LT3502A Buck Converter overview

Description

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Category
Sub-Category

LT3502A 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 LT3502A characteristics are a fixed 2200 kHz switching frequency and 2 available package option(s): MSOP-10 DFN-8 .

For the LT3502A 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. 2200 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

LT3502A Datasheet

Link to the most up-to-date LT3502A datasheet and the product page for EVM, tools and support information.

LT3502A

LT3502A Sample stock and distributor price breaks

LT3502A prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 7

ARROW-NAC (5)

ProductStockPriceBuy
LT3502AIMS#PBF544
13.51 USD
1002.99 USD
Buy Now
LT3502AIDC#TRMPBF151
13.34 USD
1002.75 USD
Buy Now
LT3502AEDC#TRMPBF1477
15002.29 USD
Buy Now
LT3502AEDC#TRMPBF1500
5002.29 USD
Buy Now
LT3502AEDC#TRMPBF354
12.79 USD
1002.29 USD
Buy Now

Chip-One-Stop (6)

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

DIGI-KEY (8)

ProductStockPriceBuy
LT3502AEDC#TRMPBF500
5002.29 USD
Buy Now
LT3502AEDC#TRMPBF1162
14.50 USD
254.02 USD
1002.75 USD
2502.52 USD
Buy Now
LT3502AEDC#TRMPBF1162
14.50 USD
254.02 USD
1002.75 USD
2502.52 USD
Buy Now
LT3502AIDC#TRMPBF7500
5002.75 USD
Buy Now
LT3502AIDC#TRMPBF7902
15.37 USD
254.80 USD
1003.30 USD
2503.03 USD
Buy Now
LT3502AIDC#TRMPBF7902
15.37 USD
254.80 USD
1003.30 USD
2503.03 USD
Buy Now
LT3502AIMS#PBF390
15.25 USD
253.51 USD
1002.99 USD
Buy Now
LT3502AEMS#PBF4
14.37 USD
252.93 USD
1002.49 USD
Buy Now
LT3502AEDC#TRPBF0
25002.29 USD
Buy Now
LT3502AEMS#TRPBF0
25002.59 USD
Buy Now
LT3502AIDC#TRPBF0
25002.75 USD
Buy Now
LT3502AIMS#TRPBF0
25003.09 USD
Buy Now

Element14 (5)

ProductStockPriceBuy
LT3502AEDC#PBF1077
14.60 USD
254.44 USD
1004.14 USD
Buy Now
LT3502AEMS#PBF940
16.94 USD
254.65 USD
1003.95 USD
Buy Now
LT3502AIDC#TRMPBF1977
18.41 USD
257.52 USD
1005.17 USD
2504.74 USD
Buy Now
LT3502AIDC#TRMPBF1977
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

FARNELL-ELEMENT14 (5)

ProductStockPriceBuy
LT3502AEDC#PBF1077Buy Now
LT3502AEMS#PBF1089Buy Now
LT3502AIDC#TRMPBF2633Buy Now
LT3502AIDC#TRMPBF2633Buy Now
LT3502AIMS#PBF250Buy Now

RS-COMPONENTS (5)

ProductStockPriceBuy
LT3502AEDC#TRMPBF205Buy Now
LT3502AEMS#PBF44Buy Now
LT3502AEMS#PBF510Buy Now
LT3502AIDC#TRMPBF411Buy Now
LT3502AIDC#TRMPBF1000Buy Now

Reichelt Elektronik (1)

ProductStockPriceBuy
LT3502AIDC#TRMPBF1Buy Now

Available Distributors with stock: 0

no online Distributor with LT3502A stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3502A. Optional, compare LT3502A side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT3502 LT3502 product overviewLT3502 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 LT3502A.

V-IN max. 40 V, I-OUT 0.5 A, V-OUT min. 0.8 V, Frequency typ. 2200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744028002 2.2 1.3 1.0 125.00 2.8 x 2.8 x 1.2
744029002 2.2 1.5 1.2 88.00 2.8 x 2.8 x 1.5
744030002 2.2 0.7 0.8 140.00 3.3 x 3.5 x 1.05
744031002 2.5 1.5 1.3 50.00 3.8 x 3.8 x 1.8
74479787222A 2.2 1.8 0.7 85.00 2.5 x 2 x 1
74479887222A 2.2 1.4 0.8 140.00 2.5 x 2 x 1
74479888222 2.2 1.2 1.4 200.00 2.5 x 2 x 1
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