LT3595 Buck LED driver IC overview

Description

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LT3595 is a sync DC/DC Buck LED driver IC from . Maximum input voltage is 45.0 V and it drives an output current of up to 0.05 A. Assuming a typical 3.5V LED forward voltage LT3595 can drive up to 10 LED in series.

The LED Buck driver IC features fixed 2000 kHz switching frequency, a feedback voltage of 1.21 V and requires a typical inductor size of 100.0 uH. This combination results in a peak efficiency of ~92 %. LT3595 comes in 1 package option(s) - QFN-56 .

Parameter and feature overview

ParameterValueReplacement
Search Filter
Nr. of Channel 16
V-IN min. 4.5 V
V-IN max. 45.0 V
Nr.of LEDs max. 10
I-OUT? 0.05 A
MOSFET intern
ext.clock sync. no
sync/non-sync sync
Frequency typ. 2000 kHz
Frequency adjustable fixed
Frequency min.
Frequency max.
Softstart no
Softstart adjustable no
Quiescent current max. 17000 uA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max. 125 °C
thermal shutdown typ.
Inductor size 100.0 uH
Inductor suggested by Würth Elektronik
Feedback Voltage 1.21 V
Automotive AEC-Q100 no
Topology Buck
Peak Efficiency 92 %
Component count min. 36
DC Dimming no
PWM Dimming yes
digital dimming no
Nr. of package options 1
SC70
SOT
MSOP
QFN/DFN QFN-56
SO/SOIC
SOP
DIP
TO
Variation
LED temperature compensation no

LT3595 Datasheet

Link to the most up-to-date LT3595 datasheet and the product page for EVM, tools and support information.

LT3595

LT3595 inventory, samples and price

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Available Distributors with stock: 0

no online Distributor with LT3595 stock available

Available Distributors with stock: 1

Digi-Key

ProductStockPriceBuy
LT3595AEUHH#PBF 22
5007.70 €
2507.87 €
1008.29 €
2510.02 €
115.09 €
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DC1552A 1
25209.87 €
1273.36 €
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LT3595EUHH#TRPBF 0
25007.77 €
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LT3595AEUHH#TRPBF 0
25007.77 €
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LT3595EUHH#PBF 0
8010.02 €
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Available Distributors without stock: 3

Arrow Electronics

ProductStockPriceBuy
LT3595EUHH#TRPBF 0
25008.27 $
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LT3595AEUHH#PBF 0
5008.15 $
2508.34 $
1008.44 $
8010.62 $
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LT3595AEUHH#TRPBF 0
25008.54 $
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LT3595EUHH#PBF 0
1008.17 $
809.93 $
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Mouser Electronics

ProductStockPriceBuy
LT3595AEUHH#PBF 0
8011.17 $
1209.23 $
2808.77 $
5208.57 $
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LT3595EUHH#PBF 0
8011.17 $
1209.23 $
2808.77 $
5208.57 $
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LT3595EUHH#TRPBF 0
25008.32 $
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LT3595AEUHH#TRPBF 0
25008.32 $
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Richardson RFPD

ProductStockPriceBuy
LT3595EUHH#PBF 0
809.90 $
1009.35 $
5009.10 $
10008.85 $
50008.52 $
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LT3595EUHH#TRPBF 0
25008.94 $
50008.60 $
Buy Now
LT3595AEUHH#TRPBF 0
25008.94 $
50008.60 $
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LT3595AEUHH#PBF 0
809.90 $
1009.35 $
5009.10 $
10008.85 $
50008.52 $
Buy Now

Equivalents and alternatives

The following DC/DC LED Buck driver are similar to LT3595. Optional, compare LT3595 side-by-side with other LED driver via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT3595A LT3595A product overviewLT3595A product overview Linear Technology QFN-56

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3595.

V-IN min. 4.5 V, V-IN max. 45 V, I-OUT 0.05 A, Frequency typ. 2000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744031101 100.0 0.3 0.2 1,930.00 3.8 x 3.8 x 1.8
744032101 100.0 0.1 0.3 5,200.00 3.2 x 2.5 x 2.3
744032121 120.0 0.1 0.2 5,600.00 3.2 x 2.5 x 2.3
74404041101 100.0 0.4 0.4 1,697.00 4 x 4 x 1.2
744042101 100.0 0.4 0.3 1,170.00 4.8 x 4.8 x 2
744043101 100.0 0.5 0.3 550.00 4.8 x 4.8 x 3
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