LT1074 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LT1074 is a 45.00 V non-sync Buck Converter from with 4.40 A output current. The maximum 45.00 V input voltage can be regulated down into a 2.21 V to 35.00 V output voltage.

It requires are a typical inductor size of 50.00 µH, a typical external component count of 8 and achieves a peak efficiency of 88 %. Further LT1074 characteristics are a fixed 100 kHz switching frequency and 2 available package option(s): TO-220 DD .

For the LT1074 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. 7.30 V
V-IN max. 45.00 V
I-OUT? 4.40 A
V-OUT min. 2.21 V
V-OUT max. 35.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 100 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK no
Quiescent current max. 11000 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 50.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 88 %
Component count min. 8
current limit adjustable yes
Nr.of packages 2
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP
DIP
TO TO-220
DDPAK DD

LT1074 Datasheet

Link to the most up-to-date LT1074 datasheet and the product page for EVM, tools and support information.

LT1074

LT1074 Sample stock and distributor price breaks

LT1074 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 10

Buerklin (2)

ProductStockPriceBuy
LT1074CT34Buy Now
LT1074HVCT8Buy Now

Chip-One-Stop (18)

ProductStockPriceBuy
LT1074CT#06PBF555
19.73 USD
58.31 USD
108.12 USD
507.65 USD
1007.21 USD
2007.05 USD
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LT1074CT7#PBF170
18.27 USD
107.50 USD
507.22 USD
1007.05 USD
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LT1074CT7#PBF335
111.30 USD
59.55 USD
109.44 USD
259.00 USD
508.79 USD
1008.34 USD
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LT1074CT#PBF137
19.13 USD
506.27 USD
1006.12 USD
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LT1074CT#PBF2368
110.10 USD
58.68 USD
108.48 USD
507.99 USD
1007.53 USD
2007.36 USD
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LT1074HVCT#06PBF190
112.70 USD
512.50 USD
1011.90 USD
2511.70 USD
5011.10 USD
10010.80 USD
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LT1074HVCT7#PBF107
113.80 USD
513.40 USD
1012.80 USD
2512.70 USD
5011.90 USD
10011.70 USD
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LT1074HVCT#PBF206
113.70 USD
513.70 USD
509.12 USD
1008.06 USD
2007.84 USD
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LT1074HVCT#PBF746
113.00 USD
512.70 USD
1012.10 USD
2511.90 USD
5011.20 USD
10011.00 USD
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LT1074HVIT#06PBF316
116.20 USD
515.80 USD
1015.10 USD
2514.90 USD
5014.10 USD
10013.70 USD
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LT1074HVIT7#06PBF100
5015.20 USD
10014.80 USD
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LT1074HVIT7#PBF314
118.60 USD
518.20 USD
1017.40 USD
2516.90 USD
5016.10 USD
10015.70 USD
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LT1074HVIT#PBF1399
117.20 USD
516.80 USD
1016.10 USD
2515.90 USD
5015.00 USD
10014.60 USD
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LT1074IT475
47513.90 USD
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LT1074IT#06PBF200
112.60 USD
510.70 USD
1010.50 USD
2510.10 USD
509.85 USD
1009.35 USD
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LT1074IT7#PBF119
112.80 USD
512.50 USD
1012.00 USD
2511.80 USD
5011.10 USD
10010.90 USD
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LT1074IT#PBF50
19.82 USD
108.24 USD
507.92 USD
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LT1074IT#PBF499
113.40 USD
511.30 USD
1011.20 USD
2510.70 USD
5010.40 USD
1009.94 USD
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DIGI-KEY (19)

ProductStockPriceBuy
LT1074HVCT21Buy Now
LT1074HVCT7#PBF16Buy Now
LT1074HVIT#PBF2Buy Now
LT1074IT#06PBF20Buy Now
LT1074IT#PBF16Buy Now
LT1074CT#PBF1668
110.15 USD
256.74 USD
1005.25 USD
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LT1074CT7#PBF410
111.86 USD
257.87 USD
1006.10 USD
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LT1074IT#PBF495
113.77 USD
259.14 USD
1007.10 USD
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LT1074IT7#PBF303
114.77 USD
259.81 USD
1007.65 USD
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LT1074HVCT#PBF579
115.28 USD
2510.14 USD
1007.90 USD
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LT1074HVCT#06PBF324
115.28 USD
2510.14 USD
1007.90 USD
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LT1074HVIT#PBF1112
116.48 USD
2513.19 USD
10010.65 USD
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LT1074HVCT7#PBF632
116.88 USD
2511.21 USD
1008.75 USD
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LT1074HVIT7#PBF207
117.37 USD
2513.89 USD
10011.20 USD
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LT1074CT7#06PBF176
111.86 USD
257.87 USD
1006.10 USD
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LT1074HVCT7#06PBF327
116.88 USD
2511.21 USD
1008.75 USD
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LT1074CT#06PBF76
110.15 USD
256.74 USD
1005.25 USD
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LT1074HVIT#06PBF49
116.48 USD
2513.19 USD
10010.65 USD
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LT1074HVIT7#06PBF27
117.37 USD
2513.89 USD
10011.20 USD
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LT1074IT#06PBF0
113.77 USD
259.14 USD
1007.10 USD
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LT1074CT#30PBF0
10005.70 USD
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LT1074HVIT#30PBF0
100011.10 USD
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LT1074HVIT7#35PBF0
100011.65 USD
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Element14 (8)

ProductStockPriceBuy
LT1074CT7#PBF0
118.81 USD
2512.49 USD
1009.75 USD
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LT1074CT#PBF195
116.10 USD
2510.70 USD
1008.36 USD
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LT1074HVCT#06PBF4
124.24 USD
2516.09 USD
10012.58 USD
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LT1074HVCT7#PBF14
126.78 USD
2517.79 USD
10013.90 USD
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LT1074HVCT#PBF107
124.24 USD
2516.09 USD
10012.58 USD
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LT1074HVIT#06PBF0
126.15 USD
2520.93 USD
10016.95 USD
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LT1074HVIT7#PBF102
127.56 USD
2522.04 USD
10017.87 USD
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LT1074HVIT#PBF101
126.15 USD
2520.93 USD
10016.95 USD
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LT1074IT#06PBF98
121.85 USD
2514.50 USD
10011.34 USD
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LT1074IT#PBF13
121.85 USD
2514.50 USD
10011.34 USD
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FARNELL-ELEMENT14 (8)

ProductStockPriceBuy
LT1074CT#PBF660Buy Now
LT1074HVCT#06PBF4Buy Now
LT1074HVCT7#PBF22Buy Now
LT1074HVCT#PBF112Buy Now
LT1074HVIT7#PBF102Buy Now
LT1074HVIT#PBF125Buy Now
LT1074IT#06PBF98Buy Now
LT1074IT#PBF13Buy Now

NEWARK (4)

ProductStockPriceBuy
LT1074CT#06PBF0
110.19 USD
256.78 USD
1005.25 USD
Buy Now
LT1074CT7#06PBF0
111.84 USD
257.87 USD
1006.10 USD
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LT1074CT7#PBF0
111.90 USD
257.87 USD
1006.10 USD
Buy Now
LT1074CT#PBF414
110.08 USD
256.67 USD
1005.25 USD
Buy Now
LT1074HVCT#06PBF0
115.17 USD
2510.04 USD
1007.90 USD
Buy Now
LT1074HVCT7#06PBF0
116.80 USD
2511.12 USD
1008.75 USD
Buy Now
LT1074HVCT7#PBF0
116.80 USD
2511.12 USD
1008.75 USD
Buy Now
LT1074HVCT#PBF59
115.17 USD
2510.04 USD
1007.90 USD
Buy Now
LT1074HVIT#06PBF0
116.51 USD
2513.21 USD
10010.65 USD
Buy Now
LT1074HVIT7#PBF0
116.92 USD
2513.56 USD
10011.20 USD
Buy Now
LT1074HVIT#PBF0
116.09 USD
2512.89 USD
10010.65 USD
Buy Now
LT1074IT#06PBF0
113.85 USD
259.16 USD
1007.10 USD
Buy Now
LT1074IT7#PBF15
17.65 USD
257.65 USD
1007.65 USD
Buy Now
LT1074IT#PBF3
113.85 USD
259.16 USD
1007.10 USD
Buy Now

RS-COMPONENTS (15)

ProductStockPriceBuy
LT1074CT7#PBF51Buy Now
LT1074CT7#PBF46Buy Now
LT1074CT#PBF92Buy Now
LT1074CT#PBF1514Buy Now
LT1074HVCT7#PBF18Buy Now
LT1074HVCT7#PBF24Buy Now
LT1074HVCT#PBF62Buy Now
LT1074HVCT#PBF8Buy Now
LT1074HVCTPBF50Buy Now
LT1074HVIT7#PBF20Buy Now
LT1074HVIT7#PBF20Buy Now
LT1074HVIT#PBF47Buy Now
LT1074HVIT#PBF57Buy Now
LT1074IT#PBF15Buy Now
LT1074IT#PBF32Buy Now

Reichelt Elektronik (3)

ProductStockPriceBuy
LT1074CT7#PBF1Buy Now
LT1074CT#PBF1Buy Now
LT1074HVCT#PBF1Buy Now

Schukat (2)

ProductStockPriceBuy
LT1074CTPBF149Buy Now
LT1074HVCTPBF214Buy Now

TME (3)

ProductStockPriceBuy
LT1074CT#PBF287Buy Now
LT1074HVCT7#PBF150Buy Now
LT1074HVCT#PBF42Buy Now

Available Distributors with stock: 0

no online Distributor with LT1074 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT1074. Optional, compare LT1074 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT1074HV LT1074HV product overviewLT1074HV product overview Linear Technology DD, TO-220
10% LM22679 LM22679 product overviewLM22679 product overview Texas Instruments TO263-7
10% LM2679 LM2679 product overviewLM2679 product overview Texas Instruments DDPAK-7, TO-220-7, VSON-14
50% LM22673 LM22673 product overviewLM22673 product overview Texas Instruments TO263-7, SO-8
50% LM2673 LM2673 product overviewLM2673 product overview Texas Instruments DDPAK-7, TO-220-7, VSON-14

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT1074.

V-IN max. 45 V, I-OUT 4.4 A, V-OUT min. 2.21 V, Frequency typ. 100 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
7443251000 10.0 7.5 8.5 16.30 10.5 x 10.2 x 5
7443251600 16.0 5.0 6.5 34.50 10.5 x 10.2 x 5
7443321000 10.0 9.0 10.0 15.35 12.1 x 11.4 x 10
7443331000 10.0 9.0 8.0 22.75 10.9 x 10 x 9.7
7443341000 10.0 4.4 7.0 38.50 8.4 x 7.9 x 7.5
7443550101 10.0 8.5 10.0 14.10 13 x 12.8 x 5
7443551111 11.3 11.0 9.5 9.10 13.2 x 12.8 x 6.5
7443551131 13.0 10.0 9.0 11.00 13.2 x 12.8 x 6.5
7443551151 15.4 9.0 8.0 14.00 13.2 x 12.8 x 6.5
744750230100 10.0 4.6 6.8 18.60 8.8 x 8.8 x 11
744750340150 15.0 5.6 8.5 17.20 10.8 x 10.8 x 13
744750420100 10.0 6.2 9.6 12.90 12.8 x 12.8 x 9
744750420150 15.0 5.1 7.9 21.30 12.8 x 12.8 x 9
744750460150 15.0 9.0 9.5 9.30 12.8 x 12.8 x 15.8
74477010 10.0 6.2 6.6 19.00 12 x 12 x 8
744770112 12.0 5.9 6.3 21.00 12 x 12 x 8
744770115 15.0 5.0 6.0 24.00 12 x 12 x 8
7447709100 10.0 7.1 10.5 12.90 12 x 12 x 10
7447709150 15.0 7.0 8.0 20.70 12 x 12 x 10
7447798111 11.0 6.9 5.3 14.00 10.2 x 10.2 x 6.4
784770100 10.0 5.0 6.8 26.00 12 x 12 x 8.3
7847709100 10.0 5.0 7.5 25.00 12 x 12 x 10.3
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