LT3980 Buck Converter overview

Description

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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
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Available Distributors with stock: 0

no online Distributor with LT3980 stock available

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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