LT3970-5.0 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LT3970-5.0 is a 40.00 V sync Buck Converter from with 0.35 A output current. The maximum 40.00 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 22.00 µH, a typical external component count of 6 and achieves a peak efficiency of 85 %. Further LT3970-5.0 characteristics are a adjustable 2200 kHz switching frequency and 2 available package option(s): MSOP-10 DFN-10 .

For the LT3970-5.0 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. 4.20 V
V-IN max. 40.00 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. 2200 kHz
Frequency adjustable
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min. 200 kHz
Frequency adj./ ext.clock max 2250 kHz
Softstart no
Softstart adjustable no
Tracking no
PG/Power OK yes
Quiescent current max. 3.5 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 22.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 85 %
Component count min. 6
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT
MSOP MSOP-10
QFN/DFN DFN-10
SO/SOIC
SOP
DIP
TO
DDPAK

LT3970-5.0 Datasheet

Link to the most up-to-date LT3970-5.0 datasheet and the product page for EVM, tools and support information.

LT3970-5.0

LT3970-5.0 Sample stock and distributor price breaks

LT3970-5.0 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with LT3970 stock available

Available Distributors with stock: 9

Arrow Electronics

ProductStockPriceBuy
LT3970EMS#TRPBF 3604
1003.00 $
Buy Now
LT3970EDDB-3.3#TRMPBF 1000
1002.85 $
Buy Now
LT3970EMS#PBF 744
1002.91 $
Buy Now
LT3970EDDB-3.3#TRMPBF 496
1002.85 $
Buy Now
LT3970IDDB-3.3#TRMPBF 380
1003.17 $
Buy Now
LT3970EDDB-5#TRMPBF 285
1002.85 $
Buy Now
LT3970EMS-5#PBF 163
1002.91 $
Buy Now
LT3970EMS-5#PBF 54
1002.91 $
Buy Now
LT3970IMS#TRPBF 0
1003.33 $
Buy Now
LT3970EDDB-5#TRMPBF 0
1002.85 $
Buy Now
LT3970IDDB-3.3#TRMPBF 0
1003.17 $
Buy Now
LT3970HMS#TRPBF 0
1003.65 $
Buy Now
LT3970EMS#TRPBF 0
1003.00 $
Buy Now
LT3970EMS-3.3#PBF 0
1002.91 $
Buy Now
LT3970EMS-5#TRPBF 0
1003.01 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT3970EMS-3.3#PBF 4117
5002.63 €
2502.69 €
1002.83 €
253.43 €
15.16 €
Buy Now
LT3970EMS#PBF 3703
5002.63 €
2502.69 €
1002.83 €
253.43 €
15.16 €
Buy Now
LT3970IDDB#TRMPBF 3148
2503.08 €
1003.24 €
253.92 €
15.90 €
Buy Now
LT3970IDDB#TRMPBF 3148
2503.08 €
1003.24 €
253.92 €
15.90 €
Buy Now
LT3970IDDB#TRMPBF 3000
5002.92 €
Buy Now
LT3970EDDB#TRMPBF 2773
2502.77 €
1002.92 €
253.53 €
15.32 €
Buy Now
LT3970EDDB#TRMPBF 2773
2502.77 €
1002.92 €
253.53 €
15.32 €
Buy Now
LT3970IMS#TRPBF 2500
25002.99 €
Buy Now
LT3970EDDB#TRMPBF 2499
35002.53 €
5002.63 €
Buy Now
LT3970EDDB-3.3#TRMPBF 1838
2502.77 €
1002.92 €
253.53 €
15.32 €
Buy Now
LT3970EDDB-3.3#TRMPBF 1838
2502.77 €
1002.92 €
253.53 €
15.32 €
Buy Now
LT3970EDDB-3.3#TRMPBF 1500
35002.53 €
5002.63 €
Buy Now
LT3970IMS-3.3#PBF 1416
5002.93 €
2503.00 €
1003.16 €
253.82 €
15.75 €
Buy Now
LT3970IMS#PBF 232
5002.93 €
2503.00 €
1003.16 €
253.82 €
15.75 €
Buy Now
LT3970EMS-5#TRPBF 0
25002.70 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LT3970EMS#TRPBF 3604
33.00 $
Buy Now
LT3970EDDB-3.3#TRMPBF 1000
5002.85 $
Buy Now
LT3970EMS#PBF 754
32.91 $
Buy Now
LT3970EDDB-3.3#TRMPBF 496
32.85 $
Buy Now
LT3970IDDB-3.3#TRMPBF 380
23.17 $
Buy Now
LT3970IMS-3.3#PBF 347
23.24 $
Buy Now
LT3970IDDB#TRMPBF 300
23.17 $
Buy Now
LT3970EDDB-5#TRMPBF 285
32.85 $
Buy Now
LT3970IMS#PBF 174
23.24 $
Buy Now
LT3970EMS-5#PBF 163
32.91 $
Buy Now
LT3970EMS-5#PBF 54
32.91 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT3970IMS-3.3#PBF 500
16.47 $
254.29 $
1003.55 $
2503.37 $
5003.29 $
10003.17 $
Buy Now
LT3970EMS-3.3#PBF 1269
15.81 $
253.85 $
1003.18 $
2503.02 $
5002.96 $
10002.84 $
Buy Now
LT3970EDDB-3.3#TRMPBF 1267
15.98 $
253.97 $
1003.28 $
2503.11 $
5002.84 $
15002.77 $
Buy Now
LT3970IMS#PBF 949
16.47 $
254.29 $
1003.55 $
2503.37 $
5003.29 $
10003.17 $
Buy Now
LT3970HMS#PBF 198
17.05 $
254.68 $
1003.87 $
2503.68 $
5003.59 $
10003.45 $
Buy Now
LT3970EMS#PBF 72
15.81 $
253.85 $
1003.18 $
2503.02 $
5002.96 $
10002.84 $
Buy Now
LT3970EDDB#TRMPBF 217
15.98 $
253.97 $
1003.28 $
2503.11 $
5002.84 $
15002.77 $
Buy Now
LT3970IDDB-5#TRPBF 0
16.51 $
254.32 $
1003.57 $
2503.39 $
5003.31 $
25003.09 $
Buy Now
LT3970EMS-5#PBF 0
15.81 $
253.85 $
1003.18 $
2503.02 $
5002.96 $
10002.84 $
Buy Now
LT3970IDDB-3.3#TRMPBF 0
5003.15 $
15003.08 $
Buy Now
LT3970IMS-5#PBF 0
2003.55 $
2503.37 $
5003.29 $
10003.17 $
Buy Now
LT3970HMS-3.3#PBF 0
2003.87 $
2503.68 $
5003.59 $
10003.45 $
Buy Now
LT3970HMS-5#PBF 0
2003.87 $
2503.68 $
5003.59 $
10003.45 $
Buy Now
LT3970EDDB-3.42#TRMPBF 0
5002.84 $
15002.77 $
Buy Now
LT3970IDDB#TRMPBF 0
5003.15 $
15003.08 $
Buy Now
show stock=0hide stock=0

Rochester Electronics

ProductStockPriceBuy
LT3970HMS-3.3#PBF 200
10005.49 $
5005.78 $
1006.01 $
256.27 $
16.75 $
Buy Now

Quest Components

ProductStockPriceBuy
LT3970EMS#PBF 2
34.40 $
16.60 $
Buy Now
LT3970IDDB#PBF 2
24.70 $
17.05 $
Buy Now
LT3970IMS#3HTPBF 1100
10922.63 $
6682.75 $
17.50 $
Buy Now

TME Electronic Components

ProductStockPriceBuy
LT3970EMS#PBF 48
17.00 $
36.46 $
105.70 $
254.94 $
Buy Now

New Advantage Corporation

ProductStockPriceBuy
LT3970EMS#PBF 450
504.42 $
Buy Now

RS Components

ProductStockPriceBuy
LT3970EMS#PBF 150
253.95 GBP
104.64 GBP
Buy Now
LT3970EMS#PBF 47
253.95 GBP
104.64 GBP
15.34 GBP
Buy Now
LT3970EMS-5#PBF 28
263.72 GBP
23.97 GBP
Buy Now
LT3970EMS-5#PBF 86
263.72 GBP
Buy Now

Available Distributors without stock: 1

element14 Asia-Pacific

ProductStockPriceBuy
LT3970EMS-5#PBF 0
1004.52 SGD
255.20 SGD
17.77 SGD
Buy Now
LT3970EDDB-3.3#PBF 0
1004.96 SGD
255.76 SGD
18.27 SGD
Buy Now
LT3970EMS-3.3#PBF 0
1004.52 SGD
255.20 SGD
17.77 SGD
Buy Now

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3970-5.0. Optional, compare LT3970-5.0 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT3990-5.0 LT3990-5.0 product overviewLT3990-5.0 product overview Linear Technology MSOP-16

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3970-5.0.

V-IN max. 40 V, I-OUT 0.35 A, V-OUT min. 5 V, Frequency typ. 2200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025150 15.0 0.7 0.9 356.00 2.8 x 2.8 x 3
744031150 15.0 0.6 0.5 255.00 3.8 x 3.8 x 1.8
74404024150 15.0 0.5 0.8 830.00 2.5 x 2 x 1.2
74404024180 18.0 0.5 0.7 830.00 2.5 x 2 x 1.2
74404032150 15.0 0.7 0.8 300.00 3 x 3 x 1.5
744042150 15.0 1.0 0.8 190.00 4.8 x 4.8 x 2
744042180 18.0 0.9 0.7 270.00 4.8 x 4.8 x 2
744043150 15.0 1.0 0.8 120.00 4.8 x 4.8 x 3
744043180 18.0 1.0 0.7 150.00 4.8 x 4.8 x 3
7440680150 15.0 1.1 0.8 213.00 8 x 8 x 1.2
7440680180 18.0 0.9 0.8 302.00 8 x 8 x 1.2
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