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: 8

Chip One Stop (9)

ProductStockPriceBuy
LT3980EDE#PBF129
18.31 USD
105.34 USD
504.73 USD
Buy Now
LT3980EDE#PBF5678
15.29 USD
1005.05 USD
Buy Now
LT3980EDE#TRPBF609
1005.15 USD
Buy Now
LT3980EMSE#PBF16
17.89 USD
107.57 USD
Buy Now
LT3980EMSE#PBF741
15.29 USD
1005.05 USD
Buy Now
LT3980HMSE#PBF907
16.59 USD
1006.29 USD
Buy Now
LT3980IDE#PBF264
16.22 USD
1005.93 USD
Buy Now
LT3980IMSE#PBF377
16.22 USD
1005.93 USD
Buy Now
LT3980IMSE#PBF377
16.22 USD
1005.93 USD
Buy Now

Conrad COM (1)

ProductStockPriceBuy
LT3980EDE#PBF23Buy Now

Conrad UK (1)

ProductStockPriceBuy
LT3980EDE#PBF23Buy Now

Digi-Key (7)

ProductStockPriceBuy
LT3980EMSE#PBF1959
17.74 USD
255.17 USD
1004.40 USD
Buy Now
LT3980EDE#PBF1709
17.74 USD
255.17 USD
1004.40 USD
Buy Now
LT3980IDE#PBF837
19.10 USD
256.09 USD
1005.18 USD
Buy Now
LT3980IMSE#PBF141
19.10 USD
256.09 USD
1005.18 USD
Buy Now
LT3980HMSE#PBF2914
19.64 USD
256.46 USD
1005.49 USD
Buy Now
LT3980EMSE#TRPBF0
25004.50 USD
Buy Now
LT3980EMSE#TRPBF644
18.81 USD
257.87 USD
1005.40 USD
2504.95 USD
Buy Now
LT3980EMSE#TRPBF644
18.81 USD
257.87 USD
1005.40 USD
2504.95 USD
Buy Now
LT3980EDE#TRPBF0
25004.50 USD
Buy Now
LT3980IDE#TRPBF0
25005.28 USD
Buy Now
LT3980IMSE#TRPBF0
25005.28 USD
Buy Now
LT3980HMSE#TRPBF0
25005.59 USD
Buy Now

Element14 (3)

ProductStockPriceBuy
LT3980EMSE#PBF278
112.07 USD
258.07 USD
1006.86 USD
Buy Now
LT3980HMSE#PBF88
115.04 USD
2510.07 USD
1008.56 USD
Buy Now
LT3980IMSE#PBF3
114.19 USD
259.50 USD
1008.08 USD
Buy Now

Farnell Element14 (3)

ProductStockPriceBuy
LT3980EMSE#PBF319Buy Now
LT3980HMSE#PBF88Buy Now
LT3980IMSE#PBF3Buy Now

Newark Electronics (1)

ProductStockPriceBuy
LT3980HMSE#PBF42
19.47 USD
256.35 USD
1005.38 USD
Buy Now

RS Components (3)

ProductStockPriceBuy
LT3980EMSE#PBF146Buy Now
LT3980IDE#PBF97Buy Now
LT3980IMSE#PBF37Buy Now

Available Distributors without stock: 1

TTI (0)

ProductStockPriceBuy
ZW-03-09-L-T-398-098
AMERICAS0.00 USD
Buy Now

Available Distributors with stock: 10

Arrow Electronics

ProductStockPriceBuy
LT3980EDE#PBF 5678
15.07 $
1004.31 $
Buy Now
LT3980HMSE#PBF 907
16.33 $
1005.38 $
Buy Now
LT3980EMSE#PBF 741
15.07 $
1004.31 $
Buy Now
LT3980EDE#TRPBF 609
1004.41 $
Buy Now
LT3980IMSE#PBF 557
15.97 $
1005.08 $
Buy Now
LT3980IMSE#PBF 377
15.97 $
1005.08 $
Buy Now
LT3980IDE#PBF 264
15.97 $
1005.08 $
Buy Now
LT3980HMSE#PBF 0
16.33 $
1005.38 $
Buy Now
LT3980EDE#TRPBF 0
1004.41 $
Buy Now
LT3980EDE#TRPBF 0
1004.41 $
Buy Now
LT3980IDE#PBF 0
15.97 $
1005.08 $
Buy Now
LT3980EMSE#TRPBF 0
1004.41 $
Buy Now
LT3980HMSE#TRPBF 0
1005.48 $
Buy Now
LT3980IMSE#TRPBF 0
1005.18 $
Buy Now
LT3980IDE#TRPBF 0
1005.18 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT3980HMSE#PBF 2914
1004.41 €
255.19 €
17.75 €
Buy Now
LT3980EMSE#PBF 1959
1003.54 €
254.16 €
16.23 €
Buy Now
LT3980EDE#PBF 1709
1003.54 €
254.16 €
16.23 €
Buy Now
LT3980IDE#PBF 837
1004.17 €
254.90 €
17.32 €
Buy Now
LT3980EMSE#TRPBF 644
2503.98 €
1004.34 €
256.33 €
17.09 €
Buy Now
LT3980EMSE#TRPBF 644
2503.98 €
1004.34 €
256.33 €
17.09 €
Buy Now
LT3980IMSE#PBF 141
1004.17 €
254.90 €
17.32 €
Buy Now
LT3980EMSE#TRPBF 0
25003.62 €
Buy Now
LT3980EDE#TRPBF 0
25003.62 €
Buy Now
LT3980IDE#TRPBF 0
25004.25 €
Buy Now
LT3980IMSE#TRPBF 0
25004.25 €
Buy Now
LT3980HMSE#TRPBF 0
25004.50 €
Buy Now
show stock=0hide stock=0

Newark element14

ProductStockPriceBuy
ZW-03-09-L-T-398-098 0
10.81 $
277780.71 $
555560.66 $
Buy Now
LT3980HMSE#PBF 42
19.47 $
256.35 $
1005.38 $
Buy Now
show stock=0hide stock=0

Mouser Electronics

ProductStockPriceBuy
LT3980IDE#PBF 182
19.11 $
108.35 $
256.09 $
1005.18 $
Buy Now
LT3980EDE#PBF 15
17.75 $
107.11 $
255.17 $
1004.40 $
Buy Now
LT3980EMSE#PBF 0
17.75 $
107.11 $
255.17 $
1004.40 $
Buy Now
LT3980HMSE#PBF 0
19.65 $
108.85 $
256.46 $
1005.49 $
Buy Now
LT3980EMSE#TRPBF 0
18.82 $
108.19 $
257.87 $
1005.40 $
2504.95 $
Buy Now
LT3980EDE#TRPBF 0
18.82 $
108.19 $
257.87 $
1005.40 $
2504.95 $
Buy Now
LT3980IMSE#PBF 0
19.11 $
108.35 $
256.09 $
1005.18 $
Buy Now
LT3980IMSE#TRPBF 0
110.34 $
109.60 $
259.23 $
1006.34 $
2505.81 $
Buy Now
LT3980IDE#TRPBF 0
110.34 $
109.60 $
259.23 $
1006.34 $
2505.81 $
Buy Now
LT3980HMSE#TRPBF 0
110.95 $
1010.16 $
259.76 $
1006.71 $
2506.15 $
Buy Now
LT3980HMSE#TR 0 Buy Now
show stock=0hide stock=0

Quest Components

ProductStockPriceBuy
LT3980EMSE#PBF 5
48.75 $
210.00 $
115.00 $
Buy Now
LT3980IMSE#PBF 324
2418.06 $
1178.34 $
111.12 $
Buy Now

ComS.I.T.

ProductStockPriceBuy
LT3980IDEPBF 33
LT3980IDEPBF 33

element14 Asia-Pacific

ProductStockPriceBuy
LT3980HMSE#PBF 88
112.03 $
258.06 $
1006.84 $
Buy Now
LT3980EMSE#PBF 278
19.66 $
256.46 $
1005.48 $
Buy Now
LT3980IMSE#PBF 3
111.35 $
257.60 $
1006.46 $
Buy Now

Farnell element14

ProductStockPriceBuy
LT3980HMSE#PBF 88
17.07 GBP
254.40 GBP
1003.94 GBP
Buy Now
LT3980IMSE#PBF 3
17.38 GBP
106.82 GBP
256.15 GBP
504.56 GBP
1004.35 GBP
Buy Now
LT3980EMSE#PBF 319
16.33 GBP
105.80 GBP
255.34 GBP
503.88 GBP
1003.76 GBP
Buy Now

Chip1Stop

ProductStockPriceBuy
LT3980IDE#PBF 264
1005.93 $
16.22 $
Buy Now
LT3980HMSE#PBF 907
1006.29 $
16.59 $
Buy Now
LT3980EDE#TRPBF 609
1005.15 $
Buy Now
LT3980IMSE#PBF 377
1005.93 $
16.22 $
Buy Now
LT3980EDE#PBF 129
504.73 $
105.34 $
18.31 $
Buy Now
LT3980EMSE#PBF 741
1005.05 $
15.29 $
Buy Now
LT3980EMSE#PBF 16
107.57 $
17.89 $
Buy Now

RS Components

ProductStockPriceBuy
LT3980IDE#PBF 97
106.42 GBP
255.73 GBP
505.40 GBP
755.32 GBP
Buy Now
LT3980EMSE#PBF 146
105.45 GBP
255.39 GBP
505.32 GBP
755.26 GBP
Buy Now
LT3980IMSE#PBF 37
106.42 GBP
256.32 GBP
506.24 GBP
756.18 GBP
Buy Now

Available Distributors without stock: 1

Avnet

ProductStockPriceBuy
ZW-09-09-L-T-398-098 0
12.49 $
102.49 $
252.39 $
502.39 $
1002.19 $
5002.09 $
10001.69 $
Buy Now
ZW-03-09-L-T-398-098 0
10.86 $
100.84 $
250.82 $
500.80 $
1000.75 $
5000.71 $
10000.67 $
Buy Now

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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