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: 10

Chip One Stop (3)

ProductStockPriceBuy
LT3502AEDC#TRMPBF554
15.43 USD
103.52 USD
502.72 USD
1002.58 USD
2002.49 USD
5002.30 USD
Buy Now
LT3502EDC#TRMPBF539
15.15 USD
103.34 USD
502.58 USD
1002.45 USD
2002.36 USD
5002.27 USD
Buy Now
LT3502EMS#PBF200
14.53 USD
103.29 USD
502.89 USD
1002.52 USD
2002.49 USD
Buy Now

Conrad COM (2)

ProductStockPriceBuy
LT3502AIDC#TRMPBF10Buy Now
LT3502IDC#TRMPBF3Buy Now

Conrad UK (2)

ProductStockPriceBuy
LT3502AIDC#TRMPBF10Buy Now
LT3502IDC#TRMPBF3Buy Now

Digi-Key (17)

ProductStockPriceBuy
LT3502AEDC#TRMPBF11500
5002.34 USD
Buy Now
LT3502AEDC#TRMPBF11689
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
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LT3502AEDC#TRMPBF11689
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
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LT3502EDC#TRMPBF4500
5002.34 USD
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LT3502EDC#TRMPBF4870
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
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LT3502EDC#TRMPBF4870
14.59 USD
254.10 USD
1002.80 USD
2502.57 USD
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LT3502AIDC#TRMPBF8500
5002.81 USD
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LT3502AIDC#TRMPBF8952
15.48 USD
254.89 USD
1003.37 USD
2503.09 USD
Buy Now
LT3502AIDC#TRMPBF8952
15.48 USD
254.89 USD
1003.37 USD
2503.09 USD
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LT3502AEMS#PBF1859
14.46 USD
252.99 USD
1002.54 USD
Buy Now
LT3502EMS#PBF1845
14.46 USD
252.99 USD
1002.54 USD
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LT3502AIMS#PBF326
15.36 USD
253.58 USD
1003.05 USD
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LT3502AEMS#TRPBF0
25002.64 USD
Buy Now
LT3502AEMS#TRPBF2385
15.14 USD
254.59 USD
1003.17 USD
2502.91 USD
Buy Now
LT3502AEMS#TRPBF2385
15.14 USD
254.59 USD
1003.17 USD
2502.91 USD
Buy Now
LT3502IDC#TRMPBF0
5002.81 USD
Buy Now
LT3502IDC#TRMPBF511
15.48 USD
254.89 USD
1003.37 USD
2503.09 USD
Buy Now
LT3502IDC#TRMPBF511
15.48 USD
254.89 USD
1003.37 USD
2503.09 USD
Buy Now
DC1221B4
176.50 USD
10075.38 USD
Buy Now
LT3502IMS#PBF0
15.36 USD
253.58 USD
1003.05 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
LT3502EDC#TRPBF0
25002.34 USD
Buy Now

Distrelec (1)

ProductStockPriceBuy
LT3502AIDC#TRMPBF408Buy Now
LT3502IMS#PBF0Buy Now

Element14 (3)

ProductStockPriceBuy
LT3502AIDC#TRMPBF999
13.27 USD
Buy Now
LT3502AIDC#TRMPBF999
13.27 USD
Buy Now
LT3502EMS#PBF6
16.81 USD
254.56 USD
1003.88 USD
Buy Now

Farnell Element14 (2)

ProductStockPriceBuy
LT3502AEDC#PBF0Buy Now
LT3502AEMS#PBF0Buy Now
LT3502AIDC#TRMPBF1358Buy Now
LT3502AIDC#TRMPBF0Buy Now
LT3502AIMS#PBF2Buy Now
LT3502EDC#PBF0Buy Now
LT3502EMS#PBF0Buy Now

Mouser-Electronics (8)

ProductStockPriceBuy
LT3502AIDC#TRMPBF1404
15.63 USD
105.21 USD
255.01 USD
1003.45 USD
2503.16 USD
5002.88 USD
Buy Now
LT3502AIMS#PBF250
15.50 USD
105.04 USD
253.68 USD
1003.13 USD
Buy Now
LT3502IMS#PBF250
15.50 USD
105.04 USD
253.68 USD
1003.13 USD
Buy Now
LT3502EDC#TRMPBF118
14.71 USD
104.38 USD
254.20 USD
1002.88 USD
2502.64 USD
5002.40 USD
Buy Now
LT3502EMS#PBF1050 On Order
14.59 USD
104.19 USD
253.06 USD
1002.60 USD
Buy Now
LT3502AEMS#PBF549 On Order
14.59 USD
104.19 USD
253.06 USD
1002.60 USD
Buy Now
LT3502IDC#TRMPBF500 On Order
15.63 USD
105.21 USD
255.01 USD
1003.45 USD
2503.16 USD
5002.88 USD
Buy Now
LT3502AEDC#TRMPBF500 On Order
14.71 USD
104.38 USD
254.20 USD
1002.88 USD
2502.64 USD
5002.40 USD
Buy Now
LT3502IDC#TRPBFNone
25002.88 USD
Buy Now
LT3502AIDC#TRPBFNone
25002.88 USD
Buy Now
LT3502EDC#TRPBFNone
25002.40 USD
Buy Now
LT3502AEDC#TRPBFNone
25002.40 USD
Buy Now
LT3502EMS#TRPBFNone
25002.70 USD
Buy Now
LT3502AIMS#TRPBFNone
25003.23 USD
Buy Now
LT3502AEMS#TRPBFNone
25002.70 USD
Buy Now
LT3502IMS#TRPBFNone
25003.23 USD
Buy Now

RS Components (7)

ProductStockPriceBuy
LT3502AEDC#TRMPBF387Buy Now
LT3502AEMS#PBF16Buy Now
LT3502AEMS#PBF26Buy Now
LT3502AIDC#TRMPBF980Buy Now
LT3502EDC#TRMPBF460Buy Now
LT3502EMS#PBF69Buy Now
LT3502EMS#PBF50Buy Now

Reichelt Elektronik (1)

ProductStockPriceBuy
LT3502AIDC#TRMPBF1Buy Now

Available Distributors without stock: 1

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 10

Arrow Electronics

ProductStockPriceBuy
LT3502AEDC#TRPBF 5000
12.79 $
1002.29 $
Buy Now
LT3502EDC#TRMPBF 1500
12.79 $
1002.29 $
Buy Now
LT3502AIDC#TRMPBF 1500
13.34 $
1002.75 $
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LT3502AIDC#TRMPBF 1439
13.34 $
1002.75 $
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LT3502IDC#TRMPBF 965
13.34 $
1002.75 $
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LT3502IDC#TRMPBF 500
13.34 $
1002.75 $
Buy Now
LT3502AIMS#PBF 396
13.51 $
1002.99 $
Buy Now
LT3502IMS#PBF 50
13.51 $
1002.99 $
Buy Now
LT3502AEMS#PBF 16
12.93 $
1002.49 $
Buy Now
LT3502EDC#TRMPBF 0
12.79 $
1002.29 $
Buy Now
LT3502EDC#TRMPBF 0
12.79 $
1002.29 $
Buy Now
LT3502IMS#PBF 0
13.51 $
1002.99 $
Buy Now
LT3502AIDC#TRMPBF 0
13.34 $
1002.75 $
Buy Now
LT3502IDC#TRMPBF 0
13.34 $
1002.75 $
Buy Now
LT3502AEDC#TRPBF 0
12.79 $
1002.29 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT3502AEDC#TRMPBF 11689
14.59 $
254.10 $
1002.80 $
2502.57 $
Buy Now
LT3502AEDC#TRMPBF 11689
14.59 $
254.10 $
1002.80 $
2502.57 $
Buy Now
LT3502AEDC#TRMPBF 11500
5002.34 $
Buy Now
LT3502AIDC#TRMPBF 8952
15.48 $
254.89 $
1003.37 $
2503.09 $
Buy Now
LT3502AIDC#TRMPBF 8952
15.48 $
254.89 $
1003.37 $
2503.09 $
Buy Now
LT3502AIDC#TRMPBF 8500
5002.81 $
Buy Now
LT3502EDC#TRMPBF 4870
14.59 $
254.10 $
1002.80 $
2502.57 $
Buy Now
LT3502EDC#TRMPBF 4870
14.59 $
254.10 $
1002.80 $
2502.57 $
Buy Now
LT3502EDC#TRMPBF 4500
5002.34 $
Buy Now
LT3502AEMS#TRPBF 2385
15.14 $
254.59 $
1003.17 $
2502.91 $
Buy Now
LT3502AEMS#TRPBF 2385
15.14 $
254.59 $
1003.17 $
2502.91 $
Buy Now
LT3502AEMS#PBF 1859
14.46 $
252.99 $
1002.54 $
Buy Now
LT3502EMS#PBF 1845
14.46 $
252.99 $
1002.54 $
Buy Now
LT3502IDC#TRMPBF 516
15.48 $
254.89 $
1003.37 $
2503.09 $
Buy Now
LT3502AIMS#PBF 326
15.36 $
253.58 $
1003.05 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT3502AIDC#TRMPBF 1404
15.49 $
105.09 $
254.89 $
1003.37 $
2503.09 $
5002.80 $
Buy Now
LT3502AIMS#PBF 250
15.37 $
104.92 $
253.58 $
1003.05 $
Buy Now
LT3502IMS#PBF 250
15.37 $
104.92 $
253.58 $
1003.05 $
Buy Now
LT3502EDC#TRMPBF 118
14.60 $
104.27 $
254.10 $
1002.80 $
2502.57 $
5002.34 $
Buy Now
LT3502EMS#PBF 0
14.47 $
104.09 $
252.99 $
1002.54 $
Buy Now
LT3502AEMS#PBF 0
14.47 $
104.09 $
252.99 $
1002.54 $
Buy Now
LT3502IDC#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
LT3502IDC#TRPBF 0
25002.80 $
Buy Now
LT3502AIDC#TRPBF 0
25002.80 $
Buy Now
LT3502EDC#TRPBF 0
25002.34 $
Buy Now
LT3502AEDC#TRPBF 0
25002.34 $
Buy Now
LT3502EMS#TRPBF 0
25002.64 $
Buy Now
LT3502AIMS#TRPBF 0
25003.15 $
Buy Now
LT3502AEMS#TRPBF 0
25002.64 $
Buy Now
show stock=0hide stock=0

Quest Components

ProductStockPriceBuy
LT3502AIDC#TRMPBF 25
73.00 $
34.00 $
16.00 $
Buy Now
LT3502AIDC#TRPBF 60
183.99 $
64.37 $
17.48 $
Buy Now
LT3502EMS#PBF 174
682.80 $
73.00 $
16.00 $
Buy Now

ComS.I.T.

ProductStockPriceBuy
LT3502EDCTRPBF 305
LT3502EMSTRMPBF 80

element14 Asia-Pacific

ProductStockPriceBuy
LT3502EMS#PBF 6
15.45 $
253.65 $
1003.10 $
Buy Now
LT3502AIDC#TRMPBF 1003
12.62 $
Buy Now
LT3502AIDC#TRMPBF 1003
12.62 $
Buy Now

Farnell element14

ProductStockPriceBuy
LT3502EMS#PBF 0
13.51 GBP
103.14 GBP
252.10 GBP
502.04 GBP
1001.98 GBP
Buy Now
LT3502AIDC#TRMPBF 1338
14.38 GBP
103.94 GBP
253.52 GBP
502.97 GBP
1002.42 GBP
Buy Now
LT3502AIMS#PBF 2
13.85 GBP
103.46 GBP
252.31 GBP
502.28 GBP
1002.25 GBP
Buy Now
show stock=0hide stock=0

Chip1Stop

ProductStockPriceBuy
LT3502EMS#PBF 200
2002.49 $
502.89 $
14.53 $
Buy Now
LT3502AEDC#TRMPBF 554
5002.30 $
1002.58 $
15.43 $
Buy Now
LT3502EDC#TRMPBF 539
5002.27 $
1002.45 $
15.15 $
Buy Now

New Advantage Corporation

ProductStockPriceBuy
LT3502AEDC#TRPBF 6800
25002.80 $
68002.64 $
Buy Now

RS Components

ProductStockPriceBuy
LT3502EMS#PBF 69
15.91 GBP
103.52 GBP
253.11 GBP
Buy Now
LT3502EMS#PBF 50
103.52 GBP
253.11 GBP
Buy Now
LT3502AIDC#TRMPBF 980
12.26 GBP
Buy Now
LT3502AEDC#TRMPBF 387
103.16 GBP
253.14 GBP
503.09 GBP
753.04 GBP
Buy Now
LT3502AEMS#PBF 26
103.33 GBP
203.19 GBP
303.06 GBP
502.88 GBP
Buy Now
LT3502AEMS#PBF 16
23.47 GBP
103.33 GBP
203.19 GBP
303.06 GBP
502.88 GBP
Buy Now
LT3502EDC#TRMPBF 460
103.51 GBP
203.46 GBP
303.42 GBP
503.37 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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