LT3682 Buck Converter overview

Description

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LT3682 is a 36.00 V non-sync Buck Converter from with 1.00 A output current. The maximum 36.00 V input voltage can be regulated down into a 0.80 V to 20.00 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 90 %. Further LT3682 characteristics are a adjustable 2200 kHz switching frequency and 1 available package option(s): DFN-12 .

For the LT3682 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? 1.00 A
V-OUT min. 0.80 V
V-OUT max. 20.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 2200 kHz
Frequency adjustable
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 250 kHz
Frequency adj./ ext.clock max 2200 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. 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 90 %
Component count min. 10
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN DFN-12
SO/SOIC
SOP
DIP
TO
DDPAK

LT3682 Datasheet

Link to the most up-to-date LT3682 datasheet and the product page for EVM, tools and support information.

LT3682

LT3682 Sample stock and distributor price breaks

LT3682 prices and online available distributors.

OEMSecrets.com
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Available Distributors with stock: 0

no online Distributor with LT3682 stock available

Available Distributors with stock: 0

no online Distributor with LT3682 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3682. Optional, compare LT3682 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% LT3480 LT3480 product overviewLT3480 product overview Linear Technology DFN-10, MSOP-10
0% LT3980 LT3980 product overviewLT3980 product overview Linear Technology DFN-14, MSOP-16
0% TPS54140A TPS54140A product overviewTPS54140A product overview Texas Instruments SON-10, MSOP-10
0% TPS57160-Q1 TPS57160-Q1 product overviewTPS57160-Q1 product overview Texas Instruments SON-10, MSOP-10
10% TPS54162-Q1 TPS54162-Q1 product overviewTPS54162-Q1 product overview Texas Instruments HTSSOP-20
50% TPS54040A TPS54040A product overviewTPS54040A product overview Texas Instruments SON-10, MSOP-10
50% TPS54040-Q1 TPS54040-Q1 product overviewTPS54040-Q1 product overview Texas Instruments SON-10, MSOP-10
50% TPS57060-Q1 TPS57060-Q1 product overviewTPS57060-Q1 product overview Texas Instruments SON-10, MSOP-10
50% MP2454 MP2454 product overviewMP2454 product overview MPS QFN-10, MSOP-10
50% MPQ2454 MPQ2454 product overviewMPQ2454 product overview MPS QFN-10, MSOP-10
50% MPQ2454-AEC1 MPQ2454-AEC1 product overviewMPQ2454-AEC1 product overview MPS QFN-10, MSOP-10

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3682.

V-IN max. 36 V, I-OUT 1 A, V-OUT min. 0.8 V, Frequency typ. 2200 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
744028001 1.0 1.8 1.5 65.00 2.8 x 2.8 x 1.2
744029001 1.0 2.2 1.6 45.00 2.8 x 2.8 x 1.5
744031001 1.5 1.8 1.6 40.00 3.8 x 3.8 x 1.8
744031010 1.0 2.0 1.6 26.00 3.8 x 3.8 x 1.8
74404024010 1.0 2.2 2.6 37.00 2.5 x 2 x 1.2
74404024015 1.5 1.9 2.4 65.00 2.5 x 2 x 1.2
74404032010 1.0 2.2 3.0 33.00 3 x 3 x 1.5
74404032015 1.5 2.0 2.3 40.00 3 x 3 x 1.5
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
74438321010 1.0 1.3 2.5 163.00 2.5 x 2 x 0.6
74438343015 1.5 1.3 3.0 150.00 2.5 x 1.6 x 0.6
74479262210 1.0 1.2 1.7 170.00 1.6 x 0.8 x 0.8
74479275210 1.0 1.8 2.1 69.00 2 x 1.25 x 1
74479276210 1.0 2.0 2.5 65.00 2 x 1.6 x 1
74479876210 1.0 1.5 1.5 70.00 2 x 1.6 x 1
74479889210 1.0 2.0 2.0 85.00 2.5 x 2 x 1.2
74479899210 1.0 2.3 2.5 50.00 3.2 x 2.6 x 1.2
74479976210 1.0 1.8 2.4 75.00 2 x 1.6 x 0.5
74479976215 1.5 1.6 1.9 100.00 2 x 1.6 x 0.5
78438321010 1.0 1.3 2.5 163.00 2.5 x 2 x 0.6
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