LT3437 Buck Converter overview

Description

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Sub-Category

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: 6

ARROW-NAC (5)

ProductStockPriceBuy
LT3437EFE#PBF1352
13.29 USD
1002.71 USD
Buy Now
LT3437EDD#PBF2060
13.21 USD
1002.65 USD
Buy Now
LT3437IFE#PBF1497
13.93 USD
1003.24 USD
Buy Now
LT3437HFE#PBF424
14.29 USD
1003.53 USD
Buy Now
LT3437IDD#PBF888
13.86 USD
1003.18 USD
Buy Now

Chip-One-Stop (7)

ProductStockPriceBuy
LT3437EDD#PBF1613
15.08 USD
104.27 USD
254.22 USD
504.03 USD
1003.93 USD
2003.75 USD
Buy Now
LT3437EFE#PBF1193
15.20 USD
104.38 USD
254.33 USD
504.13 USD
1004.03 USD
2003.84 USD
Buy Now
LT3437HFE#PBF460
15.10 USD
104.91 USD
503.52 USD
1003.47 USD
2003.20 USD
Buy Now
LT3437HFE#PBF460
15.10 USD
104.91 USD
503.52 USD
1003.47 USD
2003.20 USD
Buy Now
LT3437IDD#PBF1209
15.89 USD
104.96 USD
254.90 USD
504.68 USD
1004.56 USD
2004.35 USD
Buy Now
LT3437IDD#TRPBF20000
25003.58 USD
Buy Now
LT3437IFE#PBF1063
16.49 USD
105.46 USD
255.40 USD
505.15 USD
1005.03 USD
2004.79 USD
Buy Now

DIGI-KEY (4)

ProductStockPriceBuy
LT3437EFE#PBF1294
14.65 USD
253.29 USD
1002.71 USD
Buy Now
LT3437IDD#PBF947
15.40 USD
253.86 USD
1003.18 USD
Buy Now
LT3437EDD#PBF563
14.52 USD
253.21 USD
1002.65 USD
Buy Now
LT3437HFE#PBF567
16.03 USD
254.29 USD
1003.53 USD
Buy Now
LT3437IFE#PBF0
15.53 USD
253.93 USD
1003.24 USD
Buy Now
LT3437EDD#TRPBF0
25002.75 USD
Buy Now
LT3437EFE#TRPBF0
25002.81 USD
Buy Now
LT3437IDD#TRPBF0
25003.28 USD
Buy Now
LT3437IFE#TRPBF0
25003.34 USD
Buy Now
LT3437HFE#TRPBF0
25003.63 USD
Buy Now

Element14 (3)

ProductStockPriceBuy
LT3437EFE#PBF294
17.43 USD
255.26 USD
1004.33 USD
Buy Now
LT3437IDD#PBF345
18.64 USD
256.17 USD
1005.09 USD
Buy Now
LT3437IFE#PBF161
18.84 USD
256.28 USD
1005.18 USD
Buy Now

FARNELL-ELEMENT14 (3)

ProductStockPriceBuy
LT3437EFE#PBF321Buy Now
LT3437IDD#PBF345Buy Now
LT3437IFE#PBF175Buy Now

RS-COMPONENTS (4)

ProductStockPriceBuy
LT3437EDD#PBF13Buy Now
LT3437EFE#PBF60Buy Now
LT3437IDD#PBF71Buy Now
LT3437IFE#PBF185Buy Now

Available Distributors without stock: 1

NEWARK (0)

ProductStockPriceBuy
LT3437EDD#PBF0
14.51 USD
253.08 USD
1002.65 USD
Buy Now
LT3437EDD#TRPBF0
14.66 USD
25003.34 USD
Buy Now
LT3437EFE#PBF0
14.64 USD
253.15 USD
1002.71 USD
Buy Now
LT3437EFE#TRPBF0
14.77 USD
25003.43 USD
Buy Now
LT3437HFE#TRPBF0
16.22 USD
25004.47 USD
Buy Now
LT3437IDD#PBF0
13.86 USD
1003.18 USD
Buy Now
LT3437IDD#TRPBF0
15.60 USD
25004.02 USD
Buy Now
LT3437IFE#PBF0
15.51 USD
253.76 USD
1003.24 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LT3437 stock available

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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