LT3761-1 Buck (multi-topology) LED driver IC overview
Description
LT3761-1 is a non-sync DC/DC Buck (multi-topology) LED driver IC from . Maximum input voltage is 60.0 V and it drives an output current of up to 5.00 A. Assuming a typical 3.5V LED forward voltage LT3761-1 can drive up to 15 LED in series.
The LED Buck (multi-topology) driver IC features adjustable 1000 kHz switching frequency, a feedback voltage of 0.11 V and requires a typical inductor size of 1.0 uH. This combination results in a peak efficiency of ~95 %. LT3761-1 comes in 1 package option(s) - MSOP-16 .
Parameter and feature overview
LT3761-1 Datasheet
Link to the most up-to-date LT3761-1 datasheet and the product page for EVM, tools and support information.
LT3761-1 inventory, samples and price


Available Distributors with stock: 0
Available Distributors with stock: 0
Equivalents and alternatives
The following DC/DC LED Buck (multi-topology) driver are similar to LT3761-1. Optional, compare LT3761-1 side-by-side with other LED driver via the Comparison function.
Variation | Compare | Product | Manufacturer | Package | |
0% | LM3424 | ![]() |
Texas Instruments | HTSSOP-20 | |
0% | LM3424-Q1 | ![]() |
Texas Instruments | HTSSOP-20 | |
0% | TPS92691 | ![]() |
Texas Instruments | HTSSOP-16 | |
0% | TPS92691-Q1 | ![]() |
Texas Instruments | HTSSOP-16 | |
50% | LT3952 | ![]() |
Linear Technology | TSSOP-28 |
Inductor suggestions
Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3761-1.
Order Code | Spec | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | L x W x H (mm) |
74404084022 | 2.2 | 5.2 | 7.8 | 12.00 | 8 x 8 x 4.2 | |
7440660022 | 2.2 | 6.7 | 6.8 | 7.70 | 10 x 10 x 4.1 | |
744071022 | 2.2 | 5.4 | 6.3 | 10.00 | 8 x 8 x 4.6 | |
744310200 | 2.0 | 6.5 | 9.0 | 14.20 | 7 x 6.9 x 3.3 | |
744314200 | 2.0 | 11.5 | 9.0 | 5.85 | 7 x 6.9 x 5 | |
744316220 | 2.2 | 7.5 | 7.5 | 11.30 | 5.5 x 5.3 x 4.3 | |
7443552280 | 2.8 | 9.5 | 11.0 | 10.60 | 10.5 x 10.2 x 4.2 | |
74438357018 | 1.8 | 5.8 | 8.0 | 18.00 | 4.1 x 4.1 x 3.1 | |
74438357022 | 2.2 | 5.2 | 7.0 | 22.00 | 4.1 x 4.1 x 3.1 | |
7447471022 | 2.2 | 8.2 | 10.0 | 7.50 | 10.5 x 10.5 x 11.5 | |
744771002 | 2.2 | 10.0 | 11.0 | 5.00 | 12 x 12 x 6 | |
7447713022 | 2.2 | 5.1 | 8.5 | 16.80 | 10 x 10 x 3 | |
7447714022 | 2.2 | 8.6 | 9.5 | 6.80 | 10 x 10 x 5 | |
7447715001 | 1.8 | 7.6 | 10.2 | 7.50 | 12 x 12 x 4.5 | |
7447715002 | 2.5 | 6.8 | 8.5 | 8.50 | 12 x 12 x 4.5 | |
744772022 | 2.2 | 6.0 | 8.0 | 7.25 | 7.8 x 7.8 x 9.5 | |
744777002 | 2.2 | 6.0 | 6.5 | 13.00 | 7.3 x 7.3 x 4.5 | |
7447797250 | 2.5 | 8.4 | 10.5 | 9.00 | 10.2 x 10.2 x 4.5 | |
7447798250 | 2.5 | 13.7 | 10.1 | 4.40 | 10.2 x 10.2 x 6.4 | |
784771022 | 2.2 | 7.2 | 10.5 | 10.50 | 12 x 12 x 6.3 | |
784775022 | 2.2 | 6.0 | 6.0 | 8.00 | 7 x 7.8 x 5.5 | |
784776022 | 2.2 | 7.0 | 8.0 | 7.00 | 9 x 10 x 5.9 |