LT3763
LT3763
PRODUCTION60V High Current Step-Down LED Driver Controller
- Part Models
- 6
- 1ku List Price
- Starting From $3.40
Viewing:
Overview
- 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
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
Documentation
Data Sheet 1
User Guide 1
Design Note 1
Technical Articles 2
Video 1
Brochure 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT3763EFE#PBF | 28-Lead TSSOP w/ EP | ||
| LT3763EFE#TRPBF | 28-Lead TSSOP w/ EP | ||
| LT3763HFE#PBF | 28-Lead TSSOP w/ EP | ||
| LT3763HFE#TRPBF | 28-Lead TSSOP w/ EP | ||
| LT3763IFE#PBF | 28-Lead TSSOP w/ EP | ||
| LT3763IFE#TRPBF | 28-Lead TSSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
May 18, 2026 - 26_0072 Epoxy Change for Select TSSOP Products |
||
| LT3763EFE#PBF | PRODUCTION | |
| LT3763EFE#TRPBF | PRODUCTION | |
| LT3763HFE#PBF | PRODUCTION | |
| LT3763HFE#TRPBF | PRODUCTION | |
| LT3763IFE#PBF | PRODUCTION | |
| LT3763IFE#TRPBF | PRODUCTION | |
|
Apr 6, 2022 - 22_0068 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 LT3763 Data Sheet Specification Change |
||
| LT3763EFE#PBF | PRODUCTION | |
| LT3763EFE#TRPBF | PRODUCTION | |
| LT3763HFE#PBF | PRODUCTION | |
| LT3763HFE#TRPBF | PRODUCTION | |
| LT3763IFE#PBF | PRODUCTION | |
| LT3763IFE#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Hot Swap Controllers 1 | ||
| LTC4364 | RECOMMENDED FOR NEW DESIGNS | Surge Stopper with Ideal Diode |
Tools & Simulations
LTspice 3
- LT3763 Demo Circuit - 20A, Pulse Width Modulated, Single LED Driver (10-30V to 6V LED @ 20A)
- LT3763 Demo Circuit - 1A, Five LED Driver (32-60V to 30V LED String @ 1A)
- LT3763 Demo Circuit - 70W, Solar Powered SLA Battery Charger with Maximum Power Point Regulation (37-60V to 14V @ 5A)
Models for the following parts are available in LTspice:
- LT3763
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
LT3763 Demo Board | High Power CC/CV Synchronous Buck LED Driver Controller