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: 11

Chip One Stop (2)

ProductStockPriceBuy
LT3481EMSE#PBF48
17.06 USD
106.44 USD
Buy Now
LT3481IMSE#PBF116
110.20 USD
106.04 USD
505.16 USD
1004.74 USD
Buy Now

Conrad COM (2)

ProductStockPriceBuy
LT3481EMSE3Buy Now
LT3481IMSE#PBF6Buy Now

Conrad UK (2)

ProductStockPriceBuy
LT3481EMSE3Buy Now
LT3481IMSE#PBF6Buy Now

Digi-Key (7)

ProductStockPriceBuy
LT3481EMSE#PBF374
16.66 USD
254.73 USD
1003.90 USD
Buy Now
LT3481EDD#PBF258
16.66 USD
254.73 USD
1003.90 USD
Buy Now
LT3481IDD#PBF1121
18.00 USD
255.68 USD
1004.58 USD
Buy Now
LT3481IMSE#PBF938
18.00 USD
255.68 USD
1004.58 USD
Buy Now
LT3481EMSE#TRPBF0
25004.00 USD
Buy Now
LT3481EMSE#TRPBF2000
17.61 USD
256.79 USD
1004.80 USD
2504.40 USD
Buy Now
LT3481EMSE#TRPBF2000
17.61 USD
256.79 USD
1004.80 USD
2504.40 USD
Buy Now
LT3481HDD#PBF104
19.05 USD
256.05 USD
1005.14 USD
Buy Now
LT3481EDD#TRPBF0
25004.00 USD
Buy Now
LT3481IDD#TRPBF0
25004.68 USD
Buy Now
LT3481IMSE#TRPBF0
25004.68 USD
Buy Now
LT3481HMSE#PBF0
1505.14 USD
Buy Now
LT3481HDD#TRPBF0
25005.24 USD
Buy Now
LT3481HMSE#TRPBF0
25005.24 USD
Buy Now

Element14 (3)

ProductStockPriceBuy
LT3481EMSE#PBF57
110.16 USD
257.22 USD
1005.95 USD
Buy Now
LT3481IDD#PBF34
112.21 USD
258.67 USD
1006.99 USD
Buy Now
LT3481IMSE#PBF388
112.21 USD
258.67 USD
1006.99 USD
Buy Now

Farnell Element14 (5)

ProductStockPriceBuy
LT3481EDD#PBF2Buy Now
LT3481EMSE#PBF66Buy Now
LT3481HDD#PBF86Buy Now
LT3481IDD#PBF34Buy Now
LT3481IMSE#PBF388Buy Now

Mouser Electronics (5)

ProductStockPriceBuy
LT3481EMSE#PBF567
16.85 USD
106.28 USD
254.85 USD
1004.00 USD
Buy Now
LT3481IDD#PBF236
18.21 USD
107.53 USD
255.83 USD
1004.70 USD
Buy Now
LT3481IMSE#PBF99
18.21 USD
107.53 USD
255.83 USD
1004.70 USD
Buy Now
LT3481HMSE#PBF122
19.29 USD
108.51 USD
256.20 USD
1005.26 USD
Buy Now
LT3481EDD#PBF484 On Order
16.85 USD
106.28 USD
254.85 USD
1004.00 USD
Buy Now
LT3481EMSE#TRPBFNone
17.80 USD
107.25 USD
256.96 USD
1004.93 USD
2504.51 USD
25004.10 USD
Buy Now
LT3481IMSE#TRPBFNone
25004.80 USD
Buy Now
LT3481IDD#TRPBFNone
25004.80 USD
Buy Now
LT3481EDD#TRPBFNone
25004.10 USD
Buy Now
LT3481HDD#PBFNone
2425.26 USD
Buy Now
LT3481HMSE#TRPBFNone
25005.38 USD
Buy Now
LT3481HDD#TRPBFNone
25005.38 USD
Buy Now

Newark Electronics (1)

ProductStockPriceBuy
LT3481EMSE#PBF63
16.54 USD
254.63 USD
1003.82 USD
Buy Now

RS Components (5)

ProductStockPriceBuy
LT3481EDD#PBF22Buy Now
LT3481EMSE#PBF19Buy Now
LT3481EMSE#PBF292Buy Now
LT3481IDD#PBF12Buy Now
LT3481IMSE#PBF44Buy Now

Reichelt Elektronik (1)

ProductStockPriceBuy
LT3481EMSE#PBF1Buy Now

Transfer Multisort Elektronik (1)

ProductStockPriceBuy
LT3481EMSE#PBF24Buy Now

Available Distributors without stock: 1

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 12

Arrow Electronics

ProductStockPriceBuy
LT3481EMSE#TRPBF 4836
1003.92 $
Buy Now
LT3481EMSE#TRPBF 356
1003.92 $
Buy Now
LT3481IDD#PBF 296
15.57 $
1004.49 $
Buy Now
LT3481HDD#PBF 79
15.93 $
1005.04 $
Buy Now
LT3481IMSE#PBF 1
15.57 $
1004.49 $
Buy Now
LT3481EMSE#TRPBF 0
1003.92 $
Buy Now
LT3481EMSE#TRPBF 0
1003.92 $
Buy Now
LT3481HMSE#TRPBF 0
1005.14 $
Buy Now
LT3481HMSE#PBF 0
15.93 $
1005.04 $
Buy Now
LT3481IDD#TRPBF 0
1004.59 $
Buy Now
LT3481EMSE#PBF 0
14.64 $
1003.82 $
Buy Now
LT3481IMSE#TRPBF 0
1004.59 $
Buy Now
LT3481HDD#TRPBF 0
1005.14 $
Buy Now
LT3481EDD#TRPBF 0
1003.92 $
Buy Now
LT3481EDD#PBF 0
14.64 $
1003.82 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT3481EMSE#TRPBF 2000
2503.61 €
1003.94 €
255.58 €
16.25 €
Buy Now
LT3481EMSE#TRPBF 2000
2503.61 €
1003.94 €
255.58 €
16.25 €
Buy Now
LT3481IDD#PBF 1121
1003.76 €
254.67 €
16.57 €
Buy Now
LT3481IMSE#PBF 938
1003.76 €
254.67 €
16.57 €
Buy Now
LT3481EMSE#PBF 374
1003.20 €
253.89 €
15.47 €
Buy Now
LT3481EDD#PBF 258
1003.20 €
253.89 €
15.47 €
Buy Now
LT3481HDD#PBF 104
1004.22 €
254.97 €
17.43 €
Buy Now
LT3481EMSE#TRPBF 0
25003.28 €
Buy Now
LT3481EDD#TRPBF 0
25003.28 €
Buy Now
LT3481IDD#TRPBF 0
25003.85 €
Buy Now
LT3481IMSE#TRPBF 0
25003.85 €
Buy Now
LT3481HMSE#PBF 0
1504.22 €
Buy Now
LT3481HDD#TRPBF 0
25004.31 €
Buy Now
LT3481HMSE#TRPBF 0
25004.31 €
Buy Now
show stock=0hide stock=0

Newark element14

ProductStockPriceBuy
LT3481EMSE#PBF 63
16.54 $
254.63 $
1003.82 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT3481EMSE#PBF 567
16.68 $
106.12 $
254.73 $
1003.90 $
Buy Now
LT3481IDD#PBF 236
18.01 $
107.34 $
255.68 $
1004.58 $
Buy Now
LT3481IMSE#PBF 99
18.01 $
107.34 $
255.68 $
1004.58 $
Buy Now
LT3481HMSE#PBF 122
19.06 $
108.31 $
256.05 $
1005.14 $
Buy Now
LT3481EDD#PBF 0
16.68 $
106.12 $
254.73 $
1003.90 $
Buy Now
LT3481EMSE#TRPBF 0
17.61 $
107.07 $
256.79 $
1004.80 $
2504.40 $
25004.00 $
Buy Now
LT3481IMSE#TRPBF 0
25004.68 $
Buy Now
LT3481IDD#TRPBF 0
25004.68 $
Buy Now
LT3481EDD#TRPBF 0
25004.00 $
Buy Now
LT3481HDD#PBF 0
2425.14 $
Buy Now
LT3481HMSE#TRPBF 0
25005.24 $
Buy Now
LT3481HDD#TRPBF 0
25005.24 $
Buy Now
LT3481EDD 0 Buy Now
LT3481EMSE 0 Buy Now
LT3481IMSE 0 Buy Now
show stock=0hide stock=0

Bristol Electronics

ProductStockPriceBuy
LT3481EDD#TRPBF 27 Buy Now

Quest Components

ProductStockPriceBuy
LT3481EDD#PBF 48
405.93 $
126.33 $
111.87 $
Buy Now
LT3481EMSE#PBF 32
54.28 $
25.70 $
18.55 $
Buy Now
LT3481IDD#TRA1PBF 1318
4778.12 $
2318.41 $
111.60 $
Buy Now
LT3481IMSE#PBF 26
54.88 $
26.50 $
19.75 $
Buy Now

TME Electronic Components

ProductStockPriceBuy
LT3481EMSE#PBF 23
17.74 $
37.35 $
106.16 $
255.59 $
Buy Now

ComS.I.T.

ProductStockPriceBuy
LT3481EMSEPBF 50
LT3481EMSETRPBF 555

element14 Asia-Pacific

ProductStockPriceBuy
LT3481IDD#PBF 34
19.77 $
256.94 $
1005.59 $
Buy Now
LT3481IMSE#PBF 388
19.77 $
256.94 $
1005.59 $
Buy Now
LT3481EMSE#PBF 57
18.13 $
255.78 $
1004.76 $
Buy Now

Farnell element14

ProductStockPriceBuy
LT3481HDD#PBF 86
13.66 GBP
253.23 GBP
1003.17 GBP
Buy Now
LT3481IDD#PBF 34
15.86 GBP
253.82 GBP
1003.29 GBP
Buy Now
LT3481IMSE#PBF 388
16.33 GBP
105.80 GBP
254.12 GBP
503.98 GBP
1003.85 GBP
Buy Now
LT3481EDD#PBF 2
15.27 GBP
104.78 GBP
253.40 GBP
503.30 GBP
1003.19 GBP
Buy Now
LT3481EMSE#PBF 67
15.27 GBP
104.78 GBP
253.40 GBP
503.29 GBP
1003.19 GBP
Buy Now

Chip1Stop

ProductStockPriceBuy
LT3481EMSE#PBF 60
504.53 $
106.44 $
17.06 $
Buy Now
LT3481IMSE#PBF 116
1004.74 $
505.16 $
110.20 $
Buy Now

RS Components

ProductStockPriceBuy
LT3481IDD#PBF 12
65.64 GBP
305.23 GBP
614.82 GBP
Buy Now
LT3481EMSE#PBF 19
15.73 GBP
105.16 GBP
254.59 GBP
Buy Now
LT3481EMSE#PBF 292
105.16 GBP
254.59 GBP
Buy Now
LT3481IMSE#PBF 44
105.89 GBP
255.02 GBP
Buy Now
LT3481EDD#PBF 22
65.02 GBP
304.42 GBP
613.82 GBP
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
0Results
Module
Fresh Search
Replacement Search with
0% tolerance (0)
10% tolerance (0)
25% tolerance (0)
50% tolerance (0)
add to Compare
Last Tweets
Meet us at the Embedded Show in Nuremberg 27-28.2.
Meet us at this weeks PCIM tradeshow in Nuremberg, Tue+Wed, Details under info@dcdcselector.com
With the help of #OEMsecrets we show for all Selectors and products worldwide distributor inventory and prices. https://t.co/udaDPmshky
Feedback
ajax-loader.gif
Loading. Please wait.