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: 9

ARROW-NAC (8)

ProductStockPriceBuy
LT3481HMSE#PBF194
15.93 USD
1005.04 USD
Buy Now
LT3481IDD#PBF639
7264.49 USD
Buy Now
LT3481HDD#PBF321
15.93 USD
1005.04 USD
Buy Now
LT3481IMSE#PBF442
15.57 USD
1004.49 USD
Buy Now
LT3481EMSE#PBF493
14.64 USD
1003.82 USD
Buy Now
LT3481EMSE#TRPBF2500
25003.87 USD
Buy Now
LT3481EMSE#TRPBF1950
13.87 USD
Buy Now
LT3481EDD#PBF581
14.64 USD
1003.82 USD
Buy Now

Chip-One-Stop (9)

ProductStockPriceBuy
LT3481EDD#PBF521
17.64 USD
56.52 USD
106.37 USD
506.01 USD
1005.66 USD
2005.53 USD
Buy Now
LT3481EMSE#PBF65
15.36 USD
103.78 USD
503.65 USD
Buy Now
LT3481EMSE#PBF5898
17.51 USD
56.42 USD
106.27 USD
505.91 USD
1005.57 USD
2005.44 USD
Buy Now
LT3481EMSE#TRPBF619
17.38 USD
106.34 USD
256.05 USD
505.54 USD
1004.74 USD
2004.52 USD
Buy Now
LT3481HDD#PBF321
19.02 USD
57.71 USD
107.53 USD
507.10 USD
1006.69 USD
2006.54 USD
Buy Now
LT3481HMSE#PBF224
19.02 USD
57.71 USD
107.53 USD
507.10 USD
1006.69 USD
2006.54 USD
Buy Now
LT3481IDD#PBF15
19.02 USD
57.70 USD
107.52 USD
Buy Now
LT3481IMSE#PBF116
17.06 USD
104.97 USD
504.80 USD
1004.72 USD
Buy Now
LT3481IMSE#PBF45
19.17 USD
57.83 USD
107.65 USD
Buy Now

DIGI-KEY (7)

ProductStockPriceBuy
LT3481EDD#PBF1120
16.53 USD
254.64 USD
1003.82 USD
Buy Now
LT3481IMSE#PBF649
17.84 USD
255.57 USD
1004.49 USD
Buy Now
LT3481IDD#PBF1064
17.84 USD
255.57 USD
1004.49 USD
Buy Now
LT3481HDD#PBF114
18.87 USD
255.93 USD
1005.04 USD
Buy Now
LT3481EMSE#TRPBF0
25003.92 USD
Buy Now
LT3481EMSE#TRPBF765
17.46 USD
256.66 USD
1004.70 USD
2504.31 USD
Buy Now
LT3481EMSE#TRPBF765
17.46 USD
256.66 USD
1004.70 USD
2504.31 USD
Buy Now
LT3481EMSE#PBF464
16.53 USD
254.64 USD
1003.82 USD
Buy Now
LT3481EDD#TRPBF0
25003.92 USD
Buy Now
LT3481IDD#TRPBF0
25004.59 USD
Buy Now
LT3481IMSE#TRPBF0
25004.59 USD
Buy Now
LT3481HMSE#PBF0
3005.04 USD
Buy Now
LT3481HDD#TRPBF0
25005.14 USD
Buy Now
LT3481HMSE#TRPBF0
25005.14 USD
Buy Now

Element14 (5)

ProductStockPriceBuy
LT3481EDD#PBF59
110.37 USD
257.36 USD
1006.06 USD
Buy Now
LT3481EMSE#PBF665
110.37 USD
257.36 USD
1006.06 USD
Buy Now
LT3481HDD#PBF101
114.07 USD
259.41 USD
1008.00 USD
Buy Now
LT3481IDD#PBF54
112.44 USD
258.84 USD
1007.13 USD
Buy Now
LT3481IMSE#PBF84
112.44 USD
258.84 USD
1007.13 USD
Buy Now

FARNELL-ELEMENT14 (5)

ProductStockPriceBuy
LT3481EDD#PBF59Buy Now
LT3481EMSE#PBF774Buy Now
LT3481HDD#PBF101Buy Now
LT3481IDD#PBF59Buy Now
LT3481IMSE#PBF93Buy Now

NEWARK (1)

ProductStockPriceBuy
LT3481EDD#PBF0
16.54 USD
254.63 USD
1003.82 USD
Buy Now
LT3481EDD#TRPBF0
16.73 USD
25004.83 USD
Buy Now
LT3481EMSE#PBF252
16.54 USD
254.63 USD
1003.82 USD
Buy Now
LT3481EMSE#TRPBF0
16.73 USD
25004.83 USD
Buy Now
LT3481HMSE#PBF0
18.87 USD
255.95 USD
1005.04 USD
Buy Now
LT3481IDD#PBF0
17.91 USD
255.30 USD
1004.49 USD
Buy Now
LT3481IMSE#PBF0
17.91 USD
255.30 USD
1004.49 USD
Buy Now
LT3481IMSE#TRPBF0
18.08 USD
25005.80 USD
Buy Now

RS-COMPONENTS (8)

ProductStockPriceBuy
LT3481EDD#PBF110Buy Now
LT3481EDD#PBF121Buy Now
LT3481EMSE#PBF10Buy Now
LT3481EMSE#PBF275Buy Now
LT3481EMSE#PBF50Buy Now
LT3481IDD#PBF115Buy Now
LT3481IMSE#PBF52Buy Now
LT3481IMSE#PBF50Buy Now

Reichelt Elektronik (1)

ProductStockPriceBuy
LT3481EMSE#PBF1Buy Now

TME (1)

ProductStockPriceBuy
LT3481EMSE#PBF36Buy Now

Available Distributors with stock: 0

no online Distributor with LT3481 stock available

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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