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
findchips.com

Available Distributors with stock: 8

Chip One Stop (6)

ProductStockPriceBuy
LT3502AEDC#TRMPBF882
5002.73 USD
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LT3502AEMS#PBF40
14.32 USD
103.14 USD
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LT3502AIMS#PBF50
15.48 USD
103.98 USD
503.46 USD
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LT3502EDC#TRMPBF6
14.96 USD
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LT3502EDC#TRMPBF474
5002.73 USD
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LT3502EMS#PBF50
14.38 USD
103.18 USD
502.89 USD
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Conrad COM (2)

ProductStockPriceBuy
LT3502AIDC#TRMPBF3Buy Now
LT3502IDC#TRMPBF3Buy Now

Conrad UK (2)

ProductStockPriceBuy
LT3502AIDC#TRMPBF3Buy Now
LT3502IDC#TRMPBF3Buy Now

Digi-Key (15)

ProductStockPriceBuy
LT3502AEDC#TRMPBF1500
5002.34 USD
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LT3502AEDC#TRMPBF1979
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
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LT3502AEDC#TRMPBF1979
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
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LT3502AIDC#TRMPBF500
5002.81 USD
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LT3502AIDC#TRMPBF977
15.48 USD
254.89 USD
1003.37 USD
2503.09 USD
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LT3502AIDC#TRMPBF977
15.48 USD
254.89 USD
1003.37 USD
2503.09 USD
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LT3502IDC#TRMPBF500
5002.81 USD
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LT3502IDC#TRMPBF971
15.48 USD
254.89 USD
1003.37 USD
2503.09 USD
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LT3502IDC#TRMPBF971
15.48 USD
254.89 USD
1003.37 USD
2503.09 USD
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LT3502AIMS#PBF1066
15.36 USD
253.58 USD
1003.05 USD
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LT3502IMS#PBF361
15.36 USD
253.58 USD
1003.05 USD
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LT3502AEMS#TRPBF0
25002.64 USD
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LT3502AEMS#TRPBF3067
15.14 USD
254.59 USD
1003.17 USD
2502.91 USD
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LT3502AEMS#TRPBF3067
15.14 USD
254.59 USD
1003.17 USD
2502.91 USD
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DC1221B4
176.50 USD
10075.38 USD
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DC1089B3
1102.10 USD
2576.88 USD
10075.38 USD
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LT3502EDC#TRMPBF0
5002.34 USD
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LT3502EDC#TRMPBF0
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
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LT3502EDC#TRMPBF0
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
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LT3502AEMS#PBF0
14.46 USD
252.99 USD
1002.54 USD
Buy Now
LT3502EMS#PBF0
14.46 USD
252.99 USD
1002.54 USD
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LT3502EMS#TRPBF0
25002.64 USD
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LT3502EMS#TRPBF0
15.14 USD
254.59 USD
1003.17 USD
2502.91 USD
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LT3502EMS#TRPBF0
15.14 USD
254.59 USD
1003.17 USD
2502.91 USD
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LT3502AEDC#TRPBF0
25002.34 USD
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Element14 (1)

ProductStockPriceBuy
LT3502AEDC#PBF0Buy Now
LT3502AEMS#PBF0Buy Now
LT3502AIDC#TRMPBF0Buy Now
LT3502AIDC#TRMPBF17Buy Now
LT3502AIMS#PBF0Buy Now
LT3502EDC#PBF0Buy Now
LT3502EMS#PBF0Buy Now

Mouser Electronics (5)

ProductStockPriceBuy
LT3502AEMS#PBF304
14.48 USD
104.11 USD
253.00 USD
1002.55 USD
Buy Now
LT3502AIMS#PBF458
15.38 USD
104.93 USD
253.59 USD
1003.06 USD
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LT3502IMS#PBF333
15.38 USD
104.93 USD
253.59 USD
1003.06 USD
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LT3502IDC#TRMPBF186
15.51 USD
105.11 USD
254.91 USD
1003.37 USD
2503.10 USD
5002.81 USD
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LT3502EMS#PBF19
14.48 USD
104.11 USD
253.00 USD
1002.55 USD
Buy Now
LT3502AIDC#TRMPBF0
15.51 USD
105.11 USD
254.91 USD
1003.37 USD
2503.10 USD
5002.81 USD
Buy Now
LT3502EDC#TRMPBF0
14.61 USD
104.28 USD
254.12 USD
1002.81 USD
2502.57 USD
5002.35 USD
Buy Now
LT3502AEDC#TRMPBF0
14.61 USD
104.28 USD
254.12 USD
1002.81 USD
2502.57 USD
5002.35 USD
Buy Now
LT3502EDC#TRPBF0
25002.35 USD
Buy Now
LT3502IDC#TRPBF0
25002.81 USD
Buy Now
LT3502AIMS#TRPBF0
25003.16 USD
Buy Now
LT3502EMS#TRPBF0
25002.64 USD
Buy Now
LT3502AEMS#TRPBF0
25002.64 USD
Buy Now
LT3502AEDC#TRPBF0
25002.35 USD
Buy Now
LT3502AIDC#TRPBF0
25002.81 USD
Buy Now
LT3502IMS#TRPBF0
25003.16 USD
Buy Now

RS Components (5)

ProductStockPriceBuy
LT3502AEDC#TRMPBF465Buy Now
LT3502AEMS#PBF22500Buy Now
LT3502AIDC#TRMPBF370Buy Now
LT3502EMS#PBF51Buy Now
LT3502EMS#PBF147Buy Now

Reichelt Elektronik (1)

ProductStockPriceBuy
LT3502AIDC#TRMPBF1Buy Now

Available Distributors without stock: 2

Distrelec (0)

ProductStockPriceBuy
LT3502AIDC#TRMPBF0Buy Now
LT3502IMS#PBF0Buy Now

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 10

Arrow Electronics

ProductStockPriceBuy
LT3502IDC#TRPBF 1271
1002.75 $
13.34 $
Buy Now
LT3502AEDC#TRMPBF 262
1002.29 $
12.79 $
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Digi-Key

ProductStockPriceBuy
LT3502AEMS#TRPBF 3067
2502.48 €
1002.71 €
253.92 €
14.39 €
Buy Now
LT3502AEMS#TRPBF 3067
2502.48 €
1002.71 €
253.92 €
14.39 €
Buy Now
LT3502AEDC#TRMPBF 1979
2502.19 €
1002.39 €
253.50 €
13.92 €
Buy Now
LT3502AEDC#TRMPBF 1979
2502.19 €
1002.39 €
253.50 €
13.92 €
Buy Now
LT3502AEDC#TRMPBF 1500
5001.99 €
Buy Now
LT3502AIMS#PBF 1066
1002.60 €
253.06 €
14.57 €
Buy Now
LT3502AIDC#TRMPBF 977
2502.63 €
1002.87 €
254.18 €
14.68 €
Buy Now
LT3502AIDC#TRMPBF 977
2502.63 €
1002.87 €
254.18 €
14.68 €
Buy Now
LT3502IDC#TRMPBF 971
2502.63 €
1002.87 €
254.18 €
14.68 €
Buy Now
LT3502IDC#TRMPBF 971
2502.63 €
1002.87 €
254.18 €
14.68 €
Buy Now
LT3502AIDC#TRMPBF 500
5002.39 €
Buy Now
LT3502IDC#TRMPBF 500
5002.39 €
Buy Now
LT3502IMS#PBF 361
1002.60 €
253.06 €
14.57 €
Buy Now
DC1221B 4
10064.33 €
165.29 €
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LT3502AEMS#TRPBF 0
25002.25 €
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show stock=0hide stock=0

Verical

ProductStockPriceBuy
LT3502IDC#TRPBF 1271
1002.75 $
143.34 $
Buy Now
LT3502AEDC#TRMPBF 262
1002.29 $
162.79 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT3502AEMS#PBF 329
14.47 $
104.09 $
252.99 $
1002.54 $
Buy Now
LT3502AIMS#PBF 458
15.37 $
104.92 $
253.58 $
1003.05 $
Buy Now
LT3502IMS#PBF 333
15.37 $
104.92 $
253.58 $
1003.05 $
Buy Now
LT3502IDC#TRMPBF 186
15.49 $
105.09 $
254.89 $
1003.37 $
2503.09 $
5002.80 $
Buy Now
LT3502EMS#PBF 19
14.47 $
104.09 $
252.99 $
1002.54 $
Buy Now
LT3502AIDC#TRMPBF 0
15.49 $
105.09 $
254.89 $
1003.37 $
2503.09 $
5002.80 $
Buy Now
LT3502EDC#TRMPBF 0
14.60 $
104.27 $
254.10 $
1002.80 $
2502.57 $
5002.34 $
Buy Now
LT3502AEDC#TRMPBF 0
14.60 $
104.27 $
254.10 $
1002.80 $
2502.57 $
5002.34 $
Buy Now
LT3502EDC#TRPBF 0
25002.34 $
Buy Now
LT3502IDC#TRPBF 0
25002.80 $
Buy Now
LT3502AIMS#TRPBF 0
25003.15 $
Buy Now
LT3502EMS#TRPBF 0
25002.64 $
Buy Now
LT3502AEMS#TRPBF 0
25002.64 $
Buy Now
LT3502AEDC#TRPBF 0
25002.34 $
Buy Now
LT3502AIDC#TRPBF 0
25002.80 $
Buy Now
show stock=0hide stock=0

Quest Components

ProductStockPriceBuy
LT3502AIDC#TRMPBF 25
73.00 $
34.00 $
16.00 $
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LT3502AIDC#TRPBF 60
337.18 $
107.77 $
111.65 $
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LT3502EMS#PBF 174
643.70 $
184.00 $
16.00 $
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ComS.I.T.

ProductStockPriceBuy
LT3502EDCTRPBF 305
LT3502EMSTRMPBF 80

element14 Asia-Pacific

ProductStockPriceBuy
LT3502AIDC#TRMPBF 17
16.31 $
Buy Now
LT3502AIDC#TRMPBF 17
16.31 $
Buy Now

Chip1Stop

ProductStockPriceBuy
LT3502EMS#PBF 50
502.89 $
103.18 $
14.38 $
Buy Now
LT3502EDC#TRMPBF 474
5002.73 $
Buy Now
LT3502AEMS#PBF 40
103.14 $
14.32 $
Buy Now
LT3502AEDC#TRMPBF 882
5002.73 $
Buy Now
LT3502AIMS#PBF 50
503.46 $
103.98 $
15.48 $
Buy Now
LT3502EDC#TRMPBF 6
14.96 $
Buy Now

New Advantage Corporation

ProductStockPriceBuy
LT3502AEDC#TRPBF 1800
453.73 $
18003.45 $
Buy Now

RS Components

ProductStockPriceBuy
LT3502EMS#PBF 51
15.91 GBP
104.87 GBP
253.84 GBP
Buy Now
LT3502EMS#PBF 147
104.87 GBP
253.84 GBP
Buy Now
LT3502AEMS#PBF 22500
502.96 GBP
2502.66 GBP
5002.43 GBP
Buy Now
LT3502AIDC#TRMPBF 370
102.54 GBP
Buy Now
LT3502AEDC#TRMPBF 465
54.40 GBP
253.96 GBP
1253.51 GBP
2503.07 GBP
Buy Now

Available Distributors without stock: 1

Farnell element14

ProductStockPriceBuy
LT3502AIDC#TRMPBF 0
14.38 GBP
103.94 GBP
253.52 GBP
502.97 GBP
1002.42 GBP
Buy Now

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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