LT3990-5.0 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LT3990-5.0 is a 62.00 V sync Buck Converter from with 0.35 A output current. The maximum 62.00 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 33.00 µH, a typical external component count of 5 and achieves a peak efficiency of 83 %. Further LT3990-5.0 characteristics are a adjustable 840 kHz switching frequency and 1 available package option(s): MSOP-16 .

For the LT3990-5.0 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. 4.00 V
V-IN max. 62.00 V
I-OUT? 0.35 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 sync
Frequency typ. 840 kHz
Frequency adjustable
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min. 200 kHz
Frequency adj./ ext.clock max 2200 kHz
Softstart no
Softstart adjustable no
Tracking no
PG/Power OK yes
Quiescent current max. 4 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 33.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 83 %
Component count min. 5
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP MSOP-16
QFN/DFN
SO/SOIC
SOP
DIP
TO
DDPAK

LT3990-5.0 Datasheet

Link to the most up-to-date LT3990-5.0 datasheet and the product page for EVM, tools and support information.

LT3990-5.0

LT3990-5.0 Sample stock and distributor price breaks

LT3990-5.0 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 7

Chip One Stop (6)

ProductStockPriceBuy
LT3990EDD#PBF63
15.85 USD
104.24 USD
503.59 USD
Buy Now
LT3990EMSE-3.3#PBF664
14.17 USD
104.00 USD
503.71 USD
1003.33 USD
2003.21 USD
5003.16 USD
Buy Now
LT3990HMSE-5#PBF37
17.27 USD
104.67 USD
374.36 USD
Buy Now
LT3990HMSE#PBF37
17.27 USD
104.67 USD
374.48 USD
Buy Now
LT3990IMSE-5#PBF21
16.68 USD
104.29 USD
Buy Now
LT3990IMSE-5#PBF178
14.64 USD
104.24 USD
254.13 USD
1003.63 USD
Buy Now

Digi-Key (11)

ProductStockPriceBuy
LT3990EDD#PBF1191
15.45 USD
253.64 USD
1003.10 USD
Buy Now
LT3990EMSE#PBF7714
15.55 USD
253.71 USD
1003.16 USD
Buy Now
LT3990EMSE-5#PBF286
15.55 USD
253.71 USD
1003.16 USD
Buy Now
LT3990IDD#PBF311
16.06 USD
254.04 USD
1003.44 USD
Buy Now
LT3990IMSE#PBF1212
16.18 USD
254.13 USD
1003.51 USD
Buy Now
LT3990IMSE-5#PBF203
16.18 USD
254.13 USD
1003.51 USD
Buy Now
LT3990HMSE-5#PBF1157
16.71 USD
254.49 USD
1003.81 USD
Buy Now
LT3990HMSE-3.3#PBF509
16.71 USD
254.49 USD
1003.81 USD
Buy Now
LT3990EMSE-3.3#PBF1137
15.55 USD
253.71 USD
1003.16 USD
Buy Now
LT3990IMSE-3.3#PBF519
16.18 USD
254.13 USD
1003.51 USD
Buy Now
LT3990HMSE#PBF777
16.71 USD
254.49 USD
1003.81 USD
Buy Now
LT3990EDD#TRPBF0
25003.20 USD
Buy Now
LT3990EMSE#TRPBF0
25003.26 USD
Buy Now
LT3990EMSE-3.3#TRPBF0
25003.26 USD
Buy Now
LT3990EMSE-5#TRPBF0
25003.26 USD
Buy Now
LT3990IDD#TRPBF0
25003.54 USD
Buy Now
LT3990IMSE#TRPBF0
25003.61 USD
Buy Now
LT3990IMSE-3.3#TRPBF0
25003.61 USD
Buy Now
LT3990IMSE-5#TRPBF0
25003.61 USD
Buy Now
LT3990HMSE#TRPBF0
25003.91 USD
Buy Now
LT3990HMSE-3.3#TRPBF0
25003.91 USD
Buy Now
LT3990HMSE-5#TRPBF0
25003.91 USD
Buy Now

Distrelec (1)

ProductStockPriceBuy
LT3990EDD#PBF118Buy Now

Element14 (7)

ProductStockPriceBuy
LT3990EMSE-3.3#PBF154
18.68 USD
255.81 USD
1004.95 USD
Buy Now
LT3990EMSE-5#PBF166
18.68 USD
255.81 USD
1004.95 USD
Buy Now
LT3990EMSE#PBF573
18.68 USD
255.81 USD
1004.95 USD
Buy Now
LT3990HMSE-3.3#PBF0
110.50 USD
257.03 USD
1005.96 USD
Buy Now
LT3990HMSE-5#PBF35
110.50 USD
257.03 USD
1005.96 USD
Buy Now
LT3990HMSE#PBF191
110.50 USD
257.03 USD
1005.96 USD
Buy Now
LT3990IDD#PBF166
19.48 USD
256.32 USD
1005.38 USD
Buy Now
LT3990IMSE-5#PBF144
19.67 USD
256.46 USD
1005.49 USD
Buy Now

Farnell Element14 (7)

ProductStockPriceBuy
LT3990EMSE-3.3#PBF191Buy Now
LT3990EMSE-5#PBF166Buy Now
LT3990EMSE#PBF647Buy Now
LT3990HMSE-5#PBF35Buy Now
LT3990HMSE#PBF191Buy Now
LT3990IDD#PBF180Buy Now
LT3990IMSE-5#PBF159Buy Now

NEWARK (2)

ProductStockPriceBuy
LT3990EDD#PBF2
15.46 USD
253.66 USD
1003.10 USD
Buy Now
LT3990EMSE-3.3#PBF0
15.57 USD
253.73 USD
1003.16 USD
Buy Now
LT3990EMSE-5#PBF0
15.57 USD
253.73 USD
1003.16 USD
Buy Now
LT3990EMSE#PBF0
15.57 USD
253.73 USD
1003.16 USD
Buy Now
LT3990EMSE#TRPBF0
15.38 USD
25003.86 USD
Buy Now
LT3990HMSE-3.3#PBF0
16.71 USD
254.50 USD
1003.81 USD
Buy Now
LT3990HMSE-5#PBF0
16.71 USD
254.50 USD
1003.81 USD
Buy Now
LT3990HMSE#PBF0
16.71 USD
254.50 USD
1003.81 USD
Buy Now
LT3990IDD#PBF0
16.06 USD
254.06 USD
1003.44 USD
Buy Now
LT3990IDD#TRPBF0
15.86 USD
25004.21 USD
Buy Now
LT3990IMSE-3.3#PBF0
16.18 USD
254.15 USD
1003.51 USD
Buy Now
LT3990IMSE-5#PBF62
13.51 USD
253.51 USD
1003.51 USD
Buy Now
LT3990IMSE#PBF0
16.18 USD
254.15 USD
1003.51 USD
Buy Now

RS Components (6)

ProductStockPriceBuy
LT3990EDD#PBF30Buy Now
LT3990EDD#PBF155Buy Now
LT3990EDD#PBF121Buy Now
LT3990EMSE#PBF35Buy Now
LT3990IDD#PBF100Buy Now
LT3990IMSE#PBF54Buy Now

Available Distributors with stock: 0

no online Distributor with LT3990 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3990-5.0. Optional, compare LT3990-5.0 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 LT3990-5.0.

V-IN max. 62 V, I-OUT 0.35 A, V-OUT min. 5 V, Frequency typ. 840 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025330 33.0 0.4 0.6 840.00 2.8 x 2.8 x 3
74404032330 33.0 0.5 0.5 911.00 3 x 3 x 1.5
74404041330 33.0 0.7 0.6 628.00 4 x 4 x 1.2
74404041470 47.0 0.6 0.6 987.00 4 x 4 x 1.2
74404042330 33.0 0.7 0.9 460.00 4 x 4 x 1.8
74404042470 47.0 0.6 0.7 620.00 4 x 4 x 1.8
744042330 33.0 0.7 0.5 382.00 4.8 x 4.8 x 2
744042470 47.0 0.6 0.5 540.00 4.8 x 4.8 x 2
744043330 33.0 0.8 0.6 195.00 4.8 x 4.8 x 3
744043390 39.0 0.8 0.5 215.00 4.8 x 4.8 x 3
744043470 47.0 0.8 0.5 250.00 4.8 x 4.8 x 3
744045330 33.0 0.4 0.9 880.00 4.5 x 3.2 x 2.9
744052470 47.0 0.8 0.7 530.00 5.8 x 5.8 x 2
744053330 33.0 0.9 0.8 180.00 5.8 x 5.8 x 3
744053470 47.0 0.8 0.7 220.00 5.8 x 5.8 x 3
744062330 33.0 0.9 0.8 150.00 6.8 x 6.8 x 2.5
744062470 47.0 0.7 0.6 260.00 6.8 x 6.8 x 2.5
74408941330 33.0 0.5 0.9 1,015.00 4.8 x 4.8 x 2.1
74408941470 47.0 0.4 0.8 1,133.00 4.8 x 4.8 x 2.1
744773133 33.0 0.9 0.9 370.00 4 x 4.5 x 3.5
744773139 39.0 0.8 0.9 418.00 4 x 4.5 x 3.5
744773147 47.0 0.7 0.8 523.00 4 x 4.5 x 3.5
7447785147 47.0 0.9 0.7 500.00 5.9 x 6.2 x 3.3
7447786147 47.0 1.4 0.8 260.00 5.9 x 6.2 x 5.1
784773133 33.0 0.9 0.9 370.00 4 x 4.5 x 3.5
784773139 39.0 0.8 0.9 418.00 4 x 4.5 x 3.5
784773147 47.0 0.7 0.8 523.00 4 x 4.5 x 3.5
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