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: 7

Chip-One-Stop (13)

ProductStockPriceBuy
LT3502AEDC#TRMPBF64
13.58 USD
102.87 USD
502.43 USD
Buy Now
LT3502AEDC#TRMPBF1000
15.71 USD
104.69 USD
254.48 USD
504.09 USD
1003.79 USD
2003.64 USD
Buy Now
LT3502AEMS#PBF986
14.55 USD
103.83 USD
253.79 USD
503.61 USD
1003.53 USD
2003.36 USD
Buy Now
LT3502AIDC#TRMPBF1000
5003.96 USD
Buy Now
LT3502AIDC#TRMPBF400
16.93 USD
105.48 USD
255.22 USD
504.78 USD
1004.41 USD
2004.24 USD
Buy Now
LT3502AIMS#PBF950
15.55 USD
104.67 USD
254.62 USD
504.41 USD
1004.30 USD
2004.10 USD
Buy Now
LT3502EDC#TRMPBF278
13.96 USD
103.79 USD
502.78 USD
1002.39 USD
Buy Now
LT3502EDC#TRMPBF900
14.45 USD
103.98 USD
503.85 USD
1003.34 USD
2003.26 USD
5003.07 USD
Buy Now
LT3502EMS#PBF70
13.43 USD
102.63 USD
Buy Now
LT3502EMS#PBF325
14.84 USD
104.07 USD
254.02 USD
503.84 USD
1003.75 USD
2003.57 USD
Buy Now
LT3502EMS#TRPBF2500
25002.76 USD
Buy Now
LT3502IDC#TRMPBF84
17.24 USD
105.72 USD
255.45 USD
504.99 USD
Buy Now
LT3502IDC#TRMPBF2000
5003.66 USD
Buy Now

DIGI-KEY (18)

ProductStockPriceBuy
LT3502AIDC#TRMPBF10Buy Now
LT3502IDC#TRMPBF3Buy Now
LT3502AEDC#TRMPBF5000
5002.29 USD
Buy Now
LT3502AEDC#TRMPBF5610
14.50 USD
254.02 USD
1002.75 USD
2502.52 USD
Buy Now
LT3502AEDC#TRMPBF5610
14.50 USD
254.02 USD
1002.75 USD
2502.52 USD
Buy Now
LT3502EDC#TRMPBF2000
5002.29 USD
Buy Now
LT3502EDC#TRMPBF2787
14.50 USD
254.02 USD
1002.75 USD
2502.52 USD
Buy Now
LT3502EDC#TRMPBF2787
14.50 USD
254.02 USD
1002.75 USD
2502.52 USD
Buy Now
LT3502IDC#TRMPBF500
5002.75 USD
Buy Now
LT3502IDC#TRMPBF1106
15.37 USD
254.80 USD
1003.30 USD
2503.03 USD
Buy Now
LT3502IDC#TRMPBF1106
15.37 USD
254.80 USD
1003.30 USD
2503.03 USD
Buy Now
LT3502EMS#PBF2795
14.37 USD
252.93 USD
1002.49 USD
Buy Now
LT3502AEMS#PBF1106
14.37 USD
252.93 USD
1002.49 USD
Buy Now
LT3502AIMS#PBF349
15.25 USD
253.51 USD
1002.99 USD
Buy Now
LT3502IMS#PBF400
15.25 USD
253.51 USD
1002.99 USD
Buy Now
LT3502AIDC#TRMPBF0
5002.75 USD
Buy Now
LT3502AIDC#TRMPBF187
15.37 USD
254.80 USD
1003.30 USD
2503.03 USD
Buy Now
LT3502AIDC#TRMPBF187
15.37 USD
254.80 USD
1003.30 USD
2503.03 USD
Buy Now
DC1221B3
175.38 USD
Buy Now
LT3502AEDC#TRPBF0
25002.29 USD
Buy Now
LT3502EDC#TRPBF0
25002.29 USD
Buy Now
LT3502AEMS#TRPBF0
25002.59 USD
Buy Now
LT3502EMS#TRPBF0
25002.59 USD
Buy Now
LT3502AIDC#TRPBF0
25002.75 USD
Buy Now
LT3502IDC#TRPBF0
25002.75 USD
Buy Now
LT3502AIMS#TRPBF0
25003.09 USD
Buy Now
LT3502IMS#TRPBF0
25003.09 USD
Buy Now

Element14 (7)

ProductStockPriceBuy
LT3502AEDC#PBF862
14.60 USD
254.44 USD
1004.14 USD
Buy Now
LT3502AEMS#PBF920
16.94 USD
254.65 USD
1003.95 USD
Buy Now
LT3502AIDC#TRMPBF2443
18.41 USD
257.52 USD
1005.17 USD
2504.74 USD
Buy Now
LT3502AIDC#TRMPBF2443
18.41 USD
257.52 USD
1005.17 USD
2504.74 USD
Buy Now
LT3502AIMS#PBF200
18.34 USD
255.57 USD
1004.75 USD
Buy Now
LT3502EDC#PBF300
14.60 USD
254.44 USD
1004.14 USD
Buy Now
LT3502EMS#PBF294
16.94 USD
254.65 USD
1003.95 USD
Buy Now

FARNELL-ELEMENT14 (7)

ProductStockPriceBuy
LT3502AEDC#PBF862Buy Now
LT3502AEMS#PBF1069Buy Now
LT3502AIDC#TRMPBF3103Buy Now
LT3502AIDC#TRMPBF3103Buy Now
LT3502AIMS#PBF245Buy Now
LT3502EDC#PBF300Buy Now
LT3502EMS#PBF494Buy Now

NEWARK (2)

ProductStockPriceBuy
LT3502AEDC#TRMPBF0
13.21 USD
5002.29 USD
Buy Now
LT3502AEDC#TRPBF0
13.39 USD
25002.43 USD
Buy Now
LT3502AEMS#PBF0
14.39 USD
252.94 USD
1002.49 USD
Buy Now
LT3502AIDC#PBF0
13.85 USD
2002.75 USD
Buy Now
LT3502AIDC#PBF20
15.23 USD
254.68 USD
1003.30 USD
2503.03 USD
Buy Now
LT3502AIDC#TRMPBF0
13.85 USD
5002.75 USD
Buy Now
LT3502AIDC#TRPBF0
14.07 USD
25002.92 USD
Buy Now
LT3502AIMS#PBF0
15.27 USD
253.53 USD
1002.99 USD
Buy Now
LT3502EDC#PBF0
14.03 USD
252.71 USD
1002.29 USD
Buy Now
LT3502EDC#TRMPBF0
13.21 USD
5002.29 USD
Buy Now
LT3502EDC#TRPBF0
13.39 USD
25002.43 USD
Buy Now
LT3502EMS#PBF14
14.39 USD
252.94 USD
1002.49 USD
Buy Now
LT3502EMS#TRPBF0
14.25 USD
25003.05 USD
Buy Now
LT3502IDC#PBF0
14.68 USD
253.78 USD
1003.34 USD
Buy Now
LT3502IMS#TRPBF0
15.09 USD
25003.65 USD
Buy Now

RS-COMPONENTS (9)

ProductStockPriceBuy
LT3502AEDC#TRMPBF199Buy Now
LT3502AEMS#PBF44Buy Now
LT3502AEMS#PBF510Buy Now
LT3502AIDC#TRMPBF326Buy Now
LT3502AIDC#TRMPBF1000Buy Now
LT3502EDC#TRMPBF472Buy Now
LT3502EMS#PBF57Buy Now
LT3502EMS#PBF110Buy Now
LT3502EMS#PBF100Buy Now

Reichelt Elektronik (1)

ProductStockPriceBuy
LT3502AIDC#TRMPBF1Buy Now

Available Distributors with stock: 0

no online Distributor with LT3502 stock available

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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