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: 9

Arrow Electronics

ProductStockPriceBuy
LT3437IFE#PBF 2741
2503.09 $
1003.14 $
253.81 $
15.36 $
Buy Now
LT3437IDD#TRPBF 2137
25003.33 $
5003.38 $
2503.46 $
1003.64 $
16.64 $
Buy Now
LT3437EFE#PBF 657
10002.59 $
5002.70 $
2502.76 $
1002.91 $
253.52 $
15.30 $
Buy Now
LT3437EDD#PBF 616
10002.54 $
5002.63 $
2502.70 $
1002.84 $
253.43 $
15.18 $
Buy Now
LT3437IFE#PBF 209
1003.39 $
253.81 $
15.36 $
Buy Now
LT3437HFE#PBF 85
2503.70 $
1003.78 $
254.58 $
16.90 $
Buy Now
LT3437HFE#PBF 70
10003.37 $
5003.52 $
2503.59 $
1003.78 $
254.58 $
16.90 $
Buy Now
LT3437IFE#TR 0
1000009.05 $
500009.19 $
300009.32 $
100009.47 $
50009.61 $
25009.76 $
Buy Now
LT3437HFE#TRPBF 0
25003.63 $
Buy Now
LT3437IFE#TRPBF 0
25003.34 $
Buy Now
LT3437IFE#PBF 0
2503.04 $
1903.14 $
Buy Now
LT3437IDD#TRPBF 0
25003.29 $
Buy Now
LT3437EDD#TRPBF 0
25002.75 $
Buy Now
LT3437IDD#PBF 0
10003.04 $
5003.16 $
2503.24 $
1213.41 $
Buy Now
LT3437EFE#TRPBF 0
25002.84 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT3437EFE#PBF 3953
5002.55 €
2502.61 €
1002.75 €
253.33 €
15.00 €
Buy Now
LT3437IDD#PBF 2532
5003.00 €
2503.07 €
1003.23 €
253.90 €
15.87 €
Buy Now
LT3437EFE#TRPBF 2500
25002.68 €
Buy Now
LT3437EFE#TRPBF 2500
5002.76 €
2502.83 €
1002.97 €
15.42 €
Buy Now
LT3437EFE#TRPBF 2500
5002.76 €
2502.83 €
1002.97 €
15.42 €
Buy Now
LT3437IDD#TRPBF 2500
25003.10 €
Buy Now
LT3437IDD#TRPBF 2500
5003.19 €
2503.27 €
1003.44 €
16.27 €
Buy Now
LT3437IDD#TRPBF 2500
5003.19 €
2503.27 €
1003.44 €
16.27 €
Buy Now
LT3437EDD#PBF 1777
5002.50 €
2502.55 €
1002.69 €
253.25 €
14.90 €
Buy Now
LT3437IFE#PBF 1671
5003.04 €
2503.11 €
1003.28 €
253.96 €
15.97 €
Buy Now
LT3437HFE#PBF 722
5003.32 €
2503.40 €
1003.58 €
254.33 €
16.52 €
Buy Now
DC1232A 1
2593.28 €
1121.49 €
Buy Now
LT3437EDD#TRPBF 0
25002.60 €
Buy Now
LT3437IFE#TRPBF 0
25003.18 €
Buy Now
LT3437HFE#TRPBF 0
25003.39 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LT3437IFE#PBF 2741
2503.09 $
1003.14 $
253.81 $
25.36 $
Buy Now
LT3437EFE#PBF 657
10002.59 $
5002.70 $
2502.76 $
1002.91 $
253.52 $
35.30 $
Buy Now
LT3437EDD#PBF 448
10002.54 $
5002.63 $
2502.70 $
1002.84 $
253.43 $
35.18 $
Buy Now
LT3437IFE#PBF 209
1003.39 $
253.81 $
25.36 $
Buy Now
LT3437HFE#PBF 85
2503.70 $
1003.78 $
254.58 $
26.90 $
Buy Now
LT3437HFE#PBF 70
10003.37 $
5003.52 $
2503.59 $
1003.78 $
254.58 $
26.90 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT3437EFE#PBF 1389
15.58 $
253.70 $
1003.06 $
2502.90 $
5002.84 $
10002.73 $
Buy Now
LT3437IDD#PBF 785
16.55 $
254.34 $
1003.59 $
2503.41 $
5003.33 $
10003.20 $
Buy Now
LT3437EDD#PBF 2604
15.45 $
253.61 $
1002.99 $
2502.84 $
5002.77 $
10002.67 $
Buy Now
LT3437IFE#PBF 430
16.65 $
254.41 $
1003.64 $
2503.46 $
5003.38 $
10003.25 $
Buy Now
LT3437HFE#PBF 183
17.26 $
254.82 $
1003.98 $
2503.78 $
5003.70 $
10003.55 $
Buy Now
LT3437EDD#TRPBF 0
25002.78 $
Buy Now
LT3437EFE#TRPBF 0
25002.87 $
Buy Now
LT3437IDD#TRPBF 0
25003.32 $
Buy Now
LT3437IFE#TRPBF 0
25003.40 $
Buy Now
LT3437HFE#TRPBF 0
25003.63 $
Buy Now
LT3437EDD 0 Buy Now
LT3437EFE 0 Buy Now
LT3437IDD 0 Buy Now
LT3437IFE 0 Buy Now
LT3437IDD#TR 0 Buy Now
show stock=0hide stock=0

Rochester Electronics

ProductStockPriceBuy
LT3437IDD#PBF 121
10003.38 $
5003.56 $
1003.70 $
253.86 $
14.16 $
Buy Now

Bristol Electronics

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

RS Components

ProductStockPriceBuy
LT3437EDD#PBF 90
202.13 GBP
Buy Now
LT3437IFE#PBF 141
102.49 GBP
Buy Now
LT3437IDD#PBF 118
613.57 GBP
303.66 GBP
63.75 GBP
Buy Now
LT3437EFE#PBF 12
483.00 GBP
203.29 GBP
Buy Now

Chip 1 Exchange

ProductStockPriceBuy
LT3437EFE#PBF 7

Farnell element14

ProductStockPriceBuy
LT3437IFE#PBF 0
1002.19 GBP
502.20 GBP
252.21 GBP
102.22 GBP
14.27 GBP
Buy Now
LT3437IDD#PBF 0
1002.33 GBP
252.65 GBP
14.10 GBP
Buy Now
LT3437EFE#PBF 4
5002.24 GBP
2502.28 GBP
1002.40 GBP
502.66 GBP
252.90 GBP
104.38 GBP
14.85 GBP
Buy Now
show stock=0hide stock=0

Available Distributors without stock: 2

Richardson RFPD

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

element14 Asia-Pacific

ProductStockPriceBuy
LT3437IFE#PBF 0
5005.08 SGD
2505.20 SGD
1005.47 SGD
256.62 SGD
19.96 SGD
Buy Now
LT3437EFE#PBF 0
5004.26 SGD
2504.36 SGD
1004.59 SGD
255.55 SGD
18.35 SGD
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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