LT3502 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LT3502 is a 40.00 V non-sync Buck Converter from with 0.50 A output current. The maximum 40.00 V input voltage can be regulated down into a 0.80 V to 20.00 V output voltage.

It requires are a typical inductor size of 6.80 µH, a typical external component count of 7 and achieves a peak efficiency of 86 %. Further LT3502 characteristics are a fixed 1100 kHz switching frequency and 2 available package option(s): MSOP-10 DFN-8 .

For the LT3502 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. 3.00 V
V-IN max. 40.00 V
I-OUT? 0.50 A
V-OUT min. 0.80 V
V-OUT max. 20.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 1100 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK no
Quiescent current max. 2000 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 6.80 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 86 %
Component count min. 7
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT
MSOP MSOP-10
QFN/DFN DFN-8
SO/SOIC
SOP
DIP
TO
DDPAK

LT3502 Datasheet

Link to the most up-to-date LT3502 datasheet and the product page for EVM, tools and support information.

LT3502

LT3502 Sample stock and distributor price breaks

LT3502 prices and online available distributors.

OEMSecrets.com
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Available Distributors with stock: 0

no online Distributor with LT3502 stock available

Available Distributors with stock: 9

Arrow Electronics

ProductStockPriceBuy
LT3502EDC#TRMPBF 838
5002.38 $
2502.46 $
1002.59 $
253.14 $
14.73 $
Buy Now
LT3502EDC#TRPBF 650
25002.32 $
5002.35 $
2502.40 $
1002.53 $
253.06 $
14.62 $
Buy Now
LT3502AIDC#TRMPBF 500
15002.65 $
5002.69 $
Buy Now
LT3502IDC#TRMPBF 485
5002.84 $
2502.95 $
1003.10 $
253.75 $
15.65 $
Buy Now
LT3502AIMS#PBF 445
10002.77 $
5002.88 $
2502.95 $
1002.99 $
253.75 $
15.66 $
Buy Now
LT3502AEDC#TRPBF 335
25002.32 $
5002.35 $
2502.40 $
1002.53 $
253.06 $
14.62 $
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LT3502AIDC#TRMPBF 307
5002.84 $
2502.95 $
1003.10 $
253.75 $
15.65 $
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LT3502AEDC#TRMPBF 190
1002.38 $
252.65 $
13.88 $
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LT3502EMS#PBF 5
10002.31 $
5002.40 $
2502.45 $
1002.49 $
253.13 $
14.72 $
Buy Now
LT3502EDC#TRPBF 0
50002.15 $
25002.19 $
Buy Now
LT3502AEDC#TRPBF 0
50002.15 $
25002.19 $
Buy Now
LT3502AEDC#TRMPBF 0
5002.21 $
Buy Now
LT3502IDC#TRMPBF 0
15002.64 $
5002.69 $
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LT3502EDC#TRMPBF 0
15002.21 $
5002.25 $
Buy Now
LT3502AIDC#TRPBF 0
25002.82 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT3502AIDC#TRMPBF 13491
1002.93 €
253.54 €
15.34 €
Buy Now
LT3502AIDC#TRMPBF 13491
1002.93 €
253.54 €
15.34 €
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LT3502AIDC#TRMPBF 13000
5002.65 €
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LT3502EMS#TRPBF 6956
1002.58 €
253.12 €
14.69 €
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LT3502EMS#TRPBF 6956
1002.58 €
253.12 €
14.69 €
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LT3502AEDC#TRMPBF 5789
1002.46 €
252.98 €
14.48 €
Buy Now
LT3502AEDC#TRMPBF 5789
1002.46 €
252.98 €
14.48 €
Buy Now
LT3502AEDC#TRMPBF 5500
5002.22 €
Buy Now
LT3502EDC#TRMPBF 5459
1002.46 €
252.98 €
14.48 €
Buy Now
LT3502EDC#TRMPBF 5459
1002.46 €
252.98 €
14.48 €
Buy Now
LT3502EDC#TRMPBF 5000
5002.22 €
Buy Now
LT3502EMS#TRPBF 5000
25002.34 €
Buy Now
LT3502IDC#TRMPBF 1887
1002.93 €
253.54 €
15.34 €
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LT3502IDC#TRMPBF 1887
1002.93 €
253.54 €
15.34 €
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LT3502IDC#TRMPBF 1500
5002.65 €
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Verical

ProductStockPriceBuy
LT3502AEDC#TRMPBF 9000
5002.33 $
Buy Now
LT3502AIDC#TRMPBF 4000
5002.78 $
Buy Now
LT3502EDC#TRMPBF 2500
5002.33 $
Buy Now
LT3502AIDC#TRPBF 2500
25003.46 $
Buy Now
LT3502EDC#TRMPBF 838
5002.38 $
2502.46 $
1002.59 $
253.14 $
34.73 $
Buy Now
LT3502EDC#TRPBF 650
25002.32 $
5002.35 $
2502.40 $
1002.53 $
253.06 $
34.62 $
Buy Now
LT3502AIDC#TRMPBF 500
15002.65 $
5002.69 $
Buy Now
LT3502IDC#TRMPBF 485
5002.84 $
2502.95 $
1003.10 $
253.75 $
35.65 $
Buy Now
LT3502AIMS#PBF 445
10002.77 $
5002.88 $
2502.95 $
1002.99 $
253.75 $
35.66 $
Buy Now
LT3502AEDC#TRPBF 335
25002.32 $
5002.35 $
2502.40 $
1002.53 $
253.06 $
34.62 $
Buy Now
LT3502AIDC#TRMPBF 307
5002.84 $
2502.95 $
1003.10 $
253.75 $
35.65 $
Buy Now
LT3502AIMS#PBF 192
2502.87 $
1002.94 $
253.56 $
45.36 $
Buy Now
LT3502AEDC#TRMPBF 190
1002.38 $
252.65 $
33.88 $
Buy Now
LT3502EMS#PBF 150
2502.39 $
1002.45 $
252.96 $
44.47 $
Buy Now
LT3502EMS#PBF 5
10002.31 $
5002.40 $
2502.45 $
1002.49 $
253.13 $
34.72 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT3502EDC#TRMPBF 5661
14.98 $
253.30 $
1002.73 $
2502.59 $
5002.37 $
15002.31 $
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LT3502AEDC#TRMPBF 3254
14.98 $
253.30 $
1002.73 $
2502.59 $
5002.37 $
15002.31 $
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LT3502AIDC#TRMPBF 4321
15.95 $
253.95 $
1003.26 $
2503.10 $
5002.83 $
15002.76 $
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LT3502EDC#TRPBF 2449
14.86 $
253.22 $
1002.66 $
2502.53 $
5002.47 $
25002.30 $
Buy Now
LT3502AEMS#PBF 4770
14.97 $
253.29 $
1002.72 $
2502.58 $
5002.53 $
10002.43 $
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LT3502EMS#PBF 1030
14.97 $
253.29 $
1002.72 $
2502.58 $
5002.53 $
10002.43 $
Buy Now
LT3502AIMS#PBF 1230
15.96 $
253.95 $
1003.27 $
2503.10 $
5003.03 $
10002.92 $
Buy Now
LT3502IDC#TRMPBF 1541
15.95 $
253.95 $
1003.26 $
2503.10 $
5002.83 $
15002.76 $
Buy Now
LT3502EMS#TRPBF 2215
15.25 $
253.48 $
1002.87 $
2502.73 $
5002.67 $
25002.49 $
Buy Now
LT3502AEDC#TRPBF 2468
14.86 $
253.22 $
1002.66 $
2502.53 $
5002.47 $
25002.30 $
Buy Now
LT3502IMS#PBF 234
15.96 $
253.95 $
1003.27 $
2503.10 $
5003.03 $
10002.92 $
Buy Now

Quest Components

ProductStockPriceBuy
LT3502AEDC#TRPBF 9269
4324.22 $
1934.64 $
18.43 $
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LT3502AIDC#TRMPBF 15
73.00 $
34.00 $
16.00 $
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LT3502AIDC#TRMPBF 261
643.70 $
184.00 $
16.00 $
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LT3502AIDC#TRPBF 60
337.18 $
107.77 $
111.65 $
Buy Now
LT3502EMS#PBF 39
184.00 $
64.40 $
16.00 $
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RS Components

ProductStockPriceBuy
LT3502AEDC#TRMPBF 0
5002.63 GBP
15002.42 GBP
Buy Now
LT3502AEDC#TRMPBF 252
14.01 GBP
253.64 GBP
1003.27 GBP
5002.90 GBP
10002.54 GBP
Buy Now
LT3502AEDC#TRMPBF 252
253.64 GBP
1003.27 GBP
5002.90 GBP
10002.54 GBP
Buy Now
LT3502EMS#PBF 35
14.00 GBP
103.30 GBP
502.60 GBP
1002.15 GBP
5002.00 GBP
Buy Now
LT3502EMS#PBF 178
103.30 GBP
502.60 GBP
1002.15 GBP
5002.00 GBP
Buy Now
LT3502EMS#PBF 0
12.66 GBP
2502.56 GBP
5002.50 GBP
Buy Now
LT3502AIDC#TRMPBF 0
12.74 GBP
Buy Now
LT3502AIDC#TRMPBF 1422
254.17 GBP
1002.50 GBP
5002.36 GBP
10002.20 GBP
Buy Now
LT3502AIDC#TRMPBF 1422
14.79 GBP
254.17 GBP
1002.50 GBP
5002.36 GBP
10002.20 GBP
Buy Now
LT3502AEMS#PBF 0
12.66 GBP
2502.42 GBP
5002.36 GBP
Buy Now
LT3502AEMS#PBF 538
104.52 GBP
254.20 GBP
503.92 GBP
Buy Now
LT3502AEMS#PBF 45
14.00 GBP
52.66 GBP
104.52 GBP
254.20 GBP
503.92 GBP
Buy Now
LT3502EDC#TRMPBF 0
5002.62 GBP
15002.41 GBP
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LT3502EDC#TRMPBF 296
14.01 GBP
103.71 GBP
502.60 GBP
1002.43 GBP
2502.37 GBP
Buy Now
LT3502EDC#TRMPBF 592
103.71 GBP
502.60 GBP
1002.43 GBP
2502.37 GBP
Buy Now
show stock=0hide stock=0

ComS.I.T.

ProductStockPriceBuy
LT3502EMSTRMPBF 80
LT3502EDCTRPBF 305

Chip1Stop

ProductStockPriceBuy
LT3502EMS#PBF 175
502.60 $
102.68 $
12.92 $
Buy Now
LT3502AIDC#TRMPBF 1358
10002.62 $
5002.69 $
2003.03 $
503.23 $
104.29 $
15.06 $
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LT3502AIMS#PBF 10
103.09 $
13.11 $
Buy Now
LT3502EDC#TRMPBF 1071
10002.44 $
5002.62 $
1002.95 $
503.19 $
103.94 $
16.17 $
Buy Now
LT3502AEDC#TRMPBF 775
5002.54 $
2003.00 $
503.20 $
104.25 $
15.01 $
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IChunt

ProductStockPriceBuy
LT3502AEDC#TRMPBF 6824
139.64 CNY
2526.32 CNY
10021.76 CNY
Buy Now
LT3502EMS#PBF 6553
139.48 CNY
2526.23 CNY
10021.69 CNY
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LT3502AIDC#TRMPBF 13493
147.35 CNY
2531.45 CNY
10026.00 CNY
Buy Now
LT3502IDC#TRMPBF 1887
147.35 CNY
2531.45 CNY
10026.00 CNY
Buy Now
LT3502AEMS#PBF 29186
139.48 CNY
2526.23 CNY
10021.69 CNY
Buy Now
LT3502AIDC#TRPBF 2500
250024.75 CNY
Buy Now
LT3502EDC#TRMPBF 5459
139.64 CNY
2526.32 CNY
10021.76 CNY
Buy Now
LT3502EDC#TRMPBF 5000
50016.67 CNY
Buy Now
LT3502IMS#PBF 75
147.43 CNY
2531.47 CNY
10026.02 CNY
Buy Now

Available Distributors without stock: 2

element14 Asia-Pacific

ProductStockPriceBuy
LT3502AEDC#PBF 0
1004.77 SGD
255.29 SGD
15.89 SGD
Buy Now
LT3502AEMS#PBF 0
5003.88 SGD
2503.96 SGD
1004.17 SGD
255.04 SGD
17.59 SGD
Buy Now
LT3502AIDC#TRMPBF 0
2504.75 SGD
1005.00 SGD
256.05 SGD
19.10 SGD
Buy Now
LT3502AIDC#TRMPBF 0
2504.75 SGD
1005.00 SGD
256.05 SGD
19.10 SGD
Buy Now
LT3502AIMS#PBF 0
5004.65 SGD
2504.75 SGD
1005.01 SGD
256.05 SGD
19.11 SGD
Buy Now
LT3502EDC#PBF 0
1004.77 SGD
255.29 SGD
15.89 SGD
Buy Now
LT3502EMS#PBF 0
5003.88 SGD
2503.96 SGD
1004.17 SGD
255.04 SGD
17.59 SGD
Buy Now

Farnell element14

ProductStockPriceBuy
LT3502AEDC#PBF 0
1001.87 GBP
252.65 GBP
13.74 GBP
Buy Now
LT3502AEMS#PBF 0
1002.03 GBP
252.26 GBP
13.76 GBP
Buy Now
LT3502AIMS#PBF 0
5002.15 GBP
2502.16 GBP
1002.19 GBP
502.38 GBP
252.57 GBP
103.85 GBP
14.28 GBP
Buy Now
LT3502EDC#PBF 0
1001.87 GBP
252.65 GBP
13.73 GBP
Buy Now
LT3502AIDC#TRMPBF 0
5002.12 GBP
2502.34 GBP
1002.55 GBP
503.13 GBP
253.71 GBP
103.92 GBP
14.60 GBP
Buy Now
LT3502AIDC#TRMPBF 0
5002.12 GBP
2502.34 GBP
1002.55 GBP
503.13 GBP
253.71 GBP
103.92 GBP
14.60 GBP
Buy Now
LT3502EMS#PBF 0
10001.81 GBP
5001.87 GBP
2501.93 GBP
1001.98 GBP
502.04 GBP
252.10 GBP
103.14 GBP
13.51 GBP
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List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3502. Optional, compare LT3502 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT3502A LT3502A product overviewLT3502A product overview Linear Technology DFN-8, MSOP-10
0% LMR14206 LMR14206 product overviewLMR14206 product overview Texas Instruments SOT23-6
50% LT3437 LT3437 product overviewLT3437 product overview Linear Technology TSSOP-16, DFN-10
50% LM2597 LM2597 product overviewLM2597 product overview Texas Instruments PDIP-8, SOIC-8
50% LM2597HV LM2597HV product overviewLM2597HV product overview Texas Instruments PDIP-8, SOIC-8
50% LM2671 LM2671 product overviewLM2671 product overview Texas Instruments PDIP-8, SOIC-8, WSON-16
50% LMR14203 LMR14203 product overviewLMR14203 product overview Texas Instruments SOT23-6

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3502.

V-IN max. 40 V, I-OUT 0.5 A, V-OUT min. 0.8 V, Frequency typ. 1100 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744028004 4.7 0.9 0.7 265.00 2.8 x 2.8 x 1.2
744029004 4.7 1.0 0.8 170.00 2.8 x 2.8 x 1.5
744031003 3.6 1.4 1.1 66.00 3.8 x 3.8 x 1.8
744031004 4.7 1.2 0.9 90.00 3.8 x 3.8 x 1.8
7440320039 3.9 0.5 1.4 200.00 3.2 x 2.5 x 2.3
74404024047 4.7 1.1 1.2 175.00 2.5 x 2 x 1.2
74404032047 4.7 1.3 1.2 96.00 3 x 3 x 1.5
744042005 5.6 1.6 1.4 80.00 4.8 x 4.8 x 2
744043005 5.6 1.4 1.3 70.00 4.8 x 4.8 x 3
7440680056 5.6 1.5 1.4 110.00 8 x 8 x 1.2
74479888247 4.7 1.0 0.7 380.00 2.5 x 2 x 1
74479889247 4.7 0.9 0.9 400.00 2.5 x 2 x 1.2
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