LT3598 LED Boost Driver overview

Description

Manufacturer
 
Category
Sub-Category

LT3598 is a 6 channel, 30.0 V, 0.03 A/string non-sync LED Boost Driver. It can drive a maximum of 10 LED (~3.5Vfwd) per string, features a adjustable 2500 kHz frequency and is available in 2 package option(s): QFN-24 TSSOP-24 .

Further characteristics are a feedback voltage of 0.120 V, a typical inductor size of 10.0 uH and a peak efficiency of 90 %.

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 6
V-IN min. 3.2 V
V-IN max. 30.0 V
V-OUT max. 44.0 V
Nr.of LED per string typ. 10
I-OUT/string? 0.03 A
current limit typ. 2.00 A
sync/non-sync non-sync
Frequency typ. 2500 kHz
Frequency adjustable
Frequency min. 190 kHz
Frequency max. 2500 kHz
Softstart yes
Softstart adjustable yes
Down-Mode yes
Quiescent current max. 5000 uA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 10.0 uH
feedback voltage 0.120 V
Automotive AEC-Q100 no
Topology Boost
Peak Efficiency 90 %
Component count min. 17
DC dimming yes
PWM dimming yes
PWM frequency min. 0.10 kHz
PWM frequency max. 1.0 kHz
digital dimming no
digital interface no
LED flash no
TxMask no
Nr.of current sources 6
Nr.of package options 2
CSP
SC70
SOT
MSOP
QFN/DFN QFN-24
SO/SOIC
SOP TSSOP-24
DIP

LT3598 Datasheet

Link to the most up-to-date LT3598 datasheet and the product page for EVM, tools and support information.

LT3598

LT3598 inventory, samples and price

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Available Distributors with stock: 7

Arrow Electronics

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LT3598EUF#TRPBF 1924
5003.64 $
2503.72 $
1003.92 $
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LT3598IUF#TRPBF 1745
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LT3598EFE#PBF 132
10003.60 $
5003.74 $
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254.88 $
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LT3598EUF#PBF 15
10003.32 $
5003.45 $
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254.49 $
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LT3598EUF#TRPBF 0
25003.64 $
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10004.10 $
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LT3598IUF#TRPBF 0
25004.22 $
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LT3598IFE#TRPBF 0
25004.35 $
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LT3598IUF#PBF 0
10003.82 $
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LT3598EFE#TRPBF 0
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Digi-Key

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LT3598IFE#TRPBF 2771
1004.53 €
255.48 €
18.26 €
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LT3598IFE#TRPBF 2771
1004.53 €
255.48 €
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LT3598IFE#TRPBF 2500
25004.12 €
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LT3598EUF#TRPBF 2250
1003.68 €
254.45 €
16.71 €
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LT3598EUF#TRPBF 2250
1003.68 €
254.45 €
16.71 €
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LT3598IFE#PBF 2186
1004.33 €
255.23 €
17.88 €
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LT3598EFE#TRPBF 2100
1003.99 €
254.83 €
17.27 €
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LT3598EFE#TRPBF 2100
1003.99 €
254.83 €
17.27 €
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LT3598EUF#PBF 1376
1003.50 €
254.23 €
16.38 €
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LT3598EFE#PBF 985
1003.80 €
254.60 €
16.92 €
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LT3598IUF#PBF 182
1004.03 €
254.87 €
17.33 €
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DC1285A 3
1133.94 €
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LT3598EUF#TRPBF 0
25003.34 €
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LT3598EFE#TRPBF 0
25003.63 €
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LT3598IUF#TRPBF 0
25003.81 €
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Verical

ProductStockPriceBuy
LT3598EUF#PBF 629
1003.97 $
504.08 $
254.20 $
34.33 $
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LT3598EFE#PBF 132
10003.60 $
5003.74 $
2503.83 $
1003.89 $
254.88 $
27.35 $
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LT3598IFE#PBF 17
1004.58 $
255.27 $
37.93 $
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LT3598EUF#PBF 15
10003.32 $
5003.45 $
2503.52 $
1003.58 $
254.49 $
26.77 $
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Mouser Electronics

ProductStockPriceBuy
LT3598EUF#PBF 292
17.13 $
254.73 $
1003.91 $
2503.71 $
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LT3598EFE#PBF 24
17.74 $
255.14 $
1004.25 $
2504.03 $
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LT3598IUF#PBF 105
18.20 $
255.44 $
1004.50 $
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5004.18 $
10004.02 $
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LT3598IFE#PBF 12
18.81 $
255.85 $
1004.83 $
2504.59 $
5004.49 $
10004.32 $
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Quest Components

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LT3598EFE#TRPBF 1416
10231.81 $
2381.96 $
14.52 $
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RS Components

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LT3598IUF#PBF 0
1347.75 GBP
4554.12 GBP
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LT3598IUF#PBF 118
105.01 GBP
503.74 GBP
1003.46 GBP
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LT3598IUF#PBF 118
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LT3598IFE#PBF 0
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LT3598IFE#PBF 37
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105.40 GBP
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LT3598IFE#PBF 37
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LT3598EUF#PBF 0
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LT3598EUF#PBF 130
14.46 GBP
103.69 GBP
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Chip1Stop

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LT3598IUF#PBF 56
503.20 $
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LT3598EUF#PBF 134
1003.44 $
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LT3598EFE#PBF 39
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LT3598EUF#PBF 319
2004.17 $
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Available Distributors without stock: 4

Richardson RFPD

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LT3598IUF#PBF 0
914.83 $
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5004.44 $
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LT3598IFE#PBF 0
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LT3598IUF#TRPBF 0
25004.41 $
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LT3598IFE#TRPBF 0
25004.72 $
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LT3598EUF#PBF 0
1823.97 $
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LT3598EFE#PBF 0
1244.30 $
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Schukat electronic

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LT3598EUFPBF 0
16.25 €
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1003.80 €
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element14 Asia-Pacific

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LT3598IUF#PBF 0
5006.27 SGD
2506.41 SGD
1006.75 SGD
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LT3598EUF#PBF 0
5005.45 SGD
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LT3598EFE#PBF 0
5005.92 SGD
2506.05 SGD
1006.37 SGD
257.71 SGD
111.59 SGD
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Farnell element14

ProductStockPriceBuy
LT3598IUF#PBF 0
5003.26 GBP
2503.34 GBP
1003.42 GBP
503.50 GBP
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15.87 GBP
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LT3598IFE#PBF 0
1003.42 GBP
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LT3598EUF#PBF 0
1002.92 GBP
253.26 GBP
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LT3598EFE#PBF 0
5003.06 GBP
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List with equivalents & alternatives

The following DC/DC LED Boost driver are similar to LT3598. Optional, compare LT3598 side-by-side with other LED driver via the comparison function.

no alternatives found

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3598.

V-IN min. 3.2 V, V-OUT max. 44 V, current limit typ. 2 A, Frequency typ. 2500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744302010 0.1 30.0 45.0 0.24 6.95 x 6.8 x 4.7
744303012 0.1 31.0 55.0 0.33 10 x 6.8 x 5
744307012 0.1 29.0 48.0 0.33 7.4 x 7.2 x 7.2
7443081012 0.1 38.0 85.0 0.29 9.4 x 6.2 x 8.1
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