LT3980 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LT3980 is a 58.00 V non-sync Buck Converter from with 2.00 A output current. The maximum 58.00 V input voltage can be regulated down into a 0.79 V to 56.00 V output voltage.

It requires are a typical inductor size of 10.00 µH, a typical external component count of 10 and achieves a peak efficiency of 86 %. Further LT3980 characteristics are a adjustable 1070 kHz switching frequency and 2 available package option(s): MSOP-16 DFN-14 .

For the LT3980 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. 58.00 V
I-OUT? 2.00 A
V-OUT min. 0.79 V
V-OUT max. 56.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 1070 kHz
Frequency adjustable
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 100 kHz
Frequency adj./ ext.clock max 2400 kHz
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK yes
Quiescent current max. 160 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 10.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 86 %
Component count min. 10
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT
MSOP MSOP-16
QFN/DFN DFN-14
SO/SOIC
SOP
DIP
TO
DDPAK

LT3980 Datasheet

Link to the most up-to-date LT3980 datasheet and the product page for EVM, tools and support information.

LT3980

LT3980 Sample stock and distributor price breaks

LT3980 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 7

ARROW-NAC (6)

ProductStockPriceBuy
LT3980EDE#TRPBF684
14.36 USD
Buy Now
LT3980IMSE#PBF512
15.97 USD
1005.08 USD
Buy Now
LT3980HMSE#PBF1012
16.33 USD
1005.38 USD
Buy Now
LT3980IDE#PBF127
15.97 USD
1005.08 USD
Buy Now
LT3980EDE#PBF3217
15.07 USD
1004.31 USD
Buy Now
LT3980EMSE#PBF1614
15.07 USD
1004.31 USD
Buy Now

Chip-One-Stop (6)

ProductStockPriceBuy
LT3980EDE#PBF91
16.49 USD
104.57 USD
504.56 USD
Buy Now
LT3980EDE#TRPBF2500
25004.70 USD
Buy Now
LT3980EMSE#PBF40
15.87 USD
104.14 USD
374.11 USD
Buy Now
LT3980EMSE#PBF2442
18.35 USD
57.13 USD
106.96 USD
506.56 USD
1006.19 USD
2006.05 USD
Buy Now
LT3980HMSE#PBF195
110.20 USD
58.75 USD
108.55 USD
508.06 USD
1007.60 USD
Buy Now
LT3980IDE#PBF477
19.66 USD
58.26 USD
108.06 USD
507.60 USD
1007.16 USD
2007.00 USD
Buy Now

DIGI-KEY (4)

ProductStockPriceBuy
LT3980EDE#PBF912
17.59 USD
255.07 USD
1004.31 USD
Buy Now
LT3980IDE#PBF361
18.92 USD
255.97 USD
1005.08 USD
Buy Now
LT3980HMSE#PBF951
19.45 USD
256.33 USD
1005.38 USD
Buy Now
LT3980IMSE#PBF168
18.92 USD
255.97 USD
1005.08 USD
Buy Now
LT3980EMSE#PBF0
17.59 USD
255.07 USD
1004.31 USD
Buy Now
LT3980EDE#TRPBF0
25004.41 USD
Buy Now
LT3980EMSE#TRPBF0
25004.41 USD
Buy Now
LT3980IDE#TRPBF0
25005.18 USD
Buy Now
LT3980IMSE#TRPBF0
25005.18 USD
Buy Now
LT3980HMSE#TRPBF0
25005.48 USD
Buy Now

Element14 (3)

ProductStockPriceBuy
LT3980EMSE#PBF33
112.05 USD
258.05 USD
1006.84 USD
Buy Now
LT3980HMSE#PBF105
114.99 USD
2510.05 USD
1008.54 USD
Buy Now
LT3980IMSE#PBF19
114.16 USD
259.47 USD
1008.06 USD
Buy Now

FARNELL-ELEMENT14 (3)

ProductStockPriceBuy
LT3980EMSE#PBF107Buy Now
LT3980HMSE#PBF105Buy Now
LT3980IMSE#PBF19Buy Now

NEWARK (1)

ProductStockPriceBuy
LT3980EDE#PBF0
17.59 USD
255.09 USD
1004.31 USD
Buy Now
LT3980EDE#TRPBF0
17.36 USD
25005.28 USD
Buy Now
LT3980EMSE#PBF0
17.59 USD
255.09 USD
1004.31 USD
Buy Now
LT3980EMSE#TRPBF0
17.36 USD
25005.28 USD
Buy Now
LT3980HMSE#PBF47
19.47 USD
256.35 USD
1005.38 USD
Buy Now
LT3980HMSE#TRPBF0
19.18 USD
25006.59 USD
Buy Now
LT3980IMSE#PBF0
18.94 USD
256.00 USD
1005.08 USD
Buy Now

RS-COMPONENTS (3)

ProductStockPriceBuy
LT3980EMSE#PBF37Buy Now
LT3980IDE#PBF97Buy Now
LT3980IMSE#PBF38Buy Now

Available Distributors with stock: 0

no online Distributor with LT3980 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3980. Optional, compare LT3980 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
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% A8582 A8582 product overviewA8582 product overview Allegro TSSOP-16
25% A8584 A8584 product overviewA8584 product overview Allegro TSSOP-16
25% TPS54140A TPS54140A product overviewTPS54140A product overview Texas Instruments SON-10, MSOP-10
25% TPS54240 TPS54240 product overviewTPS54240 product overview Texas Instruments SON-10, MSOP-10
25% TPS54240-Q1 TPS54240-Q1 product overviewTPS54240-Q1 product overview Texas Instruments SON-10, MSOP-10
25% TPS54262-Q1 TPS54262-Q1 product overviewTPS54262-Q1 product overview Texas Instruments HTSSOP-20
25% TPS54362-Q1 TPS54362-Q1 product overviewTPS54362-Q1 product overview Texas Instruments HTSSOP-20
50% LT3480 LT3480 product overviewLT3480 product overview Linear Technology DFN-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% 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 LT3980.

V-IN max. 58 V, I-OUT 2 A, V-OUT min. 0.79 V, Frequency typ. 1070 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025001 1.2 2.6 3.0 36.00 2.8 x 2.8 x 3
74404024010 1.0 2.2 2.6 37.00 2.5 x 2 x 1.2
74404032010 1.0 2.2 3.0 33.00 3 x 3 x 1.5
74404041010 1.0 2.5 3.4 41.00 4 x 4 x 1.2
74404042010 1.0 3.2 4.8 27.00 4 x 4 x 1.8
74404042015 1.5 3.0 4.3 31.00 4 x 4 x 1.8
74404052015 1.5 3.3 4.9 25.70 5 x 5 x 2
744042001 1.0 2.7 2.6 20.00 4.8 x 4.8 x 2
7440430012 1.2 3.1 2.8 15.00 4.8 x 4.8 x 3
7440520012 1.2 3.0 3.5 20.00 5.8 x 5.8 x 2
744062001 1.0 4.8 4.6 10.00 6.8 x 6.8 x 2.5
7440620015 1.5 4.3 4.0 10.00 6.8 x 6.8 x 2.5
7440680010 1.0 2.8 3.3 32.00 8 x 8 x 1.2
7440690010 1.0 3.6 3.8 21.00 8 x 8 x 1.5
7440690016 1.6 3.1 3.3 29.00 8 x 8 x 1.5
7440700012 1.2 4.8 4.2 12.50 8 x 8 x 2
74437321015 1.5 3.0 4.0 55.00 4.45 x 4.06 x 1.2
74438323010 1.0 2.5 4.0 63.00 2.5 x 2 x 1
74438324010 1.0 2.8 4.9 49.00 2.5 x 2 x 1.2
74438324012 1.2 2.4 4.5 67.00 2.5 x 2 x 1.2
74438324015 1.5 2.2 3.7 82.00 2.5 x 2 x 1.2
74438335010 1.0 2.7 4.5 39.00 3 x 3 x 1.5
74438336010 1.0 4.0 5.0 26.00 3 x 3 x 2
74438336012 1.2 3.9 4.8 30.00 3 x 3 x 2
74438336015 1.5 3.7 4.5 33.00 3 x 3 x 2
7447785001 1.0 3.5 4.5 31.00 5.9 x 6.2 x 3.3
74479276210 1.0 2.0 2.5 65.00 2 x 1.6 x 1
74479276210C 1.0 2.1 3.1 53.00 2 x 1.25 x 1
74479287210 1.0 2.4 4.0 55.00 2.5 x 2 x 1
74479288210 1.0 2.4 4.2 40.00 2.5 x 2 x 1.2
74479298210 1.0 2.5 4.0 45.00 3.2 x 2.5 x 1
74479899210 1.0 2.3 2.5 50.00 3.2 x 2.6 x 1.2
78438323010 1.0 2.5 4.0 63.00 2.5 x 2 x 1
78438335010 1.0 2.7 4.5 39.00 3 x 3 x 1.5
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