LT3763
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LT3763

60V High Current Step-Down LED Driver Controller

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Part Details
Part Models 6
1ku List Price Starting From $2.69
Features
  • Accurately Control Input and Output Current
  • 3000:1 True Color PWM Dimming
  • ±1.5% Voltage Regulation Accuracy
  • ±6% Current Regulation Accuracy
  • 6V to 60V Input Voltage Range
  • Wide Output Range Up to 55V
  • <2µA Shutdown Current
  • Control Pin for Thermal Control of Load Current
  • Input and Output Current Monitor and Limit
  • Open, Short, and C/10 Fault Detection
  • PWM Driver Output for LED Applications
  • Thermally Enhanced 28-Lead FE Package
Additional Details
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The LT3763 is a fixed frequency, synchronous, step-down DC/DC controller designed to accurately regulate output currents up to 20A. The average current mode controller will maintain inductor current regulation over a wide output voltage range from 0V to 55V. Output current is set by analog voltages on the CTRL pins and an external sense resistor. Voltage regulation and overvoltage protection are set with a voltage divider from the output to the FB pin. The switching frequency is programmable from 200kHz to 1MHz through an external resistor on the RT pin or with the SYNC pin and an external clock signal. Input and output current sensing provides input current limiting and an accurate measurement of these currents. The FBIN pin is provided for applications requiring a peak power tracking function.

Additional features include an accurate external reference voltage for use with the CTRL pins, an accurate UVLO/EN pin that allows for programmable UVLO hysteresis, a PWM driver for LED applications, output voltage fault detection, and thermal shutdown.

Applications

  • High Power Architectural Lighting
  • Automotive Lighting
  • Aviation and Marine Strobe Lights
  • Solar-Powered Chargers, Laser Diodes
Part Models 6
1ku List Price Starting From $2.69

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

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Apr 6, 2022

- 22_0068

Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

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Mar 13, 2019

- 19_0060

LT3763 Data Sheet Specification Change

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Filter by Model

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Part Models

Product Lifecycle

PCN

Apr 6, 2022

- 22_0068

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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LT3763EFE#PBF

PRODUCTION

LT3763EFE#TRPBF

PRODUCTION

LT3763HFE#PBF

PRODUCTION

LT3763HFE#TRPBF

PRODUCTION

LT3763IFE#PBF

PRODUCTION

LT3763IFE#TRPBF

PRODUCTION

Mar 13, 2019

- 19_0060

arrow down

LT3763 Data Sheet Specification Change

LT3763EFE#PBF

PRODUCTION

LT3763EFE#TRPBF

PRODUCTION

LT3763HFE#PBF

PRODUCTION

LT3763HFE#TRPBF

PRODUCTION

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC1831A

LT3763 Demo Board | High Power CC/CV Synchronous Buck LED Driver Controller

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DC1831A

LT3763 Demo Board | High Power CC/CV Synchronous Buck LED Driver Controller

LT3763 Demo Board | High Power CC/CV Synchronous Buck LED Driver Controller

Product Detail

Demonstration circuit 1831A is a high power constant current, constant voltage synchronous buck controller featuring the LT3763. The input of the demo board is up to 60V. The output is optimized for 10V, 10A as a LED driver. The input voltage range of the LT3763 itself is 6V to 60V.

The demo board input range is 12V to 60V, therefore, the demo board utilizes 80V MOSFETs. If an application has a maximum input voltage of 48V, 60V MOSFETs such as BSC100N06LS3, can be used for better efficiency at lower voltage range.
Tools & Simulations

Tools & Simulations 1

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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