LT3481 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LT3481 is a 36.00 V non-sync Buck Converter from with 2.00 A output current. The maximum 36.00 V input voltage can be regulated down into a 1.27 V to 20.00 V output voltage.

It requires are a typical inductor size of 4.70 µH, a typical external component count of 10 and achieves a peak efficiency of 89 %. Further LT3481 characteristics are a adjustable 2800 kHz switching frequency and 2 available package option(s): MSOP-10 DFN-10 .

For the LT3481 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. 3.60 V
V-IN max. 36.00 V
I-OUT? 2.00 A
V-OUT min. 1.27 V
V-OUT max. 20.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 2800 kHz
Frequency adjustable
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 300 kHz
Frequency adj./ ext.clock max 2800 kHz
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK yes
Quiescent current max. 60 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 150 °C
thermal shutdown typ.
Inductor size typ. 4.70 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 89 %
Component count min. 10
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT
MSOP MSOP-10
QFN/DFN DFN-10
SO/SOIC
SOP
DIP
TO
DDPAK

LT3481 Datasheet

Link to the most up-to-date LT3481 datasheet and the product page for EVM, tools and support information.

LT3481

LT3481 Sample stock and distributor price breaks

LT3481 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with LT3481 stock available

Available Distributors with stock: 11

Digi-Key

ProductStockPriceBuy
LT3481EDD#PBF 2980
1003.57 €
254.10 €
15.77 €
Buy Now
LT3481IDD#PBF 1878
1004.28 €
254.93 €
16.94 €
Buy Now
LT3481IMSE#PBF 1427
1004.28 €
254.93 €
16.94 €
Buy Now
LT3481HDD#PBF 104
1004.56 €
255.24 €
17.85 €
Buy Now
LT3481EMSE#TRPBF 7
255.89 €
16.60 €
Buy Now
LT3481EMSE#TRPBF 7
255.89 €
16.60 €
Buy Now
LT3481EMSE#TRPBF 0
25003.61 €
Buy Now
LT3481EMSE#PBF 0
1003.57 €
254.10 €
15.77 €
Buy Now
LT3481EDD#TRPBF 0
25003.61 €
Buy Now
LT3481EDD#TRPBF 0
256.98 €
17.81 €
Buy Now
LT3481EDD#TRPBF 0
256.98 €
17.81 €
Buy Now
LT3481IDD#TRPBF 0
25004.33 €
Buy Now
LT3481IMSE#TRPBF 0
25004.33 €
Buy Now
LT3481HDD#TRPBF 0
25004.60 €
Buy Now
LT3481HMSE#PBF 0
1505.24 €
Buy Now
show stock=0hide stock=0

Newark element14

ProductStockPriceBuy
LT3481EMSE#PBF 6
1003.82 $
254.63 $
16.54 $
Buy Now

Rochester Electronics

ProductStockPriceBuy
LT3481HDD#PBF 363
10007.80 $
5008.21 $
1008.55 $
258.92 $
19.60 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT3481EDD#PBF 717
16.68 $
106.12 $
504.73 $
2504.01 $
Buy Now
LT3481HMSE#PBF 148
19.06 $
108.31 $
506.05 $
2505.14 $
Buy Now
LT3481IDD#PBF 82
18.01 $
107.34 $
505.68 $
2504.81 $
Buy Now
LT3481IMSE#PBF 0
18.01 $
107.34 $
505.68 $
2504.81 $
Buy Now
LT3481EMSE#PBF 0
16.68 $
106.12 $
504.73 $
2504.01 $
Buy Now
LT3481HDD#PBF 0
19.06 $
108.31 $
506.05 $
2505.14 $
Buy Now
LT3481EMSE#TRPBF 0
25004.80 $
Buy Now
LT3481EDD#TRPBF 0
25004.80 $
Buy Now
LT3481IDD#TRPBF 0
25005.62 $
Buy Now
LT3481IMSE#TRPBF 0
25005.62 $
Buy Now
LT3481HDD#TRPBF 0
25006.29 $
Buy Now
LT3481HMSE#TRPBF 0
25006.29 $
Buy Now
LT3481EMSE 0 Buy Now
LT3481EDD 0 Buy Now
LT3481IMSE 0 Buy Now
show stock=0hide stock=0

Bristol Electronics

ProductStockPriceBuy
LT3481EDD#TRPBF 27 Buy Now
LT3481EMSE#PBF 6 Buy Now

Quest Components

ProductStockPriceBuy
LT3481IDD#TRA1PBF 1318
4328.70 $
1989.28 $
113.05 $
Buy Now

TME Electronic Components

ProductStockPriceBuy
LT3481EMSE#PBF 50
17.74 $
37.35 $
106.16 $
255.59 $
Buy Now

ComS.I.T.

ProductStockPriceBuy
LT3481EMSEPBF 50
LT3481EMSETRPBF 555

Farnell element14

ProductStockPriceBuy
LT3481HDD#PBF 70
503.23 GBP
253.24 GBP
103.25 GBP
13.26 GBP
Buy Now

Chip 1 Exchange

ProductStockPriceBuy
LT3481IDD#TRA1PBF 2069

RS Components

ProductStockPriceBuy
LT3481EDD#PBF 353
613.82 GBP
304.42 GBP
65.02 GBP
Buy Now
LT3481IMSE#PBF 2
255.02 GBP
105.89 GBP
Buy Now
LT3481IDD#PBF 3
614.82 GBP
305.23 GBP
65.64 GBP
Buy Now

Available Distributors without stock: 1

Richardson RFPD

ProductStockPriceBuy
LT3481EDD#PBF 0
1214.38 $
5004.26 $
10004.15 $
50003.99 $
Buy Now
LT3481EDD#TRPBF 0
25004.21 $
50004.05 $
Buy Now
LT3481EMSE#PBF 0
1504.38 $
5004.26 $
10004.15 $
50003.99 $
Buy Now
LT3481EMSE#TRPBF 0
25004.21 $
50004.05 $
Buy Now
LT3481HDD#PBF 0
1215.58 $
5005.43 $
10005.28 $
50005.09 $
Buy Now
LT3481HDD#TRPBF 0
25005.37 $
50005.16 $
Buy Now
LT3481HMSE#PBF 0
1005.58 $
5005.43 $
10005.28 $
50005.09 $
Buy Now
LT3481HMSE#TRPBF 0
25005.37 $
50005.16 $
Buy Now
LT3481IDD#PBF 0
1215.25 $
5005.11 $
10004.98 $
50004.79 $
Buy Now
LT3481IDD#TRPBF 0
25005.05 $
50004.86 $
Buy Now
LT3481IMSE#PBF 0
1505.25 $
5005.11 $
10004.98 $
50004.79 $
Buy Now
LT3481IMSE#TRPBF 0
25005.05 $
50004.86 $
Buy Now

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3481. Optional, compare LT3481 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% A8582 A8582 product overviewA8582 product overview Allegro TSSOP-16
0% A8583 A8583 product overviewA8583 product overview Allegro TSSOP-16
0% A8584 A8584 product overviewA8584 product overview Allegro TSSOP-16
0% LT3480 LT3480 product overviewLT3480 product overview Linear Technology DFN-10, MSOP-10
0% LT3975 LT3975 product overviewLT3975 product overview Linear Technology MSOP-16
0% LT3980 LT3980 product overviewLT3980 product overview Linear Technology DFN-14, MSOP-16
0% LM26003 LM26003 product overviewLM26003 product overview Texas Instruments HTSSOP-20
0% LM26003-Q1 LM26003-Q1 product overviewLM26003-Q1 product overview Texas Instruments HTSSOP-20
0% TPS54240 TPS54240 product overviewTPS54240 product overview Texas Instruments SON-10, MSOP-10
0% TPS54240-Q1 TPS54240-Q1 product overviewTPS54240-Q1 product overview Texas Instruments SON-10, MSOP-10
0% TPS54262-Q1 TPS54262-Q1 product overviewTPS54262-Q1 product overview Texas Instruments HTSSOP-20
0% TPS54362-Q1 TPS54362-Q1 product overviewTPS54362-Q1 product overview Texas Instruments HTSSOP-20
0% TPS54361 TPS54361 product overviewTPS54361 product overview Texas Instruments WSON-10
0% TPS54361-Q1 TPS54361-Q1 product overviewTPS54361-Q1 product overview Texas Instruments WSON-10
25% LM26001 LM26001 product overviewLM26001 product overview Texas Instruments HTSSOP-16
25% LM26001-Q1 LM26001-Q1 product overviewLM26001-Q1 product overview Texas Instruments HTSSOP-16
25% TPS54140A TPS54140A product overviewTPS54140A product overview Texas Instruments SON-10, MSOP-10
50% LT3682 LT3682 product overviewLT3682 product overview Linear Technology DFN-12
50% LT3971 LT3971 product overviewLT3971 product overview Linear Technology DFN-10, MSOP-10
50% LT3971A LT3971A product overviewLT3971A product overview Linear Technology MSOP-8
50% LT3991 LT3991 product overviewLT3991 product overview Linear Technology DFN-10, MSOP-10
50% LM26001B LM26001B product overviewLM26001B product overview Texas Instruments HTSSOP-16
50% TPS54162-Q1 TPS54162-Q1 product overviewTPS54162-Q1 product overview Texas Instruments HTSSOP-20
50% TPS57160-Q1 TPS57160-Q1 product overviewTPS57160-Q1 product overview Texas Instruments SON-10, MSOP-10

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3481.

V-IN max. 36 V, I-OUT 2 A, V-OUT min. 1.265 V, Frequency typ. 2800 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74402500047 0.5 3.3 4.7 19.00 2.8 x 2.8 x 3
74402500072 0.7 3.0 4.0 23.50 2.8 x 2.8 x 3
744040240068 0.7 2.5 3.5 35.00 2.5 x 2 x 1.2
744040320047 0.5 3.0 2.8 18.00 3 x 3 x 1.5
744040410047 0.5 3.3 4.3 28.00 4 x 4 x 1.2
74404200056 0.6 3.1 3.0 19.00 4.8 x 4.8 x 2
74404300082 0.8 3.5 3.7 14.00 4.8 x 4.8 x 3
74406800056 0.6 3.4 4.0 22.00 8 x 8 x 1.2
744383210047 0.5 2.2 3.7 76.00 2.5 x 2 x 0.6
744383220047 0.5 2.3 4.4 70.00 2.5 x 2 x 0.8
744383230068 0.7 3.1 4.7 46.00 2.5 x 2 x 1
744383230082 0.8 2.6 4.3 53.00 2.5 x 2 x 1
744383430068 0.7 2.0 4.7 65.00 2.5 x 1.6 x 0.6
74479275147 0.5 2.6 3.3 38.00 2 x 1.25 x 1
74479276147 0.5 2.9 4.2 34.00 2 x 1.6 x 1
74479276147C 0.5 2.7 4.5 33.00 2 x 1.25 x 1
74479276168 0.7 2.5 3.4 45.00 2 x 1.6 x 1
74479298147 0.5 3.0 4.5 28.00 3.2 x 2.5 x 1
74479976147 0.5 2.7 2.9 24.00 2 x 1.6 x 0.5
74479976147A 0.5 3.0 3.4 20.00 2 x 1.6 x 0.5
74479977147 0.5 2.2 2.4 55.00 2 x 1.6 x 0.9
784383210047 0.5 2.2 3.7 76.00 2.5 x 2 x 0.6
784383220047 0.5 2.3 4.4 70.00 2.5 x 2 x 0.8
784383230068 0.7 3.1 4.7 46.00 2.5 x 2 x 1
784383230082 0.8 2.6 4.3 53.00 2.5 x 2 x 1
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