LT3682 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

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
findchips.com

Available Distributors with stock: 6

ARROW-NAC (2)

ProductStockPriceBuy
LT3682EDD#PBF308
14.22 USD
1003.58 USD
Buy Now
LT3682IDD#PBF403
14.64 USD
1003.95 USD
Buy Now

Chip-One-Stop (1)

ProductStockPriceBuy
LT3682EDD#PBF378
16.56 USD
105.52 USD
255.45 USD
505.20 USD
1005.08 USD
2004.85 USD
Buy Now

DIGI-KEY (2)

ProductStockPriceBuy
LT3682EDD#PBF1063
16.31 USD
254.22 USD
1003.58 USD
Buy Now
LT3682IDD#PBF375
16.53 USD
254.64 USD
1003.95 USD
Buy Now
LT3682EDD#TRPBF0
25003.68 USD
Buy Now
LT3682IDD#TRPBF0
25004.05 USD
Buy Now

Element14 (2)

ProductStockPriceBuy
LT3682EDD#PBF203
110.09 USD
256.75 USD
1005.72 USD
Buy Now
LT3682IDD#PBF35
110.44 USD
257.42 USD
1006.32 USD
Buy Now

FARNELL-ELEMENT14 (2)

ProductStockPriceBuy
LT3682EDD#PBF251Buy Now
LT3682IDD#PBF35Buy Now

RS-COMPONENTS (1)

ProductStockPriceBuy
LT3682EDD#PBF368Buy Now

Available Distributors without stock: 1

NEWARK (0)

ProductStockPriceBuy
LT3682EDD#PBF0
16.30 USD
254.23 USD
1003.58 USD
Buy Now
LT3682EDD#TRPBF0
16.12 USD
25004.39 USD
Buy Now
LT3682IDD#PBF0
14.11 USD
Buy Now
LT3682IDD#TRPBF0
16.73 USD
25004.83 USD
Buy Now

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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