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.

OEMSecrets.com
findchips.com

Available Distributors with stock: 5

Chip One Stop (5)

ProductStockPriceBuy
LT3663EDCB#TRPBF5000
25004.26 USD
Buy Now
LT3663EMS8E#PBF1690
9504.67 USD
Buy Now
LT3663HMS8E-3.3#PBF690
18.37 USD
1006.33 USD
Buy Now
LT3663IMS8E-3.3#PBF50
17.73 USD
Buy Now
LT3663IMS8E-5#PBF194
17.73 USD
1005.85 USD
Buy Now

Digi-Key (13)

ProductStockPriceBuy
LT3663EDCB#TRMPBF500
5003.10 USD
Buy Now
LT3663EDCB#TRMPBF724
16.23 USD
255.56 USD
1003.72 USD
2503.41 USD
Buy Now
LT3663EDCB#TRMPBF724
16.23 USD
255.56 USD
1003.72 USD
2503.41 USD
Buy Now
LT3663EMS8E#PBF242
15.66 USD
253.78 USD
1003.22 USD
Buy Now
LT3663EMS8E-5#PBF1308
15.66 USD
253.78 USD
1003.22 USD
Buy Now
LT3663IMS8E#PBF269
16.66 USD
254.46 USD
1003.79 USD
Buy Now
LT3663EMS8E-3.3#PBF260
15.66 USD
253.78 USD
1003.22 USD
Buy Now
LT3663IMS8E-5#PBF399
16.66 USD
254.46 USD
1003.79 USD
Buy Now
LT3663IMS8E-3.3#PBF64
16.66 USD
254.46 USD
1003.79 USD
Buy Now
LT3663HMS8E-3.3#PBF42
17.20 USD
254.82 USD
1004.10 USD
Buy Now
DC1570A-A5
176.50 USD
Buy Now
DC1570A-B5
176.50 USD
Buy Now
DC1419A2
176.50 USD
Buy Now
LT3663EDCB#TRPBF0
25003.10 USD
Buy Now
LT3663EDCB-3.3#TRPBF0
25003.10 USD
Buy Now
LT3663EDCB-3.3#TRMPBF0
5003.10 USD
Buy Now
LT3663EMS8E#TRPBF0
25003.33 USD
Buy Now
LT3663EMS8E-3.3#TRPBF0
25003.33 USD
Buy Now
LT3663EMS8E-5#TRPBF0
25003.33 USD
Buy Now
LT3663IDCB#TRPBF0
25003.64 USD
Buy Now
LT3663IDCB#TRMPBF0
5003.64 USD
Buy Now
LT3663IMS8E#TRPBF0
25003.90 USD
Buy Now
LT3663IMS8E-3.3#TRPBF0
25003.90 USD
Buy Now
LT3663IMS8E-5#TRPBF0
25003.90 USD
Buy Now
LT3663HMS8E-5#PBF0
2004.10 USD
Buy Now

Element14 (1)

ProductStockPriceBuy
LT3663EMS8E#PBF111
18.55 USD
255.72 USD
1004.87 USD
Buy Now

Farnell Element14 (1)

ProductStockPriceBuy
LT3663EMS8E#PBF121Buy Now

RS Components (1)

ProductStockPriceBuy
LT3663EMS8E#PBF61Buy Now

Available Distributors without stock: 1

Newark Electronics (0)

ProductStockPriceBuy
LT3663EDCB-3.3#PBF0
16.34 USD
1005.19 USD
2504.75 USD
5004.41 USD
10004.15 USD
Buy Now
LT3663EDCB-3.3#TRMPBF0
16.34 USD
1005.19 USD
2504.75 USD
5004.41 USD
10004.15 USD
Buy Now
LT3663EDCB-3.3#TRPBF0
16.24 USD
1005.10 USD
2504.67 USD
5004.34 USD
10004.08 USD
Buy Now
LT3663EMS8E-5#PBF0
15.57 USD
253.73 USD
1003.16 USD
Buy Now
LT3663EMS8E#PBF0
15.57 USD
253.73 USD
1003.16 USD
Buy Now
LT3663HMS8E-5#PBF0
17.24 USD
254.83 USD
504.02 USD
Buy Now

Available Distributors with stock: 6

Arrow Electronics

ProductStockPriceBuy
LT3663EDCB#TRPBF 5000
25003.04 $
Buy Now
LT3663EMS8E#PBF 1690
9503.16 $
Buy Now
LT3663HMS8E-3.3#PBF 690
14.73 $
1004.02 $
Buy Now
LT3663IMS8E-5#PBF 194
14.37 $
1003.72 $
Buy Now
LT3663IMS8E-3.3#PBF 50
14.37 $
1003.72 $
Buy Now
LT3663EDCB#TRMPBF 5
13.57 $
1003.04 $
Buy Now

Digi-Key

ProductStockPriceBuy
LT3663EMS8E-5#PBF 1308
1002.72 €
253.19 €
14.77 €
Buy Now
LT3663EDCB#TRMPBF 724
2502.88 €
1003.14 €
254.69 €
15.25 €
Buy Now
LT3663EDCB#TRMPBF 724
2502.88 €
1003.14 €
254.69 €
15.25 €
Buy Now
LT3663EDCB#TRMPBF 500
5002.61 €
Buy Now
LT3663IMS8E-5#PBF 399
1003.20 €
253.76 €
15.61 €
Buy Now
LT3663IMS8E#PBF 269
1003.20 €
253.76 €
15.61 €
Buy Now
LT3663EMS8E-3.3#PBF 260
1002.72 €
253.19 €
14.77 €
Buy Now
LT3663EMS8E#PBF 242
1002.72 €
253.19 €
14.77 €
Buy Now
LT3663IMS8E-3.3#PBF 64
1003.20 €
253.76 €
15.61 €
Buy Now
LT3663HMS8E-3.3#PBF 42
1003.46 €
254.07 €
16.07 €
Buy Now
DC1570A-A 5
164.81 €
Buy Now
DC1570A-B 5
164.81 €
Buy Now
DC1419A 2
164.81 €
Buy Now
LT3663EDCB#TRPBF 0
25002.61 €
Buy Now
LT3663EDCB-3.3#TRMPBF 0
5002.61 €
Buy Now
show stock=0hide stock=0

element14 Asia-Pacific

ProductStockPriceBuy
LT3663EMS8E#PBF 111
16.84 $
254.58 $
1003.89 $
Buy Now

Farnell element14

ProductStockPriceBuy
LT3663EMS8E#PBF 121
14.75 GBP
252.86 GBP
1002.58 GBP
Buy Now
LT3663EMS8E-3.3#PBF 0
14.80 GBP
252.90 GBP
1002.58 GBP
Buy Now
show stock=0hide stock=0

Chip1Stop

ProductStockPriceBuy
LT3663EDCB#TRPBF 5000
25004.26 $
Buy Now
LT3663IMS8E-5#PBF 194
17.73 $
1005.85 $
Buy Now
LT3663EMS8E#PBF 1690
9504.67 $
Buy Now
LT3663IMS8E-3.3#PBF 50
17.73 $
Buy Now
LT3663HMS8E-3.3#PBF 690
18.37 $
1006.33 $
Buy Now

RS Components

ProductStockPriceBuy
LT3663EMS8E#PBF 61
103.79 GBP
253.39 GBP
503.19 GBP
753.14 GBP
Buy Now

Available Distributors without stock: 1

Newark element14

ProductStockPriceBuy
LT3663EDCB-3.3#TRMPBF 0
16.34 $
1005.19 $
2504.75 $
5004.41 $
10004.00 $
Buy Now
LT3663EDCB-3.3#PBF 0
16.34 $
1005.19 $
2504.75 $
5004.41 $
10004.00 $
Buy Now
LT3663HMS8E-5#PBF 0
17.24 $
254.83 $
504.00 $
Buy Now
LT3663EDCB-3.3#TRPBF 0
16.24 $
1005.10 $
2504.67 $
5004.34 $
10004.00 $
Buy Now
LT3663EMS8E#PBF 0
15.57 $
253.73 $
1003.00 $
Buy Now
LT3663EMS8E-5#PBF 0
15.57 $
253.73 $
1003.00 $
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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