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: 9

Chip One Stop (7)

ProductStockPriceBuy
LT3502AEDC#PBF51
15.07 USD
103.29 USD
502.54 USD
Buy Now
LT3502AEDC#TRMPBF454
14.18 USD
102.83 USD
502.47 USD
1002.22 USD
2002.17 USD
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LT3502AEDC#TRMPBF882
5002.73 USD
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LT3502AEMS#PBF40
14.32 USD
103.14 USD
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LT3502EDC#TRMPBF399
14.96 USD
103.22 USD
502.49 USD
1002.36 USD
2002.27 USD
Buy Now
LT3502EDC#TRMPBF474
5002.73 USD
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LT3502EMS#PBF50
14.38 USD
103.18 USD
502.89 USD
Buy Now

Conrad COM (2)

ProductStockPriceBuy
LT3502AIDC#TRMPBF3Buy Now
LT3502IDC#TRMPBF3Buy Now

Conrad UK (2)

ProductStockPriceBuy
LT3502AIDC#TRMPBF3Buy Now
LT3502IDC#TRMPBF3Buy Now

Digi-Key (12)

ProductStockPriceBuy
LT3502AEMS#PBF1090
14.46 USD
252.99 USD
1002.54 USD
Buy Now
LT3502EMS#PBF200
14.46 USD
252.99 USD
1002.54 USD
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LT3502AIMS#PBF1231
15.36 USD
253.58 USD
1003.05 USD
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LT3502IMS#PBF364
15.36 USD
253.58 USD
1003.05 USD
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LT3502AEMS#TRPBF0
25002.64 USD
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LT3502AEMS#TRPBF2203
15.14 USD
254.59 USD
1003.17 USD
2502.91 USD
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LT3502AEMS#TRPBF2203
15.14 USD
254.59 USD
1003.17 USD
2502.91 USD
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LT3502IDC#TRMPBF0
5002.81 USD
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LT3502IDC#TRMPBF218
15.48 USD
254.89 USD
1003.37 USD
2503.09 USD
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LT3502IDC#TRMPBF218
15.48 USD
254.89 USD
1003.37 USD
2503.09 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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LT3502AEDC#TRMPBF0
5002.34 USD
Buy Now
LT3502AEDC#TRMPBF10
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
Buy Now
LT3502AEDC#TRMPBF10
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
Buy Now
LT3502EDC#TRMPBF0
5002.34 USD
Buy Now
LT3502EDC#TRMPBF0
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
Buy Now
LT3502EDC#TRMPBF0
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
Buy Now
LT3502AIDC#TRMPBF0
5002.81 USD
Buy Now
LT3502AIDC#TRMPBF0
15.48 USD
254.89 USD
1003.37 USD
2503.09 USD
Buy Now
LT3502AIDC#TRMPBF0
15.48 USD
254.89 USD
1003.37 USD
2503.09 USD
Buy Now
LT3502EMS#TRPBF0
25002.64 USD
Buy Now
LT3502EMS#TRPBF0
15.14 USD
254.59 USD
1003.17 USD
2502.91 USD
Buy Now
LT3502EMS#TRPBF0
15.14 USD
254.59 USD
1003.17 USD
2502.91 USD
Buy Now
LT3502AEDC#TRPBF0
25002.34 USD
Buy Now

Distrelec (1)

ProductStockPriceBuy
LT3502AIDC#TRMPBF268Buy Now
LT3502IMS#PBF0Buy Now

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 (8)

ProductStockPriceBuy
LT3502AEMS#PBF691
14.48 USD
104.11 USD
253.00 USD
1002.55 USD
Buy Now
LT3502EDC#TRMPBF1000
14.61 USD
104.28 USD
254.12 USD
1002.81 USD
2502.57 USD
5002.35 USD
Buy Now
LT3502AIMS#PBF458
15.38 USD
104.93 USD
253.59 USD
1003.06 USD
Buy Now
LT3502IMS#PBF333
15.38 USD
104.93 USD
253.59 USD
1003.06 USD
Buy Now
LT3502EMS#PBF279
14.48 USD
104.11 USD
253.00 USD
1002.55 USD
Buy Now
LT3502IDC#TRMPBF187
15.51 USD
105.11 USD
254.91 USD
1003.37 USD
2503.10 USD
5002.81 USD
Buy Now
LT3502AIDC#TRMPBF2500 On Order
15.51 USD
105.11 USD
254.91 USD
1003.37 USD
2503.10 USD
5002.81 USD
Buy Now
LT3502AEDC#TRMPBF1000 On Order
14.61 USD
104.28 USD
254.12 USD
1002.81 USD
2502.57 USD
5002.35 USD
Buy Now
LT3502EDC#TRPBFNone
25002.35 USD
Buy Now
LT3502IDC#TRPBFNone
25002.81 USD
Buy Now
LT3502EMS#TRPBFNone
25002.64 USD
Buy Now
LT3502AIMS#TRPBFNone
25003.16 USD
Buy Now
LT3502AEMS#TRPBFNone
25002.64 USD
Buy Now
LT3502AEDC#TRPBFNone
25002.35 USD
Buy Now
LT3502AIDC#TRPBFNone
25002.81 USD
Buy Now
LT3502IMS#TRPBFNone
25003.16 USD
Buy Now

RS Components (4)

ProductStockPriceBuy
LT3502AEDC#TRMPBF529Buy Now
LT3502AEMS#PBF22500Buy Now
LT3502EMS#PBF51Buy Now
LT3502EMS#PBF157Buy Now

Reichelt Elektronik (1)

ProductStockPriceBuy
LT3502AIDC#TRMPBF1Buy Now

Available Distributors without stock: 2

Farnell Element14 (0)

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

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 10

Arrow Electronics

ProductStockPriceBuy
LT3502IDC#TRPBF 2500
13.34 $
1002.75 $
Buy Now
LT3502IDC#TRPBF 1521
13.34 $
1002.75 $
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LT3502AIDC#TRMPBF 502
13.34 $
1002.75 $
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LT3502AEDC#TRMPBF 267
12.79 $
1002.29 $
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LT3502AIMS#PBF 163
13.51 $
1002.99 $
Buy Now

Digi-Key

ProductStockPriceBuy
LT3502AEMS#TRPBF 2203
2502.47 €
1002.69 €
253.90 €
14.37 €
Buy Now
LT3502AEMS#TRPBF 2203
2502.47 €
1002.69 €
253.90 €
14.37 €
Buy Now
LT3502AIMS#PBF 1231
1002.59 €
253.04 €
14.56 €
Buy Now
LT3502AEMS#PBF 1090
1002.16 €
252.54 €
13.79 €
Buy Now
LT3502IMS#PBF 364
1002.59 €
253.04 €
14.56 €
Buy Now
LT3502IDC#TRMPBF 218
2502.62 €
1002.86 €
254.16 €
14.66 €
Buy Now
LT3502IDC#TRMPBF 218
2502.62 €
1002.86 €
254.16 €
14.66 €
Buy Now
LT3502EMS#PBF 200
1002.16 €
252.54 €
13.79 €
Buy Now
LT3502AEDC#TRMPBF 10
2502.18 €
1002.38 €
253.49 €
13.90 €
Buy Now
LT3502AEDC#TRMPBF 10
2502.18 €
1002.38 €
253.49 €
13.90 €
Buy Now
DC1221B 4
10064.07 €
165.03 €
Buy Now
DC1089B 3
10064.07 €
2565.35 €
186.79 €
Buy Now
LT3502AEMS#TRPBF 0
25002.25 €
Buy Now
LT3502IDC#TRMPBF 0
5002.38 €
Buy Now
LT3502AEDC#TRMPBF 0
5001.99 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LT3502IDC#TRPBF 2500
25002.75 $
Buy Now
LT3502IDC#TRPBF 1271
1002.75 $
143.34 $
Buy Now
LT3502AIDC#TRMPBF 502
1002.75 $
143.34 $
Buy Now
LT3502AEDC#TRMPBF 267
1002.29 $
162.79 $
Buy Now
LT3502AIMS#PBF 163
1002.99 $
123.51 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT3502AEMS#PBF 691
14.47 $
104.09 $
252.99 $
1002.54 $
Buy Now
LT3502EDC#TRMPBF 1000
14.60 $
104.27 $
254.10 $
1002.80 $
2502.57 $
5002.34 $
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
LT3502EMS#PBF 279
14.47 $
104.09 $
252.99 $
1002.54 $
Buy Now
LT3502IDC#TRMPBF 187
15.49 $
105.09 $
254.89 $
1003.37 $
2503.09 $
5002.80 $
Buy Now
LT3502AIDC#TRMPBF 0
15.49 $
105.09 $
254.89 $
1003.37 $
2503.09 $
5002.80 $
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
LT3502EMS#TRPBF 0
25002.64 $
Buy Now
LT3502AIMS#TRPBF 0
25003.15 $
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 $
Buy Now
LT3502AIDC#TRPBF 60
475.08 $
135.49 $
18.23 $
Buy Now
LT3502EMS#PBF 174
643.70 $
184.00 $
16.00 $
Buy Now

ComS.I.T.

ProductStockPriceBuy
LT3502EDCTRPBF 305
LT3502EMSTRMPBF 80

element14 Asia-Pacific

ProductStockPriceBuy
LT3502AIDC#TRMPBF 17
12.66 $
Buy Now
LT3502AIDC#TRMPBF 17
12.66 $
Buy Now

Chip1Stop

ProductStockPriceBuy
LT3502EMS#PBF 246
2002.38 $
502.89 $
14.32 $
Buy Now
LT3502AEDC#TRMPBF 454
2002.31 $
502.49 $
14.21 $
Buy Now
LT3502AEDC#PBF 76
502.54 $
103.29 $
15.07 $
Buy Now
LT3502AEMS#PBF 40
103.14 $
14.32 $
Buy Now
LT3502EDC#TRMPBF 499
2002.27 $
502.49 $
14.96 $
Buy Now

New Advantage Corporation

ProductStockPriceBuy
LT3502AEDC#TRPBF 1800
453.73 $
18003.45 $
Buy Now

RS Components

ProductStockPriceBuy
LT3502AEDC#TRMPBF 529
54.40 GBP
253.96 GBP
1253.51 GBP
2503.07 GBP
Buy Now
LT3502AEMS#PBF 22500
502.96 GBP
2502.66 GBP
5002.43 GBP
Buy Now
LT3502EMS#PBF 51
15.91 GBP
104.87 GBP
253.84 GBP
Buy Now
LT3502EMS#PBF 157
104.87 GBP
253.84 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
LT3502EMS#PBF 0
13.51 GBP
103.14 GBP
252.10 GBP
502.04 GBP
1001.98 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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