistors. The demo board targets 48V power applications but has a wide 4.5V to 54V (55V absolute max) input voltage range.
DC1166A
LT3590EDC Demo Board | Buck Mode LED Driver, Tiny Package, 4.5V ≤ VIN ≤ 54V, VLED up to 40V at 50mA
DC1166A Demo Board DC1166A Demo Board DC1166A Demo Board DC1166A Demo Board DC1166A - Schematic

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6 Years Ago
Overshoot at SW pin on LT3590
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