LT1172 Boost Converter Overview

Description

Manufacturer
 
Category
Sub-Category

LT1172 is a 40.00 V, 2.13 A switch current limit non-sync Boost Converter from . The input voltage from 3.00 V to 40.00 V  can be boosted into an output voltage ranging from 3.00 V to 40.00 V.

Features of the Boost Converter are fixed 100 kHz switching frequency, a typical inductor size of 50.0 µH and it offers a peak efficiency of  up to 85 %. The minimum external component count is 8 and LT1172 is available in 5 package option(s): SO-8 DIP-8 TO220-5 DD-5 .

For LT1172 replacement search, 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. 3.00 V
V-IN max. 40.00 V
Current-Limit typ.? 2.13 A
V-OUT min. 3.00 V
V-OUT max. 40.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync non-sync
Frequency typ. 100 kHz
Frequency adjustable fixed
Frequency selectable
Frequency adj. min.
Frequency adj. max.
extern clock sync. yes
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK no
LBI/LBO no
Frequency sync. min. 120 kHz
Frequency sync. max. 160 kHz
Down Mode no
Quiescent current max. 9000 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 50.0 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Boost
Peak Efficiency 85 %
Component count min. 8
current limit adjustable yes
Nr.of package options 5
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC SO-8
SOP
DIP DIP-8
TO TO220-5
DDPAK DD-5

LT1172 Datasheet

Link to the most up-to-date LT1172 datasheet and the product page for EVM, tools and support information.

LT1172

LT1172 Price breaks and distributor sample stock

LT1172 prices and available online distributors.

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Available Distributors with stock: 0

no online Distributor with LT1172 stock available

Available Distributors with stock: 14

Arrow Electronics

ProductStockPriceBuy
LT1172IS8 2123
5000011.21 $
2500011.54 $
1000011.71 $
500011.89 $
250012.07 $
100012.27 $
50012.46 $
10012.88 $
2524.29 $
170.85 $
Buy Now
LT1172IN8 1039
100012.70 $
50014.23 $
10017.78 $
2523.70 $
137.42 $
Buy Now
LT1172MK 374
1006.81 $
2510.76 $
112.02 $
Buy Now
LT1172HVCT#06PBF 218
1004.21 $
14.92 $
Buy Now
LT1172HVIQ#PBF 177
10005.58 $
5005.80 $
2505.93 $
1006.24 $
Buy Now
LT1172CSW#PBF 137
10003.27 $
5003.40 $
2503.48 $
1003.66 $
254.43 $
16.68 $
Buy Now
LT1172IN8#PBF 99
1003.72 $
254.28 $
16.45 $
Buy Now
LT1172MJ8 63
25387.10 $
1420.77 $
Buy Now
LT1172HVCT#PBF 63
10004.28 $
5004.45 $
2504.55 $
1004.79 $
255.80 $
18.73 $
Buy Now
LT1172CN8#PBF 13
1002.64 $
253.04 $
14.58 $
Buy Now
LT1172CT#06PBF 3
1003.22 $
16.69 $
Buy Now
LT1172CT#PBF 2
10003.27 $
5003.40 $
2503.48 $
1003.66 $
254.43 $
16.68 $
Buy Now
LT1172HVIQ 1
5000015.28 $
2500015.74 $
1000015.98 $
500016.22 $
250016.48 $
100016.74 $
50017.01 $
10017.58 $
2533.16 $
196.72 $
Buy Now
LT1172MK 0 Buy Now
LT1172MJ8 0 Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT1172IS8#PBF 9881
1004.45 €
255.38 €
18.10 €
Buy Now
LT1172CS8#TRPBF 2740
1003.58 €
254.33 €
16.52 €
Buy Now
LT1172CS8#TRPBF 2740
1003.58 €
254.33 €
16.52 €
Buy Now
LT1172CS8#PBF 2610
1003.40 €
254.12 €
16.20 €
Buy Now
LT1172CS8#TRPBF 2500
25003.24 €
Buy Now
LT1172CN8#PBF 2008
1002.57 €
253.10 €
14.68 €
Buy Now
LT1172IN8#PBF 1293
1003.62 €
254.38 €
16.60 €
Buy Now
LT1172CQ#TRPBF 750
7503.90 €
Buy Now
LT1172CQ#TRPBF 750
1004.35 €
255.26 €
17.92 €
Buy Now
LT1172CQ#TRPBF 750
1004.35 €
255.26 €
17.92 €
Buy Now
LT1172CQ#PBF 412
1004.03 €
254.88 €
17.34 €
Buy Now
LT1172CT#PBF 311
1003.41 €
254.13 €
16.22 €
Buy Now
LT1172HVIQ#PBF 233
1005.81 €
257.03 €
110.59 €
Buy Now
LT1172HVCQ#PBF 181
1005.35 €
256.47 €
19.75 €
Buy Now
LT1172HVCT#PBF 122
1004.47 €
255.40 €
18.14 €
Buy Now

Verical

ProductStockPriceBuy
LT1172IS8 2123
100012.27 $
50012.46 $
10012.88 $
2524.29 $
170.85 $
Buy Now
LT1172CS8#PBF 1557
10003.61 $
5003.70 $
2503.80 $
1003.91 $
504.02 $
254.14 $
34.27 $
Buy Now
LT1172IS8#PBF 1225
10004.72 $
5004.84 $
2504.97 $
1005.12 $
505.26 $
255.42 $
25.59 $
Buy Now
LT1172IN8 1039
100012.70 $
50014.23 $
10017.78 $
2523.70 $
137.42 $
Buy Now
LT1172MK 374
1006.81 $
2510.76 $
112.02 $
Buy Now
LT1172HVIQ#PBF 177
27.09 $
Buy Now
LT1172CSW#PBF 137
10003.27 $
5003.40 $
2503.48 $
1003.66 $
254.43 $
26.68 $
Buy Now
LT1172IN8#PBF 99
1003.72 $
254.28 $
26.45 $
Buy Now
LT1172HVCQ#PBF 83
506.72 $
256.93 $
117.14 $
Buy Now
LT1172MJ8 63
25387.10 $
1420.77 $
Buy Now
LT1172HVCT#PBF 63
10004.28 $
5004.45 $
2504.55 $
1004.79 $
255.80 $
28.73 $
Buy Now
LT1172CN8#PBF 13
1002.64 $
253.04 $
34.58 $
Buy Now
LT1172CT#06PBF 3
1003.22 $
26.69 $
Buy Now
LT1172CT#PBF 2
10003.27 $
5003.40 $
2503.48 $
1003.66 $
254.43 $
26.68 $
Buy Now
LT1172HVIQ 1
196.72 $
Buy Now

Newark element14

ProductStockPriceBuy
LT1172HVCQ#PBF 83
14.64 $
104.64 $
254.64 $
504.64 $
1004.64 $
2504.64 $
5004.64 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT1172CN8#PBF 532
14.82 $
253.20 $
1002.78 $
Buy Now
LT1172CS8#PBF 2271
16.21 $
254.34 $
1003.84 $
2503.59 $
5003.51 $
Buy Now
LT1172CT#PBF 453
17.03 $
254.66 $
1003.85 $
2503.66 $
5003.58 $
10003.44 $
Buy Now
LT1172CS8#TRPBF 2215
17.38 $
254.89 $
1004.04 $
2503.84 $
5003.75 $
25003.50 $
Buy Now
LT1172IN8#PBF 271
16.79 $
254.51 $
1003.92 $
Buy Now
LT1172CQ#PBF 233
17.39 $
255.16 $
1004.56 $
2504.26 $
5004.17 $
Buy Now
LT1172HVIQ#PBF 112
111.97 $
257.95 $
1006.57 $
2506.24 $
5006.10 $
10005.87 $
Buy Now
LT1172IS8#PBF 202
18.13 $
255.68 $
1005.02 $
2504.69 $
5004.59 $
Buy Now
LT1172HVCT#PBF 123
19.19 $
256.10 $
1005.04 $
2504.79 $
5004.68 $
10004.50 $
Buy Now
LT1172HVCQ#PBF 82
111.00 $
257.31 $
1006.04 $
2505.74 $
5005.61 $
10005.39 $
Buy Now
LT1172CSW#PBF 257
17.03 $
254.66 $
1003.85 $
2503.66 $
5003.58 $
10003.44 $
Buy Now

Rochester Electronics

ProductStockPriceBuy
LT1172CN8#PBF 3
10002.93 $
5003.09 $
1003.22 $
253.35 $
13.61 $
Buy Now

Bristol Electronics

ProductStockPriceBuy
LT1172HVMK 2
124.00 $
Buy Now
LT1172CS8#PBF 17
LT1172CQ 21
15.82 $
63.79 $
152.91 $
Buy Now
LT1172CQ 4
LT1172CS8TR 1112
LT1172CS8 45
LT1172CS8 74
LT1172CS8 677
LT1172CS8 40
24.48 $
72.91 $
192.24 $
Buy Now
LT1172CS8 62
LT1172CS8 39
LT1172CS8#TR 371
LT1172CSW 266
LT1172CT#PBF 4
15.60 $
Buy Now
LT1172CN8 68

Quest Components

ProductStockPriceBuy
LT1172CN8 6
73.78 $
34.30 $
15.16 $
Buy Now
LT1172CN8 1
15.16 $
Buy Now
LT1172CN8 16
73.23 $
34.30 $
16.45 $
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LT1172CN8 3
33.44 $
15.16 $
Buy Now
LT1172CQ 14
154.98 $
55.48 $
17.47 $
Buy Now
LT1172CQ 3
26.23 $
17.47 $
Buy Now
LT1172CQ 16
63.90 $
25.20 $
17.80 $
Buy Now
LT1172CS 289
12.85 $
Buy Now
LT1172CS8 32
73.00 $
34.00 $
16.00 $
Buy Now
LT1172CS8 280
2583.47 $
613.89 $
16.30 $
Buy Now
LT1172CS8 195
613.89 $
174.20 $
16.30 $
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LT1172CS8 108
613.89 $
174.20 $
16.30 $
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LT1172CS8 31
174.20 $
64.62 $
16.30 $
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LT1172CS8 3
35.25 $
16.30 $
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LT1172CS8 320
1496.02 $
356.75 $
110.95 $
Buy Now

RS Components

ProductStockPriceBuy
LT1172CS8#PBF 27
14.92 GBP
54.53 GBP
254.14 GBP
503.74 GBP
Buy Now
LT1172CS8#PBF 307
254.14 GBP
503.74 GBP
Buy Now
LT1172CS8#PBF 0
13.42 GBP
3003.34 GBP
Buy Now
LT1172IS8#PBF 0
14.48 GBP
3004.37 GBP
Buy Now
LT1172IS8#PBF 24
257.03 GBP
1005.57 GBP
2005.44 GBP
5005.30 GBP
Buy Now
LT1172CN8#PBF 0
13.04 GBP
Buy Now
LT1172CN8#PBF 38
14.31 GBP
103.65 GBP
252.99 GBP
Buy Now
LT1172CN8#PBF 42
103.65 GBP
252.99 GBP
Buy Now
LT1172CT#PBF 0
13.54 GBP
Buy Now
LT1172CT#PBF 6
106.12 GBP
255.69 GBP
505.31 GBP
Buy Now
LT1172CQ#PBF 0
14.21 GBP
Buy Now
LT1172CQ#PBF 0
104.47 GBP
507.32 GBP
1006.79 GBP
2506.43 GBP
Buy Now
LT1172CQ#PBF 0
16.34 GBP
104.47 GBP
507.32 GBP
1006.79 GBP
2506.43 GBP
Buy Now
LT1172CT#PBF 7
15.34 GBP
53.55 GBP
106.12 GBP
255.69 GBP
505.31 GBP
Buy Now
LT1172IS8#PBF 23
17.40 GBP
257.03 GBP
1005.57 GBP
2005.44 GBP
5005.30 GBP
Buy Now
show stock=0hide stock=0

Transfer Multisort Elektronik

ProductStockPriceBuy
LT1172CS8#PBF 59
254.38 $
104.89 $
35.66 $
16.13 $
Buy Now
LT1172CN8#PBF 42
104.29 $
34.94 $
15.39 $
Buy Now
LT1172CT#PBF 11
104.35 $
35.01 $
15.67 $
Buy Now

ComS.I.T.

ProductStockPriceBuy
LT1172CS8TR 200
LT1172CS8 61
LT1172CTPBF 400
LT1172CN8PBF 40
LT1172CN8 20

Schukat electronic

ProductStockPriceBuy
LT1172CTPBF 122
16.10 €
104.55 €
503.80 €
1003.65 €
Buy Now
LT1172CN8PBF 133
14.90 €
103.65 €
503.05 €
1002.95 €
Buy Now
LT1172CS8PBF 126
16.20 €
104.55 €
503.80 €
1003.65 €
Buy Now

Chip1Stop

ProductStockPriceBuy
LT1172CT#PBF 50
503.14 $
103.20 $
13.22 $
Buy Now

Farnell element14

ProductStockPriceBuy
LT1172CS8#PBF 0
1002.45 GBP
252.99 GBP
14.97 GBP
Buy Now
LT1172IS8#PBF 0
1003.18 GBP
253.92 GBP
16.44 GBP
Buy Now
LT1172CN8#PBF 0
5002.13 GBP
2502.21 GBP
1002.27 GBP
502.34 GBP
252.40 GBP
103.42 GBP
14.04 GBP
Buy Now
LT1172HVCT#PBF 0
1003.14 GBP
253.98 GBP
16.52 GBP
Buy Now
LT1172CT#PBF 0
5002.40 GBP
2502.84 GBP
1002.92 GBP
503.00 GBP
254.10 GBP
104.51 GBP
14.98 GBP
Buy Now
LT1172HVCQ#PBF 0
2504.50 GBP
1004.61 GBP
504.71 GBP
254.82 GBP
106.97 GBP
17.53 GBP
Buy Now
LT1172CQ#PBF 0
5003.17 GBP
2503.27 GBP
1003.37 GBP
503.46 GBP
253.56 GBP
104.91 GBP
15.89 GBP
Buy Now
LT1172CT#06PBF 266
11.70 GBP
Buy Now
show stock=0hide stock=0

Available Distributors without stock: 1

element14 Asia-Pacific

ProductStockPriceBuy
LT1172CS8#PBF 0
5005.37 SGD
2505.49 SGD
1005.86 SGD
256.63 SGD
19.51 SGD
Buy Now
LT1172CN8#PBF 0
5004.43 SGD
2504.53 SGD
1004.77 SGD
255.76 SGD
18.68 SGD
Buy Now
LT1172CT#06PBF 0
5005.48 SGD
2505.61 SGD
1005.91 SGD
257.14 SGD
110.74 SGD
Buy Now
LT1172CT#PBF 0
5005.48 SGD
2505.61 SGD
1005.91 SGD
257.14 SGD
110.74 SGD
Buy Now
LT1172CQ#PBF 0
5006.38 SGD
2506.52 SGD
1006.98 SGD
257.88 SGD
111.29 SGD
Buy Now

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LT1172. Optional, compare LT1172 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT1172HV LT1172HV product overviewLT1172HV product overview Linear Technology SO-8, DIP-8, TO220-5, DD-5

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT1172.

V-IN min. 3 V, Current-Limit typ. 2.125 A, V-OUT max. 40 V, Frequency typ. 100 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
7443556260 2.6 31.5 50.0 1.58 18.3 x 18.2 x 9.2
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