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.

OEMSecrets.com
findchips.com

Available Distributors with stock: 14

Buerklin (4)

ProductStockPriceBuy
LT1172CN8149Buy Now
LT1172CS830Buy Now
LT1172CT26Buy Now
LT1172IS8-PBF114Buy Now

Chip One Stop (14)

ProductStockPriceBuy
LT1172CQ#PBF25
16.45 USD
Buy Now
LT1172CS8#PBF75
16.20 USD
104.32 USD
503.53 USD
Buy Now
LT1172CS8#PBF1177
15.43 USD
1004.00 USD
Buy Now
LT1172CSW#PBF187
15.43 USD
1004.00 USD
Buy Now
LT1172CT#06PBF767
15.69 USD
1004.19 USD
Buy Now
LT1172HVCQ#PBF326
16.52 USD
1005.37 USD
Buy Now
LT1172HVCQ#PBF326
16.52 USD
1005.37 USD
Buy Now
LT1172HVCT#PBF418
1005.50 USD
Buy Now
LT1172HVIQ1
1121.76 USD
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LT1172HVIQ#PBF319
2507.93 USD
Buy Now
LT1172IN81830
177.46 USD
1064.60 USD
Buy Now
LT1172IN8#PBF152
16.19 USD
1004.56 USD
Buy Now
LT1172IS82243
150.50 USD
1035.25 USD
10010.14 USD
5009.08 USD
10008.82 USD
Buy Now
LT1172IS8#PBF680
16.28 USD
1005.22 USD
Buy Now

Conrad COM (2)

ProductStockPriceBuy
LT1172CN8#PBF9Buy Now
LT1172CT#PBF6Buy Now

Digi-Key (10)

ProductStockPriceBuy
LT1172CN8#PBF1450
14.82 USD
253.20 USD
1002.50 USD
Buy Now
LT1172CS8#PBF1150
15.95 USD
253.95 USD
1003.06 USD
Buy Now
LT1172CT#PBF283
16.02 USD
254.00 USD
1003.01 USD
Buy Now
LT1172IN8#PBF1163
16.77 USD
254.49 USD
1003.52 USD
Buy Now
LT1172IS8#PBF2149
17.79 USD
255.17 USD
1003.98 USD
Buy Now
LT1172HVIQ#PBF489
110.64 USD
257.23 USD
1005.96 USD
Buy Now
LT1172CQ#PBF1148
17.07 USD
254.70 USD
1003.62 USD
Buy Now
LT1172HVCQ#PBF290
19.61 USD
256.65 USD
1005.48 USD
Buy Now
LT1172HVCT#PBF145
17.82 USD
255.19 USD
1003.93 USD
Buy Now
LT1172CT#06PBF18
15.95 USD
253.95 USD
1003.01 USD
Buy Now
LT1172CSW#PBF0
2353.06 USD
Buy Now
LT1172CS8#TRPBF0
25003.16 USD
Buy Now
LT1172CSW#TRPBF0
10003.16 USD
Buy Now
LT1172CT#31PBF0
2003.47 USD
Buy Now
LT1172CQ#TRPBF0
7503.72 USD
Buy Now
LT1172HVCT#06PBF0
2003.93 USD
Buy Now
LT1172IS8#TRPBF0
25004.08 USD
Buy Now
LT1172HVCT#30PBF0
1504.39 USD
Buy Now
LT1172HVCT#31PBF0
1504.39 USD
Buy Now
LT1172HVCQ#TRPBF0
7505.58 USD
Buy Now
LT1172HVIQ#TRPBF0
7506.06 USD
Buy Now
LT1172MJ8#PBF0
500.00 USD
Buy Now
LT1172MJ80
10.00 USD
Buy Now

Distrelec (3)

ProductStockPriceBuy
LT1172CN8#PBF58Buy Now
LT1172CS8#PBF70Buy Now
LT1172CT#PBF29Buy Now
LT1172IS8#PBF0Buy Now

Element14 (7)

ProductStockPriceBuy
LT1172CN8#PBF155
17.42 USD
254.93 USD
1003.85 USD
Buy Now
LT1172CQ#PBF55
110.89 USD
257.24 USD
1005.59 USD
Buy Now
LT1172CS8#PBF391
19.16 USD
256.08 USD
1004.72 USD
Buy Now
LT1172CT#06PBF53
19.16 USD
256.08 USD
1004.70 USD
Buy Now
LT1172CT#PBF48
19.28 USD
256.16 USD
1004.75 USD
Buy Now
LT1172HVCQ#PBF7
114.80 USD
2510.25 USD
1008.44 USD
Buy Now
LT1172IS8#PBF13
112.01 USD
257.97 USD
1006.15 USD
Buy Now

Farnell Element14 (7)

ProductStockPriceBuy
LT1172CN8#PBF201Buy Now
LT1172CQ#PBF74Buy Now
LT1172CS8#PBF635Buy Now
LT1172CT#06PBF454Buy Now
LT1172CT#PBF49Buy Now
LT1172HVCQ#PBF15Buy Now
LT1172IS8#PBF33Buy Now

Gerber Electronics (1)

ProductStockPriceBuy
LT1172HVCT#0630
17.02 USD
Buy Now

Newark Electronics (5)

ProductStockPriceBuy
LT1172CN8#PBF78
13.49 USD
252.99 USD
1002.45 USD
Buy Now
LT1172CQ#PBF0
16.93 USD
254.58 USD
1003.55 USD
Buy Now
LT1172CS8#PBF89
15.85 USD
253.87 USD
1003.00 USD
Buy Now
LT1172CS8#TRPBF0
15.20 USD
25003.73 USD
Buy Now
LT1172CT#06PBF2
15.90 USD
253.93 USD
1002.95 USD
Buy Now
LT1172CT#PBF0
15.90 USD
253.93 USD
1002.95 USD
Buy Now
LT1172HVCQ#PBF85
14.80 USD
254.80 USD
1004.80 USD
Buy Now
LT1172HVCT#PBF0
17.70 USD
255.12 USD
1003.85 USD
Buy Now
LT1172HVIQ#PBF0
110.40 USD
256.95 USD
1005.84 USD
Buy Now
LT1172HVIQ#TRPBF0
19.93 USD
7507.09 USD
Buy Now
LT1172IN8#PBF41
16.63 USD
254.39 USD
1003.45 USD
Buy Now
LT1172IS8#PBF0
17.61 USD
255.04 USD
1003.90 USD
Buy Now
LT1172IS8#TR0
110.31 USD
25009.97 USD
Buy Now
LT1172IS8#TRPBF0
16.78 USD
25004.86 USD
Buy Now

RS Components (8)

ProductStockPriceBuy
LT1172CN8#PBF48Buy Now
LT1172CN8#PBF239Buy Now
LT1172CQ#PBF48Buy Now
LT1172CS8#PBF28Buy Now
LT1172CS8#PBF196Buy Now
LT1172CT#PBF16Buy Now
LT1172CT#PBF14Buy Now
LT1172IS8#PBF70Buy Now

Ralphs Industrial Electronic Supplies (1)

ProductStockPriceBuy
LT1172IN8#PBF1
110.35 USD
Buy Now

Reichelt Elektronik (2)

ProductStockPriceBuy
LT1172CN8#PBF1Buy Now
LT1172CS8#PBF1Buy Now

Schukat Electronic (3)

ProductStockPriceBuy
LT1172CN8PBF129Buy Now
LT1172CS8PBF305Buy Now
LT1172CTPBF50Buy Now

Transfer Multisort Elektronik (3)

ProductStockPriceBuy
LT1172CN830Buy Now
LT1172CS8112Buy Now
LT1172CT46Buy Now

Available Distributors with stock: 16

Arrow Electronics

ProductStockPriceBuy
LT1172IS8 2243
189.19 $
1035.25 $
5019.12 $
10010.14 $
5009.08 $
10008.82 $
25008.57 $
50008.45 $
100008.33 $
250008.00 $
Buy Now
LT1172IN8 1830
177.46 $
1030.61 $
5016.61 $
1008.80 $
5007.89 $
10007.66 $
25007.44 $
50007.34 $
100007.24 $
250006.95 $
Buy Now
LT1172CT#06PBF 767
13.75 $
1002.95 $
Buy Now
LT1172IS8#PBF 680
14.67 $
1003.90 $
Buy Now
LT1172HVCT#PBF 418
14.92 $
1003.85 $
Buy Now
LT1172MK 374
19.39 $
258.40 $
1005.32 $
Buy Now
LT1172HVCQ#PBF 326
16.52 $
1005.37 $
Buy Now
LT1172CSW#PBF 187
13.58 $
1003.00 $
Buy Now
LT1172MJ8 13
1154.95 $
Buy Now
LT1172HVIQ 1
1121.76 $
Buy Now
LT1172IN8 0 Buy Now
LT1172MJ8/883 0 Buy Now
LT1172CQ 0 Buy Now
LT1172IS8#PBF 0
7003.90 $
Buy Now
LT1172HVCQ#PBF 0
3005.37 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT1172IS8#PBF 2149
1003.33 €
254.33 €
16.52 €
Buy Now
LT1172CN8#PBF 1450
1002.09 €
252.68 €
14.03 €
Buy Now
LT1172IN8#PBF 1163
1002.95 €
253.76 €
15.67 €
Buy Now
LT1172CS8#PBF 1150
1002.56 €
253.30 €
14.98 €
Buy Now
LT1172CQ#PBF 1148
1003.03 €
253.93 €
15.92 €
Buy Now
LT1172HVIQ#PBF 489
1004.99 €
256.05 €
18.91 €
Buy Now
LT1172HVCQ#PBF 290
1004.58 €
255.57 €
18.04 €
Buy Now
LT1172CT#PBF 283
1002.52 €
253.35 €
15.04 €
Buy Now
LT1172HVCT#PBF 145
1003.29 €
254.34 €
16.55 €
Buy Now
LT1172CT#06PBF 18
1002.52 €
253.30 €
14.98 €
Buy Now
LT1172CSW#PBF 0
2352.56 €
Buy Now
LT1172CS8#TRPBF 0
25002.65 €
Buy Now
LT1172CSW#TRPBF 0
10002.65 €
Buy Now
LT1172CT#31PBF 0
2002.90 €
Buy Now
LT1172CQ#TRPBF 0
7503.12 €
Buy Now
show stock=0hide stock=0

Newark element14

ProductStockPriceBuy
LT1172IN8#PBF 41
16.63 $
254.39 $
1003.45 $
Buy Now
LT1172CS8#PBF 89
15.85 $
253.87 $
1003.00 $
Buy Now
LT1172CT#PBF 0
15.90 $
253.93 $
1002.95 $
Buy Now
LT1172CS8#TRPBF 0
15.20 $
25003.73 $
Buy Now
LT1172HVIQ#PBF 0
110.40 $
256.95 $
1005.84 $
Buy Now
LT1172IS8#PBF 0
17.61 $
255.04 $
1003.90 $
Buy Now
LT1172HVCT#PBF 0
17.70 $
255.12 $
1003.85 $
Buy Now
LT1172HVIQ#TRPBF 0
19.93 $
7507.09 $
Buy Now
LT1172CQ#PBF 0
16.93 $
254.58 $
1003.55 $
Buy Now
LT1172HVCQ#PBF 85
14.80 $
254.80 $
1004.80 $
Buy Now
LT1172CT#06PBF 2
15.90 $
253.93 $
1002.95 $
Buy Now
LT1172CN8#PBF 78
13.49 $
252.99 $
1002.45 $
Buy Now
LT1172IS8#TR 0
110.31 $
25009.97 $
Buy Now
LT1172IS8#TRPBF 0
16.78 $
25004.86 $
Buy Now
show stock=0hide stock=0

Mouser Electronics

ProductStockPriceBuy
LT1172CS8#PBF 1500
15.83 $
105.46 $
253.88 $
1003.00 $
Buy Now
LT1172IS8#PBF 500
17.63 $
107.16 $
255.08 $
1003.90 $
Buy Now
LT1172HVCT#PBF 200
17.66 $
107.18 $
255.09 $
1003.85 $
Buy Now
LT1172HVIQ#PBF 150
110.42 $
109.77 $
257.09 $
1005.84 $
Buy Now
LT1172CN8#PBF 100
14.72 $
104.43 $
253.14 $
1002.45 $
Buy Now
LT1172CT#PBF 200
15.90 $
105.53 $
253.93 $
1002.96 $
Buy Now
LT1172IN8#PBF 50
16.63 $
106.22 $
254.41 $
1003.45 $
Buy Now
LT1172CQ#PBF 50
16.93 $
106.50 $
254.61 $
1003.55 $
Buy Now
LT1172HVCQ#PBF 50
19.41 $
108.83 $
256.52 $
1005.37 $
Buy Now
LT1172CSW#PBF 0
15.83 $
105.46 $
253.88 $
1003.00 $
Buy Now
LT1172IS8 0
1100.00 $
Buy Now
LT1172CS8 0
1100.00 $
Buy Now
LT1172CN8 0
1100.00 $
Buy Now
LT1172CT 0
1100.00 $
Buy Now
LT1172CQ 0
1100.00 $
Buy Now
show stock=0hide stock=0

Bristol Electronics

ProductStockPriceBuy
LT1172CQ 25
15.82 $
63.79 $
152.91 $
Buy Now
LT1172CS8 2500 Buy Now
LT1172CS8 74 Buy Now
LT1172CS8 677 Buy Now
LT1172CT#PBF 4
15.60 $
Buy Now
LT1172CS8#TR 371 Buy Now
LT1172CS8TR 1112 Buy Now
LT1172HVMK 4
124.00 $
Buy Now

Quest Components

ProductStockPriceBuy
LT1172CN8 3
33.44 $
15.16 $
Buy Now
LT1172CN8 16
73.23 $
34.30 $
16.45 $
Buy Now
LT1172CQ 20
63.90 $
25.20 $
17.80 $
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LT1172CS 289
12.85 $
Buy Now
LT1172CS 24
45.37 $
27.16 $
110.74 $
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LT1172CS8 80
642.94 $
73.15 $
16.30 $
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LT1172CS8 320
1785.47 $
425.66 $
111.31 $
Buy Now
LT1172CS8#PBF 100
602.93 $
73.38 $
16.75 $
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LT1172CT 988
8062.28 $
1872.48 $
16.21 $
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LT1172CT 6
73.11 $
34.14 $
16.21 $
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LT1172CT 8
73.10 $
34.13 $
16.20 $
Buy Now
LT1172CT 37
54.65 $
26.20 $
19.30 $
Buy Now
LT1172CT#PBF 3
25.00 $
17.50 $
Buy Now
LT1172HVCT 640
4114.50 $
964.88 $
111.25 $
Buy Now
LT1172HVCT#06 942
9413.05 $
5763.19 $
18.70 $
Buy Now

basicEparts

ProductStockPriceBuy
LT1172CS8 40 Buy Now
LT1172CT 24 Buy Now

ComS.I.T.

ProductStockPriceBuy
LT1172CS8 61
LT1172CN8PBF 40
LT1172CS8TR 195
LT1172CN8 20

element14 Asia-Pacific

ProductStockPriceBuy
LT1172CT#PBF 48
17.42 $
254.93 $
1003.80 $
Buy Now
LT1172HVCQ#PBF 7
111.84 $
258.20 $
1006.75 $
Buy Now
LT1172CQ#PBF 55
18.71 $
255.79 $
1004.47 $
Buy Now
LT1172CT#06PBF 53
17.33 $
254.86 $
1003.76 $
Buy Now
LT1172CN8#PBF 155
15.94 $
253.94 $
1003.08 $
Buy Now
LT1172IS8#PBF 0
19.61 $
256.38 $
1004.92 $
Buy Now
LT1172CS8#PBF 391
17.33 $
254.86 $
1003.77 $
Buy Now
show stock=0hide stock=0

Farnell element14

ProductStockPriceBuy
LT1172CT#PBF 49
14.96 GBP
252.83 GBP
1002.44 GBP
Buy Now
LT1172HVCQ#PBF 15
17.73 GBP
254.96 GBP
1004.38 GBP
Buy Now
LT1172CQ#PBF 74
15.78 GBP
253.33 GBP
1002.75 GBP
Buy Now
LT1172CT#06PBF 454
14.91 GBP
252.65 GBP
1002.16 GBP
Buy Now
LT1172CN8#PBF 201
14.05 GBP
252.42 GBP
1002.00 GBP
Buy Now
LT1172CS8#PBF 642
14.97 GBP
252.99 GBP
1002.45 GBP
Buy Now
LT1172IS8#PBF 13
16.44 GBP
253.92 GBP
1003.18 GBP
Buy Now

Schukat electronic

ProductStockPriceBuy
LT1172CS8PBF 305
16.35 €
104.25 €
503.55 €
1003.40 €
Buy Now
LT1172CTPBF 50
16.15 €
104.05 €
503.35 €
1003.25 €
Buy Now
LT1172CN8PBF 129
15.35 €
103.55 €
502.95 €
1002.85 €
Buy Now

TME Electronic Components

ProductStockPriceBuy
LT1172CT#PBF 46
15.67 $
35.01 $
104.35 $
Buy Now
LT1172CN8#PBF 30
14.46 $
34.09 $
103.55 $
Buy Now
LT1172CS8#PBF 107
16.13 $
35.66 $
104.89 $
254.38 $
Buy Now

Chip One Exchange

ProductStockPriceBuy
LT1172CS8 55
LT1172CS8 38
LT1172CN8 750
LT1172CN8 150
LT1172CN8 45

Chip1Stop

ProductStockPriceBuy
LT1172CS8#PBF 75
16.20 $
104.32 $
503.53 $
Buy Now
LT1172CSW#PBF 187
15.43 $
1004.00 $
Buy Now
LT1172HVIQ 1
1121.76 $
Buy Now
LT1172IN8 1830
177.46 $
1064.60 $
Buy Now
LT1172CQ#PBF 25
16.45 $
Buy Now
LT1172HVCQ#PBF 326
16.52 $
1005.37 $
Buy Now
LT1172CT#06PBF 767
15.69 $
1004.19 $
Buy Now
LT1172IS8 2243
150.50 $
10010.14 $
10008.82 $
Buy Now
LT1172IS8#PBF 680
16.28 $
1005.22 $
Buy Now
LT1172CS8#PBF 1177
15.43 $
1004.00 $
Buy Now
LT1172HVCT#PBF 418
1005.50 $
Buy Now
LT1172IN8#PBF 152
16.19 $
1004.56 $
Buy Now
LT1172HVIQ#PBF 319
2507.93 $
Buy Now

New Advantage Corporation

ProductStockPriceBuy
LT1172CS8 6 Buy Now
LT1172CN8 3 Buy Now
LT1172IS8 4 Buy Now

RS Components

ProductStockPriceBuy
LT1172CS8#PBF 196
103.31 GBP
253.14 GBP
503.10 GBP
753.06 GBP
Buy Now
LT1172CN8#PBF 239
103.22 GBP
252.88 GBP
502.72 GBP
752.69 GBP
Buy Now
LT1172CN8#PBF 48
15.09 GBP
103.22 GBP
252.88 GBP
502.72 GBP
752.69 GBP
Buy Now
LT1172CS8#PBF 28
15.24 GBP
103.31 GBP
253.14 GBP
503.10 GBP
753.06 GBP
Buy Now
LT1172CT#PBF 14
104.28 GBP
204.10 GBP
303.93 GBP
503.70 GBP
Buy Now
LT1172CT#PBF 16
24.46 GBP
104.28 GBP
204.10 GBP
303.93 GBP
503.70 GBP
Buy Now
LT1172IS8#PBF 70
105.50 GBP
255.41 GBP
505.35 GBP
755.28 GBP
Buy Now
LT1172CQ#PBF 48
105.03 GBP
204.83 GBP
304.62 GBP
504.35 GBP
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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