LT3653 Buck Converter overview

Description

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Category
Sub-Category

LT3653 is a 30.00 V non-sync Buck Converter from with 1.20 A output current. The maximum 30.00 V input voltage can be regulated down into a 5.00 V to 5.00 V output voltage.

It requires are a typical inductor size of 4.70 µH, a typical external component count of 6 and achieves a peak efficiency of 88 %. Further LT3653 characteristics are a fixed 1500 kHz switching frequency and 1 available package option(s): DFN-8 .

For the LT3653 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. 7.50 V
V-IN max. 30.00 V
I-OUT? 1.20 A
V-OUT min. 5.00 V
V-OUT max. 5.00 V
V-OUT 5.000 V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 1500 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart no
Softstart adjustable no
Tracking yes
PG/Power OK no
Quiescent current max. 3400 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 4.70 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 88 %
Component count min. 6
current limit adjustable yes
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN DFN-8
SO/SOIC
SOP
DIP
TO
DDPAK

LT3653 Datasheet

Link to the most up-to-date LT3653 datasheet and the product page for EVM, tools and support information.

LT3653

LT3653 Sample stock and distributor price breaks

LT3653 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 1

DIGI-KEY (2)

ProductStockPriceBuy
LT3653EDCB#TRMPBF0
5003.04 USD
Buy Now
LT3653EDCB#TRMPBF40
16.11 USD
255.45 USD
Buy Now
LT3653EDCB#TRMPBF0
10.00 USD
Buy Now
LT3653IDCB#TRMPBF0
5003.50 USD
Buy Now
LT3653IDCB#TRMPBF74
16.98 USD
256.23 USD
Buy Now
LT3653IDCB#TRMPBF0
10.00 USD
Buy Now
LT3653EDCB#TRPBF0
25003.04 USD
Buy Now
LT3653IDCB#TRPBF0
25003.50 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LT3653 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3653. Optional, compare LT3653 side-by-side with other Buck Converter via the Comparison function.

no alternatives found

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3653.

V-IN max. 30 V, I-OUT 1.2 A, V-OUT min. 5 V, Frequency typ. 1500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025004 4.7 1.4 1.7 100.00 2.8 x 2.8 x 3
74404041047 4.7 1.6 1.9 91.00 4 x 4 x 1.2
74404042047 4.7 1.7 2.2 70.00 4 x 4 x 1.8
74404042068 6.8 1.5 1.8 98.00 4 x 4 x 1.8
74404052047 4.7 2.3 2.7 55.90 5 x 5 x 2
74404052056 5.6 2.1 2.6 67.50 5 x 5 x 2
74404052068 6.8 1.9 2.4 82.70 5 x 5 x 2
74404052075 7.5 1.7 2.1 96.80 5 x 5 x 2
74404063068 6.8 2.4 2.8 47.00 6 x 6 x 2.8
744042004 4.7 1.7 1.7 70.00 4.8 x 4.8 x 2
744043004 4.7 1.6 1.7 50.00 4.8 x 4.8 x 3
744045004 4.7 1.2 2.0 120.00 4.5 x 3.2 x 2.9
744052005 5.0 1.7 1.8 50.00 5.8 x 5.8 x 2
744052006 6.2 1.5 1.6 70.00 5.8 x 5.8 x 2
744052007 7.5 1.4 1.5 70.00 5.8 x 5.8 x 2
7440530047 4.7 2.4 2.0 30.00 5.8 x 5.8 x 3
744053005 5.3 2.3 1.9 30.00 5.8 x 5.8 x 3
744053006 6.2 2.2 1.7 40.00 5.8 x 5.8 x 3
744062005 5.0 2.2 2.0 40.00 6.8 x 6.8 x 2.5
744062006 6.2 1.9 1.8 40.00 6.8 x 6.8 x 2.5
744062007 7.5 1.7 1.6 50.00 6.8 x 6.8 x 2.5
7440680047 4.7 1.9 1.6 72.00 8 x 8 x 1.2
7440690047 4.7 2.2 1.8 56.00 8 x 8 x 1.5
7440690068 6.8 1.8 1.7 88.00 8 x 8 x 1.5
7440700047 4.7 3.0 2.2 37.00 8 x 8 x 2
7440700056 5.6 2.6 2.0 47.00 8 x 8 x 2
7440700068 6.8 2.4 1.8 56.00 8 x 8 x 2
74408941050 5.0 1.4 2.5 140.00 4.8 x 4.8 x 2.1
74408942047 4.7 1.6 2.9 86.80 4.8 x 4.8 x 3.1
74408942068 6.8 1.5 2.4 110.00 4.8 x 4.8 x 3.1
74408943068 6.8 2.0 2.7 51.00 4.8 x 4.8 x 4.1
74437321056 5.6 1.6 2.7 180.00 4.45 x 4.06 x 1.2
74437321068 6.8 1.3 2.4 300.00 4.45 x 4.06 x 1.2
74438335047 4.7 1.5 2.8 141.00 3 x 3 x 1.5
74438336068 6.8 1.6 2.9 168.00 3 x 3 x 2
7447462068 6.8 3.3 3.0 27.00 5.5 x 5.5 x 8.5
744773047 4.7 1.8 2.5 59.00 4 x 4.5 x 3.5
744773056 5.6 1.6 2.4 69.00 4 x 4.5 x 3.5
744773068 6.8 1.5 2.1 76.00 4 x 4.5 x 3.5
7447785004 4.7 2.2 2.5 60.00 5.9 x 6.2 x 3.3
7447785006 6.8 2.3 2.0 79.00 5.9 x 6.2 x 3.3
7447786004 4.7 2.8 2.8 57.00 5.9 x 6.2 x 5.1
7447786006 6.8 2.5 2.3 62.00 5.9 x 6.2 x 5.1
7447789006 6.8 2.5 2.8 41.50 7.3 x 7.3 x 3.5
744779068 6.8 2.2 2.8 27.00 6 x 6 x 6.5
744787068 6.8 3.0 3.0 27.00 7.8 x 7 x 5
78438335047 4.7 1.5 2.8 141.00 3 x 3 x 1.5
784773047 4.7 1.8 2.5 59.00 4 x 4.5 x 3.5
784773056 5.6 1.6 2.4 69.00 4 x 4.5 x 3.5
784773068 6.8 1.5 2.1 76.00 4 x 4.5 x 3.5
784778068 6.8 2.3 2.5 79.00 7.3 x 7.3 x 3.5
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