LT3434 Buck Converter overview

Description

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Category
Sub-Category

LT3434 is a 60.00 V non-sync Buck Converter from with 2.40 A output current. The maximum 60.00 V input voltage can be regulated down into a 1.25 V to 30.00 V output voltage.

It requires are a typical inductor size of 33.00 µH, a typical external component count of 13 and achieves a peak efficiency of 90 %. Further LT3434 characteristics are a fixed 200 kHz switching frequency and 1 available package option(s): TSSOP-16 .

For the LT3434 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. 3.30 V
V-IN max. 60.00 V
I-OUT? 2.40 A
V-OUT min. 1.25 V
V-OUT max. 30.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 200 kHz
Frequency fixed
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 230 kHz
Frequency adj./ ext.clock max 700 kHz
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK yes
Quiescent current max. 5000 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 90 %
Component count min. 13
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP TSSOP-16
DIP
TO
DDPAK

LT3434 Datasheet

Link to the most up-to-date LT3434 datasheet and the product page for EVM, tools and support information.

LT3434

LT3434 Sample stock and distributor price breaks

LT3434 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 7

ARROW-NAC (2)

ProductStockPriceBuy
LT3434EFE#PBF396
17.50 USD
1006.18 USD
Buy Now
LT3434IFE#PBF284
18.63 USD
1007.11 USD
Buy Now

Chip-One-Stop (2)

ProductStockPriceBuy
LT3434EFE#PBF140
111.40 USD
59.64 USD
109.52 USD
259.09 USD
508.87 USD
1008.41 USD
Buy Now
LT3434IFE#PBF455
113.60 USD
511.40 USD
1011.30 USD
2510.80 USD
5010.50 USD
10010.00 USD
Buy Now

DIGI-KEY (3)

ProductStockPriceBuy
LT3434EFE#PBF1169
110.55 USD
257.50 USD
1006.18 USD
Buy Now
LT3434IFE#PBF714
112.14 USD
258.63 USD
1007.11 USD
Buy Now
DC614A2
1125.63 USD
Buy Now
LT3434EFE#TRPBF0
25006.28 USD
Buy Now
LT3434IFE#TRPBF0
25007.21 USD
Buy Now

Element14 (1)

ProductStockPriceBuy
LT3434EFE#PBF0
116.86 USD
2511.99 USD
1009.88 USD
Buy Now
LT3434IFE#PBF70
119.40 USD
2513.79 USD
10011.36 USD
Buy Now

FARNELL-ELEMENT14 (1)

ProductStockPriceBuy
LT3434IFE#PBF70Buy Now

NEWARK (1)

ProductStockPriceBuy
LT3434EFE#PBF0
110.57 USD
257.17 USD
1006.18 USD
Buy Now
LT3434EFE#TRPBF0
110.88 USD
25007.80 USD
Buy Now
LT3434IFE#PBF127
112.16 USD
258.25 USD
1007.11 USD
Buy Now

RS-COMPONENTS (3)

ProductStockPriceBuy
LT3434EFE#PBF55Buy Now
LT3434IFE#PBF90Buy Now
LT3434IFEPBF95Buy Now

Available Distributors with stock: 0

no online Distributor with LT3434 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT3434. Optional, compare LT3434 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT3435 LT3435 product overviewLT3435 product overview Linear Technology TSSOP-16
50% LT1976 LT1976 product overviewLT1976 product overview Linear Technology TSSOP-16
50% LT1977 LT1977 product overviewLT1977 product overview Linear Technology TSSOP-16

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3434.

V-IN max. 60 V, I-OUT 2.4 A, V-OUT min. 1.25 V, Frequency typ. 200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404054068 6.8 2.5 3.2 43.00 5 x 5 x 4
74404064068 6.8 3.0 4.3 31.00 6 x 6 x 4.5
74404064082 8.2 2.6 4.3 43.00 6 x 6 x 4.5
74404064100 10.0 2.5 3.5 48.00 6 x 6 x 4.5
74404084068 6.8 3.6 5.0 24.00 8 x 8 x 4.2
74404084082 8.2 3.5 4.6 26.00 8 x 8 x 4.2
74404084100 10.0 3.3 4.6 29.00 8 x 8 x 4.2
7440650068 6.8 4.2 3.6 25.00 10 x 10 x 3.1
7440660062 6.2 4.3 4.5 16.50 10 x 10 x 4.1
744066100 10.0 3.6 4.0 25.00 10 x 10 x 4.1
744071056 5.6 4.0 4.0 20.00 8 x 8 x 4.6
744314101 10.0 3.5 4.0 33.00 7 x 6.9 x 5
744314650 6.5 6.0 6.0 21.50 7 x 6.9 x 5
744314760 7.6 4.2 4.8 30.20 7 x 6.9 x 5
744314850 8.5 4.0 4.5 32.50 7 x 6.9 x 5
744316560 5.6 4.5 4.6 28.50 5.5 x 5.3 x 4.3
74437336056 5.6 3.0 6.0 55.00 5.7 x 5.2 x 3
74437336068 6.8 2.5 5.0 68.00 5.7 x 5.2 x 3
74438356056 5.6 2.8 4.6 68.00 4.1 x 4.1 x 2.1
744732100 10.0 4.0 4.0 27.00 9 x 9 x 8
7447452100 10.0 4.7 4.5 15.00 9 x 9 x 13.5
7447462068 6.8 3.3 3.0 27.00 5.5 x 5.5 x 8.5
7447471068 6.8 6.4 5.0 11.90 10.5 x 10.5 x 11.5
7447471100 10.0 5.1 4.2 17.50 10.5 x 10.5 x 11.5
744771006 6.8 5.6 6.0 14.00 12 x 12 x 6
74477110 10.0 4.1 5.6 21.00 12 x 12 x 6
7447713082 8.2 3.0 4.7 41.00 10 x 10 x 3
7447713100 10.0 2.6 4.1 51.50 10 x 10 x 3
7447714068 6.8 5.2 5.8 18.50 10 x 10 x 5
7447714100 10.0 4.3 5.0 23.00 10 x 10 x 5
7447715006 6.8 4.3 4.7 20.00 12 x 12 x 4.5
7447715100 10.0 3.8 4.2 25.00 12 x 12 x 4.5
744772100 10.0 4.2 5.0 20.30 7.8 x 7.8 x 10
74477610 10.0 3.0 3.2 27.50 9 x 10 x 5.9
7447779006 6.8 2.9 3.3 33.00 7.3 x 7.3 x 4.5
7447779008 8.2 2.7 3.0 47.00 7.3 x 7.3 x 4.5
7447797820 8.2 5.1 5.8 25.30 10.2 x 10.2 x 4.5
7447798720 7.2 7.9 6.0 11.30 10.2 x 10.2 x 6.4
7447798910 9.1 7.4 5.4 12.70 10.2 x 10.2 x 6.4
744787068 6.8 3.0 3.0 27.00 7.8 x 7 x 5
784771068 6.8 5.5 6.0 18.00 12 x 12 x 8.3
784771082 8.2 5.1 5.5 20.00 12 x 12 x 8.3
784771100 10.0 5.0 5.3 22.00 12 x 12 x 8.3
784774068 6.8 2.4 5.0 71.00 5.2 x 5.8 x 4.85
784775056 5.6 4.0 4.0 18.00 7 x 7.8 x 5.5
784775068 6.8 3.7 3.8 22.00 7 x 7.8 x 5.5
784775082 8.2 3.2 3.2 24.00 7 x 7.8 x 5.5
784776056 5.6 4.8 5.5 15.00 9 x 10 x 5.9
784776068 6.8 4.4 5.0 16.00 9 x 10 x 5.9
784776082 8.2 4.2 4.3 20.00 9 x 10 x 5.9
78477610 10.0 3.0 3.2 28.00 9 x 10 x 5.9
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