LT3437 Buck Converter overview

Description

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LT3437 is a 60.00 V non-sync Buck Converter from with 0.40 A output current. The maximum 60.00 V input voltage can be regulated down into a 1.25 V to 30.00 V output voltage.

It requires are a typical inductor size of 100.00 µH, a typical external component count of 13 and achieves a peak efficiency of 80 %. Further LT3437 characteristics are a fixed 200 kHz switching frequency and 2 available package option(s): DFN-10 TSSOP-16 .

For the LT3437 replacement search, please select a main parameter tolerance value and adjust the checkboxes for feature match. The product counter within the button shows the number of available equivalents and a click on the replacement button shows all possible replacements within a parametric overview.

ParameterValueReplacement
Search Filter
V-IN min. 3.30 V
V-IN max. 60.00 V
I-OUT? 0.40 A
V-OUT min. 1.25 V
V-OUT max. 30.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 200 kHz
Frequency fixed
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 240 kHz
Frequency adj./ ext.clock max 700 kHz
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK no
Quiescent current max. 1000 µA
Operating min. -40 °C
Operating max. 140 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 100.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 80 %
Component count min. 13
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT
MSOP
QFN/DFN DFN-10
SO/SOIC
SOP TSSOP-16
DIP
TO
DDPAK

LT3437 Datasheet

Link to the most up-to-date LT3437 datasheet and the product page for EVM, tools and support information.

LT3437

LT3437 Sample stock and distributor price breaks

LT3437 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with LT3437 stock available

Available Distributors with stock: 7

Arrow Electronics

ProductStockPriceBuy
LT3437IDD#TRPBF 2032
1003.64 $
254.41 $
16.64 $
Buy Now
LT3437IFE#PBF 941
10003.09 $
5003.21 $
2503.29 $
1003.46 $
254.19 $
16.32 $
Buy Now
LT3437HFE#PBF 314
10003.37 $
5003.52 $
2503.59 $
1003.78 $
254.58 $
16.90 $
Buy Now
LT3437EDD#PBF 272
10002.54 $
5002.63 $
2502.70 $
1002.84 $
253.43 $
15.18 $
Buy Now
LT3437IFE#PBF 209
2503.39 $
1003.46 $
254.19 $
16.32 $
Buy Now
LT3437HFE#PBF 80
2503.71 $
1003.78 $
254.58 $
16.90 $
Buy Now
LT3437IFE#PBF 0
10003.09 $
5003.21 $
2503.29 $
1903.46 $
Buy Now
LT3437IDD#TRPBF 0
25003.64 $
Buy Now
LT3437HFE#TRPBF 0
25003.63 $
Buy Now
LT3437IFE 0 Buy Now
LT3437EFE#TRPBF 0
25003.15 $
Buy Now
LT3437IFE#TRPBF 0
25003.34 $
Buy Now
LT3437EDD#TRPBF 0
25002.75 $
Buy Now
LT3437EFE#PBF 0
10002.59 $
5002.70 $
2502.76 $
1902.91 $
Buy Now
LT3437IDD#PBF 0
10003.04 $
5003.16 $
2503.24 $
1213.41 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT3437IFE#PBF 2511
1003.28 €
253.97 €
15.98 €
Buy Now
LT3437EFE#PBF 2510
1002.75 €
253.33 €
15.00 €
Buy Now
LT3437EFE#TRPBF 2494
1003.00 €
253.63 €
15.47 €
Buy Now
LT3437EFE#TRPBF 2494
1003.00 €
253.63 €
15.47 €
Buy Now
LT3437IDD#PBF 2373
1003.23 €
253.91 €
15.88 €
Buy Now
LT3437IDD#TRPBF 1789
1003.47 €
254.20 €
16.33 €
Buy Now
LT3437IDD#TRPBF 1789
1003.47 €
254.20 €
16.33 €
Buy Now
LT3437EDD#PBF 1201
1002.69 €
253.26 €
14.91 €
Buy Now
LT3437HFE#PBF 573
1003.58 €
254.33 €
16.53 €
Buy Now
DC1232A 1
190.50 €
Buy Now
LT3437EFE#TRPBF 0
25002.69 €
Buy Now
LT3437IDD#TRPBF 0
25003.11 €
Buy Now
LT3437EDD#TRPBF 0
25002.62 €
Buy Now
LT3437IFE#TRPBF 0
25003.21 €
Buy Now
LT3437HFE#TRPBF 0
25003.42 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LT3437IFE#PBF 941
10003.09 $
5003.21 $
2503.29 $
1003.46 $
254.19 $
26.32 $
Buy Now
LT3437HFE#PBF 314
10003.37 $
5003.52 $
2503.59 $
1003.78 $
254.58 $
26.90 $
Buy Now
LT3437EDD#PBF 272
10002.54 $
5002.63 $
2502.70 $
1002.84 $
253.43 $
35.18 $
Buy Now
LT3437IFE#PBF 209
2503.39 $
1003.46 $
254.19 $
26.32 $
Buy Now
LT3437HFE#PBF 80
2503.71 $
1003.78 $
254.58 $
26.90 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT3437EDD#PBF 2709
15.45 $
253.61 $
1002.99 $
2502.84 $
5002.77 $
10002.67 $
Buy Now
LT3437EFE#PBF 285
15.58 $
253.70 $
1003.06 $
2502.90 $
5002.84 $
10002.73 $
Buy Now
LT3437IDD#PBF 334
16.55 $
254.34 $
1003.59 $
2503.41 $
5003.33 $
10003.20 $
Buy Now
LT3437HFE#PBF 193
17.26 $
254.82 $
1003.98 $
2503.78 $
5003.70 $
10003.55 $
Buy Now

Rochester Electronics

ProductStockPriceBuy
LT3437IDD#PBF 121
10003.02 $
5003.06 $
1003.09 $
253.12 $
13.15 $
Buy Now

Bristol Electronics

ProductStockPriceBuy
LT3437IFE#PBF 35
LT3437IDD#PBF 34
LT3437HFE#PBF 35

RS Components

ProductStockPriceBuy
LT3437EDD#PBF 40
12.29 GBP
24.13 GBP
106.08 GBP
204.58 GBP
504.33 GBP
Buy Now
LT3437EDD#PBF 80
106.08 GBP
204.58 GBP
504.33 GBP
Buy Now
LT3437EDD#PBF 0
12.24 GBP
2422.59 GBP
Buy Now
LT3437IFE#PBF 0
13.07 GBP
4753.37 GBP
Buy Now
LT3437IFE#PBF 67
13.13 GBP
55.03 GBP
255.70 GBP
505.29 GBP
1255.00 GBP
Buy Now
LT3437IFE#PBF 133
255.70 GBP
505.29 GBP
1255.00 GBP
Buy Now
LT3437EFE#PBF 0
12.83 GBP
Buy Now
LT3437EFE#PBF 0
102.83 GBP
254.49 GBP
504.19 GBP
Buy Now
LT3437EFE#PBF 0
14.24 GBP
54.02 GBP
102.83 GBP
254.49 GBP
504.19 GBP
Buy Now
LT3437IDD#PBF 0
13.29 GBP
3633.21 GBP
Buy Now
LT3437IDD#PBF 0
303.30 GBP
613.21 GBP
Buy Now
LT3437IDD#PBF 106
14.97 GBP
64.72 GBP
303.30 GBP
613.21 GBP
Buy Now
show stock=0hide stock=0

Available Distributors without stock: 3

Richardson RFPD

ProductStockPriceBuy
LT3437EDD#PBF 0
2423.03 $
5002.95 $
10002.88 $
50002.76 $
Buy Now
LT3437EFE#TRPBF 0
25003.09 $
50002.97 $
Buy Now
LT3437EDD#TRPBF 0
25002.99 $
50002.88 $
Buy Now
LT3437IFE#PBF 0
1903.70 $
5003.60 $
10003.50 $
50003.37 $
Buy Now
LT3437EFE#PBF 0
1903.10 $
5003.02 $
10002.94 $
50002.83 $
Buy Now
LT3437IDD#PBF 0
1213.64 $
5003.54 $
10003.45 $
50003.32 $
Buy Now
LT3437HFE#TRPBF 0
25003.91 $
50003.75 $
Buy Now
LT3437IFE#TRPBF 0
25003.66 $
50003.53 $
Buy Now
LT3437HFE#PBF 0
1904.04 $
5003.93 $
10003.83 $
50003.68 $
Buy Now
LT3437IDD#TRPBF 0
25003.57 $
50003.44 $
Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
LT3437IFE#PBF 0
5005.18 SGD
2505.30 SGD
1005.58 SGD
256.75 SGD
110.16 SGD
Buy Now
LT3437EFE#PBF 0
5004.35 SGD
2504.45 SGD
1004.68 SGD
255.66 SGD
18.52 SGD
Buy Now

Farnell element14

ProductStockPriceBuy
LT3437IFE#PBF 0
1002.19 GBP
502.20 GBP
252.21 GBP
102.22 GBP
14.27 GBP
Buy Now
LT3437EFE#PBF 0
5002.07 GBP
2502.13 GBP
1002.19 GBP
502.24 GBP
252.30 GBP
102.89 GBP
13.47 GBP
Buy Now
LT3437IDD#PBF 0
1002.33 GBP
252.65 GBP
14.10 GBP
Buy Now

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3437. Optional, compare LT3437 side-by-side with other Buck Converter via the Comparison function.

no alternatives found

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3437.

V-IN max. 60 V, I-OUT 0.4 A, V-OUT min. 1.25 V, Frequency typ. 200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404041470 47.0 0.6 0.6 987.00 4 x 4 x 1.2
74404042470 47.0 0.6 0.7 620.00 4 x 4 x 1.8
74404052470 47.0 0.8 1.0 521.00 5 x 5 x 2
744043390 39.0 0.8 0.5 215.00 4.8 x 4.8 x 3
744043470 47.0 0.8 0.5 250.00 4.8 x 4.8 x 3
744052470 47.0 0.8 0.7 530.00 5.8 x 5.8 x 2
744053470 47.0 0.8 0.7 220.00 5.8 x 5.8 x 3
744062470 47.0 0.7 0.6 260.00 6.8 x 6.8 x 2.5
74408941470 47.0 0.4 0.8 1,133.00 4.8 x 4.8 x 2.1
74408942470 47.0 0.7 1.0 515.00 4.8 x 4.8 x 3.1
74408942560 56.0 0.5 0.8 780.00 4.8 x 4.8 x 3.1
74408943560 56.0 0.7 0.9 418.00 4.8 x 4.8 x 4.1
744773139 39.0 0.8 0.9 418.00 4 x 4.5 x 3.5
744773147 47.0 0.7 0.8 523.00 4 x 4.5 x 3.5
744773156 56.0 0.6 0.8 714.00 4 x 4.5 x 3.5
744778147 47.0 0.9 1.0 315.00 7.3 x 7.3 x 3.4
744778156 56.0 0.8 0.9 322.00 7.3 x 7.3 x 3.4
7447785147 47.0 0.9 0.7 500.00 5.9 x 6.2 x 3.3
7447786147 47.0 1.4 0.8 260.00 5.9 x 6.2 x 5.1
7447789147 47.0 0.9 1.0 315.00 7.3 x 7.3 x 3.5
7447789156 56.0 0.8 0.9 335.00 7.3 x 7.3 x 3.5
784773139 39.0 0.8 0.9 418.00 4 x 4.5 x 3.5
784773147 47.0 0.7 0.8 523.00 4 x 4.5 x 3.5
784773156 56.0 0.6 0.8 714.00 4 x 4.5 x 3.5
784774147 47.0 0.9 1.0 260.00 5.2 x 5.8 x 4.85
784774156 56.0 0.8 0.9 298.00 5.2 x 5.8 x 4.85
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