Step-Down (Buck) LED Drivers

Analog Devices step-down (buck) LED drivers are ideal for applications where the input voltage is above the LED voltage, as in many automotive or industrial applications. These LED drivers offer the highest efficiency, lowest noise, and the smallest footprints. Other features include integrated Schottky diodes, accurate LED current matching, and multiple output capability.
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Step-Down (Buck) LED Drivers

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SortOrderPart#Number of OutputsVin
(min)
(V)
Vin
(max)
(V)
Output Current
(typ)
(A)
Vout Max
(typ)
(V)
TopologyMonolithicPrice (1000+)
($ US)
1LT3922-1 1 2.8 36 2 40 Boost, Buck, Buck-Boost Yes $2.71 (LT3922EUFD-1#PBF)
2LT3964 2 4 36 1.6 35.64 Buck, LED Driver Yes $4.50 (LT3964EUHE#PBF)
3LT3932 1 3.6 36 2 36 Buck, LED Driver Yes $2.71 (LT3932EUFD#PBF)
4LT3922 1 2.8 36 2 40 Boost, Buck, Buck-Boost Yes $2.71 (LT3922EUFD#PBF)
5LT3761A 1 4.5 60 10 100 Boost, Buck, Buck-Boost, LED Driver, Sepic No $3.20 (LT3761AEMSE#PBF)
6LT3761 1 4.5 60 10 100 Boost, Buck, Buck-Boost, LED Driver, Sepic No $3.20 (LT3761EMSE#PBF)
7LT3952 1 3 42 4 60 Boost, Buck, Buck-Boost, LED Driver Yes $3.95 (LT3952EFE#PBF)
8LT3744 1 3.3 36 40 36 Buck, LED Driver No $3.95 (LT3744EUHE#PBF)
9LT8613 1 3.4 42 6 41.58 Buck Yes $5.20 (LT8613EUDE#PBF)
10LT3795 1 4.5 110 10 110 Boost, Buck, Buck-Boost, LED Driver, Sepic No $3.45 (LT3795EFE#PBF)
11LT3797 3 2.5 40 5 100 Boost, Buck, Buck-Boost, LED Driver, Sepic No $4.95 (LT3797ELXE#PBF)
12LT3763 1 6 60 20 55 Buck, LED Driver No $2.28 (LT3763EFE#PBF)
13LT8611 1 3.4 42 2.5 40 Buck Yes $3.80 (LT8611EUDD#PBF)
14LT3745-1 16 6 55 75m 36 Buck, LED Driver Yes $4.95 (LT3745EUJ-1#PBF)
15LT3796 1 6 100 10 100 Boost, Buck, Buck-Boost, LED Driver, Sepic No $3.45 (LT3796EFE#PBF)
16LT3745 16 6 55 75m 36 Buck, LED Driver Yes $4.95 (LT3745EUJ#PBF)
17LTM8042-1 1 3 30 350m 32 Boost, Buck, LED Driver Yes $8.76 (LTM8042EV-1#PBF)
18LTM8042 1 3 30 1 32 Boost, Buck, LED Driver Yes $8.76 (LTM8042EV#PBF)
19LT3596 3 6 60 300m 60 Buck, LED Driver Yes $3.65 (LT3596EUHG#PBF)
20LT3746 32 6 55 30m 13 Buck, LED Driver Yes $4.95 (LT3746EUHH#PBF)
21LT3741 1 6 36 25 34 Buck, LED Driver No $3.95 (LT3741EUF#PBF)
22LT3597 3 6 60 100m 57 Buck, LED Driver Yes $3.95 (LT3597EUHG#PBF)
23LT3743 1 6 36 20 30 Buck, LED Driver No $4.80 (LT3743EUFD#PBF)
24LT3519 1 3 30 500m 45 Boost, Buck, Buck-Boost, LED Driver, Sepic Yes $2.50 (LT3519EMS#PBF)
25LTM8040 1 4 36 1 13 Buck, LED Driver Yes $7.45 (LTM8040EV#PBF)
26LT3956 1 4.5 80 1.5 80 Boost, Buck, Buck-Boost, Flyback, LED Driver, Sepic Yes $3.50 (LT3956EUHE#PBF)
27LT3595A 16 4.5 45 50m 45 Buck, LED Driver Yes $6.95 (LT3595AEUHH#PBF)
28LT3756 1 6 100 10 100 Boost, Buck, Buck-Boost, LED Driver, Sepic No $2.90 (LT3756EUD#PBF)
29LT3755 1 4.5 40 10 75 Boost, Buck, Buck-Boost, LED Driver, Sepic No $2.75 (LT3755EUD#PBF)
30LT3592 1 3.6 36 500m 36 Buck, LED Driver Yes $1.65 (LT3592EDDB#TRPBF)
31LT3492 3 3 30 300m 60 Boost, Buck, Buck-Boost, LED Driver Yes $3.70 (LT3492EUFD#PBF)
32LT3517 1 3 30 1.25 40 Boost, Buck, Buck-Boost, LED Driver Yes $2.70 (LT3517EUF#PBF)
33LT3595 16 4.5 45 50m 45 Buck, LED Driver Yes $6.95 (LT3595EUHH#PBF)
34LT3590 1 4.5 55 50m 55 Buck, LED Driver Yes $1.40 (LT3590EDC#TRPBF)
35LT3518 1 3 30 1.86 45 Boost, Buck, Buck-Boost, LED Driver Yes $2.95 (LT3518EUF#PBF)
36LT3496 3 3 30 700m 45 Boost, Buck, Buck-Boost, LED Driver Yes $3.50 (LT3496EUFD#PBF)
37LT3476 4 2.8 16 1 36 Boost, Buck, Buck-Boost, LED Driver Yes $4.64 (LT3476EUHF#PBF)
38LT3475-1 2 4 36 1.5 25 Buck, LED Driver Yes $3.50 (LT3475EFE-1#PBF)
39LT3475 2 4 36 1.5 15 Buck, LED Driver Yes $3.50 (LT3475EFE#PBF)
40LT3478 1 2.8 36 4.2 42 Boost, Buck, Buck-Boost, LED Driver Yes $3.60 (LT3478EFE#PBF)
41LT3474-1 1 4 36 1 26 Buck, LED Driver Yes $2.95 (LT3474EFE-1#PBF)
42LT3474 1 4 36 1 15 Buck, LED Driver Yes $2.95 (LT3474EFE#PBF)
43LT3477 1 2.3 25 2.66 40 Boost, Buck, Buck-Boost, LED Driver Yes $3.15 (LT3477EUF#PBF)
44AD8240 1 9 27---- $1.29 (AD8240YRMZ)
45LT1618 1 1.6 18 1 36 Boost, Flyback, Sepic Yes $1.75 (LT1618EDD#PBF)