LT3663-3.3 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LT3663-3.3 is a 36.00 V non-sync Buck Converter from with 1.20 A output current. The maximum 36.00 V input voltage can be regulated down into a 3.30 V to 3.30 V output voltage.

It requires are a typical inductor size of 6.80 µH, a typical external component count of 6 and achieves a peak efficiency of 86 %. Further LT3663-3.3 characteristics are a fixed 1500 kHz switching frequency and 1 available package option(s): DFN-8 .

For the LT3663-3.3 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. 36.00 V
I-OUT? 1.20 A
V-OUT min. 3.30 V
V-OUT max. 3.30 V
V-OUT 3.300 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 no
PG/Power OK no
Quiescent current max. 3200 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 150 °C
thermal shutdown typ.
Inductor size typ. 6.80 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 86 %
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

LT3663-3.3 Datasheet

Link to the most up-to-date LT3663-3.3 datasheet and the product page for EVM, tools and support information.

LT3663-3.3

LT3663-3.3 Sample stock and distributor price breaks

LT3663-3.3 prices and online available distributors.

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Available Distributors with stock: 0

no online Distributor with LT3663 stock available

Available Distributors with stock: 6

Farnell element14

ProductStockPriceBuy
LT3663EMS8E-3.3#PBF 16
15.92 €
1002.98 €
15.92 €
253.57 €
1002.98 €
Buy Now
LT3663EMS8E#PBF 6
15.78 €
1002.99 €
15.78 €
253.50 €
1002.99 €
Buy Now

RS Components

ProductStockPriceBuy
LT3663EMS8E#PBF 35
13.99 GBP
103.79 GBP
253.39 GBP
503.19 GBP
753.14 GBP
Buy Now

Conrad Electronic

ProductStockPriceBuy
LT3663EMS8E-5#PBF 99999999
16.97 €
106.63 €
Buy Now
LT3663IMS8E-5#PBF 99999999
18.20 €
107.79 €
Buy Now
LT3663EMS8E-3.3#PBF 99999999
16.97 €
106.63 €
Buy Now
LT3663EMS8E#PBF 99999999
16.97 €
106.63 €
Buy Now
LT3663IMS8E#PBF 99999999
18.20 €
107.79 €
Buy Now
LT3663HMS8E-3.3#PBF 99999999
18.86 €
108.41 €
Buy Now
LT3663EDCB#TRMPBF 99999999
17.67 €
107.29 €
Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
LT3663EMS8E-3.3#PBF 0
17.10 $
254.74 $
1004.04 $
Buy Now
LT3663EMS8E#PBF 254
17.10 $
254.74 $
1004.04 $
Buy Now
show stock=0hide stock=0

Newark element14

ProductStockPriceBuy
LT3663EMS8E-5#PBF 36
15.57 $
253.73 $
1003.16 $
Buy Now
LT3663HMS8E#PBF 0
17.08 $
254.75 $
1004.02 $
Buy Now
LT3663EDCB-3.3#TRMPBF 0
16.34 $
1005.19 $
2504.75 $
5004.41 $
10004.15 $
Buy Now
LT3663EMS8E#PBF 0
15.57 $
253.73 $
1003.16 $
Buy Now
LT3663HMS8E-5#PBF 0
17.08 $
254.75 $
1004.02 $
Buy Now
LT3663EDCB-3.3#TRPBF 0
16.24 $
1005.10 $
2504.67 $
5004.34 $
10004.08 $
Buy Now
LT3663EDCB-3.3#PBF 0
16.34 $
1005.19 $
2504.75 $
5004.41 $
10004.15 $
Buy Now
show stock=0hide stock=0

Chip1Stop

ProductStockPriceBuy
LT3663EDCB#TRMPBF 500
5004.24 $
Buy Now

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3663-3.3. Optional, compare LT3663-3.3 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 LT3663-3.3.

V-IN max. 36 V, I-OUT 1.2 A, V-OUT min. 3.3 V, Frequency typ. 1500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025003 3.3 1.5 1.8 85.00 2.8 x 2.8 x 3
744025004 4.7 1.4 1.7 100.00 2.8 x 2.8 x 3
74404032033 3.3 1.5 1.5 70.00 3 x 3 x 1.5
74404041033 3.3 1.8 2.1 69.00 4 x 4 x 1.2
74404041047 4.7 1.6 1.9 91.00 4 x 4 x 1.2
74404042033 3.3 2.0 2.9 55.00 4 x 4 x 1.8
74404042047 4.7 1.7 2.2 70.00 4 x 4 x 1.8
74404052033 3.3 2.6 3.0 42.20 5 x 5 x 2
74404052039 3.9 2.4 2.8 50.50 5 x 5 x 2
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
744042003 3.3 2.0 1.8 50.00 4.8 x 4.8 x 2
7440420039 3.9 1.8 1.7 60.00 4.8 x 4.8 x 2
744042004 4.7 1.7 1.7 70.00 4.8 x 4.8 x 2
744043003 3.3 2.2 1.8 30.00 4.8 x 4.8 x 3
7440430039 3.9 1.7 1.7 50.00 4.8 x 4.8 x 3
744043004 4.7 1.6 1.7 50.00 4.8 x 4.8 x 3
744045003 3.3 1.4 2.7 104.00 4.5 x 3.2 x 2.9
7440450039 3.9 1.3 2.5 112.00 4.5 x 3.2 x 2.9
744045004 4.7 1.2 2.0 120.00 4.5 x 3.2 x 2.9
7440520039 3.9 2.0 2.1 50.00 5.8 x 5.8 x 2
744052005 5.0 1.7 1.8 50.00 5.8 x 5.8 x 2
744053004 4.2 2.5 2.2 30.00 5.8 x 5.8 x 3
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
744062003 3.3 2.8 2.5 20.00 6.8 x 6.8 x 2.5
744062005 5.0 2.2 2.0 40.00 6.8 x 6.8 x 2.5
7440680033 3.3 2.0 1.8 61.00 8 x 8 x 1.2
7440680047 4.7 1.9 1.6 72.00 8 x 8 x 1.2
7440690033 3.3 2.6 2.3 42.00 8 x 8 x 1.5
7440690047 4.7 2.2 1.8 56.00 8 x 8 x 1.5
7440700033 3.3 3.2 2.6 30.00 8 x 8 x 2
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
74408941035 3.5 1.5 2.8 113.00 4.8 x 4.8 x 2.1
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
74437321056 5.6 1.6 2.7 180.00 4.45 x 4.06 x 1.2
74438323033 3.3 1.3 2.1 220.00 2.5 x 2 x 1
74438324033 3.3 1.3 2.6 226.00 2.5 x 2 x 1.2
74438335047 4.7 1.5 2.8 141.00 3 x 3 x 1.5
744773033 3.3 2.0 2.9 41.00 4 x 4.5 x 3.5
744773039 3.9 1.9 2.6 54.00 4 x 4.5 x 3.5
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
7447785003 3.3 2.8 3.0 43.00 5.9 x 6.2 x 3.3
7447785004 4.7 2.2 2.5 60.00 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
78438323033 3.3 1.3 2.1 220.00 2.5 x 2 x 1
78438335047 4.7 1.5 2.8 141.00 3 x 3 x 1.5
784773033 3.3 2.0 2.9 41.00 4 x 4.5 x 3.5
784773039 3.9 1.9 2.6 54.00 4 x 4.5 x 3.5
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
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