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: 0

no online Distributor with LT1172 stock available

Available Distributors with stock: 13

Digi-Key

ProductStockPriceBuy
LT1172IS8#PBF 4429
10004.23 €
5004.85 €
3005.32 €
1005.79 €
256.42 €
107.04 €
17.83 €
Buy Now
LT1172CS8#TRPBF 3973
10003.39 €
5003.89 €
2504.27 €
1004.64 €
255.14 €
105.65 €
16.28 €
Buy Now
LT1172CS8#TRPBF 3973
10003.39 €
5003.89 €
2504.27 €
1004.64 €
255.14 €
105.65 €
16.28 €
Buy Now
LT1172CS8#TRPBF 2500
25003.17 €
Buy Now
LT1172CS8#PBF 2319
25003.11 €
10003.23 €
5003.71 €
3004.07 €
1004.43 €
254.91 €
105.38 €
15.98 €
Buy Now
LT1172IS8#TRPBF 2045
10004.42 €
5005.08 €
2505.57 €
1006.06 €
256.72 €
107.37 €
18.19 €
Buy Now
LT1172IS8#TRPBF 2045
10004.42 €
5005.08 €
2505.57 €
1006.06 €
256.72 €
107.37 €
18.19 €
Buy Now
LT1172CT#PBF 769
25003.11 €
10003.23 €
5003.71 €
2504.07 €
1004.43 €
504.91 €
105.38 €
15.98 €
Buy Now
LT1172HVCQ#PBF 307
10005.06 €
5005.81 €
2506.37 €
1006.93 €
507.68 €
108.43 €
19.36 €
Buy Now
LT1172HVIQ#PBF 269
10005.50 €
5006.32 €
2506.93 €
1007.54 €
508.35 €
109.17 €
110.19 €
Buy Now
LT1172CQ#PBF 4
10003.84 €
5004.41 €
2504.83 €
1005.26 €
505.83 €
106.40 €
17.11 €
Buy Now
LT1172HVCT#PBF 1
10004.23 €
5004.85 €
2505.32 €
1005.79 €
506.42 €
107.04 €
17.83 €
Buy Now
LT1172IS8#TRPBF 0
25004.14 €
Buy Now
LT1172CN8#PBF 0
25002.57 €
10002.71 €
5003.21 €
2503.58 €
1003.96 €
504.35 €
104.83 €
15.41 €
Buy Now
LT1172IN8#PBF 0
10003.68 €
5004.22 €
2504.63 €
1005.04 €
505.58 €
106.13 €
16.81 €
Buy Now
show stock=0hide stock=0

Newark element14

ProductStockPriceBuy
LT1172HVCQ#PBF 85
12.09 $
252.09 $
1002.09 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT1172IS8#PBF 378
17.80 $
107.15 $
505.17 $
2504.68 $
Buy Now
LT1172CS8#PBF 188
15.96 $
105.46 $
503.95 $
2503.58 $
Buy Now
LT1172CT#PBF 239
16.03 $
105.53 $
504.00 $
2503.58 $
Buy Now
LT1172CSW#PBF 261
15.96 $
105.46 $
503.95 $
2503.58 $
Buy Now
LT1172HVCT#PBF 145
17.83 $
107.18 $
505.19 $
2504.68 $
Buy Now
LT1172HVCQ#PBF 47
19.63 $
108.82 $
506.65 $
2505.61 $
Buy Now
LT1172HVIQ#PBF 52
110.65 $
109.76 $
507.23 $
2506.10 $
Buy Now
LT1172CN8#PBF 0
14.83 $
104.42 $
503.20 $
2502.89 $
Buy Now
LT1172IN8#PBF 0
16.78 $
106.21 $
504.49 $
2504.07 $
Buy Now
LT1172CQ#PBF 0
17.09 $
106.49 $
504.70 $
2504.25 $
Buy Now
LT1172CT#31PBF 0
16.93 $
106.35 $
504.59 $
2504.12 $
Buy Now
LT1172HVCT#30PBF 0
18.73 $
108.00 $
505.79 $
2505.24 $
Buy Now
LT1172HVCT#31PBF 0
18.73 $
108.00 $
505.79 $
2505.24 $
Buy Now
LT1172CS8#TRPBF 0
25003.79 $
Buy Now
LT1172HVCT#06PBF 0
1505.17 $
2504.68 $
Buy Now
show stock=0hide stock=0

Bristol Electronics

ProductStockPriceBuy
LT1172CS8#PBF 17 Buy Now
LT1172CS8 62 Buy Now
LT1172CS8 677 Buy Now
LT1172CS8 74 Buy Now
LT1172CS8 39 Buy Now
LT1172CS8 45 Buy Now
LT1172CT#PBF 4
15.60 $
Buy Now
LT1172CSR 2 Buy Now
LT1172CS8#TR 371 Buy Now
LT1172HVMK 2
124.00 $
Buy Now
LT1172IS8 12 Buy Now
LT1172CSW 1266 Buy Now
LT1172CQ 4 Buy Now
LT1172CQ 25
15.82 $
63.79 $
152.91 $
Buy Now
LT1172CN8 76 Buy Now

Quest Components

ProductStockPriceBuy
LT1172CN8 1
15.16 $
Buy Now
LT1172CN8 16
73.23 $
34.30 $
16.45 $
Buy Now
LT1172CN8 3
33.44 $
15.16 $
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 $
Buy Now
LT1172CS8 280
2583.47 $
613.89 $
16.30 $
Buy Now
LT1172CS8 320
1446.22 $
346.97 $
111.31 $
Buy Now
LT1172CS8 80
642.94 $
73.15 $
16.30 $
Buy Now
LT1172CT 438
1872.48 $
652.69 $
16.21 $
Buy Now
LT1172CT 6
73.11 $
34.14 $
16.21 $
Buy Now
LT1172CT 10
64.55 $
35.18 $
16.21 $
Buy Now
LT1172CT 3
35.18 $
16.21 $
Buy Now
LT1172CT 37
54.65 $
26.20 $
19.30 $
Buy Now
LT1172CT 8
73.10 $
34.13 $
16.20 $
Buy Now

TME Electronic Components

ProductStockPriceBuy
LT1172CS8#PBF 162
16.13 $
35.66 $
104.89 $
254.38 $
Buy Now
LT1172CT#PBF 23
15.67 $
35.01 $
104.35 $
Buy Now

ComS.I.T.

ProductStockPriceBuy
LT1172CS8 61
LT1172CTPBF 400
LT1172CN8PBF 40
LT1172CN8 20
LT1172CS8TR 195

element14 Asia-Pacific

ProductStockPriceBuy
LT1172CQ#PBF 3
1006.91 SGD
257.49 SGD
111.27 SGD
Buy Now

Farnell element14

ProductStockPriceBuy
LT1172CQ#PBF 3
1003.37 GBP
503.46 GBP
253.56 GBP
104.91 GBP
15.89 GBP
Buy Now
LT1172CT#06PBF 332
1002.55 GBP
502.73 GBP
252.96 GBP
103.30 GBP
13.98 GBP
Buy Now

Schukat electronic

ProductStockPriceBuy
LT1172CTPBF 35
15.80 €
103.95 €
503.30 €
1003.17 €
Buy Now
LT1172CN8PBF 99
15.20 €
103.15 €
502.60 €
1002.50 €
Buy Now
LT1172CS8PBF 258
15.76 €
103.96 €
503.36 €
1003.24 €
Buy Now

Chip 1 Exchange

ProductStockPriceBuy
LT1172CS8 TRPBF 1308
LT1172CS8 76
LT1172CS8 114
LT1172CS8 55
LT1172CS8 469
LT1172CS8#TRPBF 1620
LT1172CN8 300
LT1172CN8 90
LT1172CN8 750

New Advantage Corporation

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

RS Components

ProductStockPriceBuy
LT1172IS8#PBF 70
2003.82 GBP
1004.11 GBP
504.40 GBP
104.81 GBP
Buy Now
LT1172CN8#PBF 58
253.71 GBP
104.52 GBP
15.34 GBP
Buy Now
LT1172CT#PBF 20
264.09 GBP
24.69 GBP
Buy Now
LT1172CT#PBF 20
264.09 GBP
Buy Now
LT1172CQ#PBF 14
264.69 GBP
Buy Now
LT1172CS8#PBF 43
504.18 GBP
254.62 GBP
55.06 GBP
15.50 GBP
Buy Now
LT1172CN8#PBF 148
253.71 GBP
104.52 GBP
Buy Now
LT1172CS8#PBF 437
504.18 GBP
254.62 GBP
55.06 GBP
Buy Now

Available Distributors without stock: 1

Richardson RFPD

ProductStockPriceBuy
LT1172CN8#PBF 0
503.45 $
1003.35 $
5003.16 $
10003.07 $
50002.96 $
Buy Now
LT1172CQ#PBF 0
1504.92 $
5004.65 $
10004.52 $
50004.35 $
Buy Now
LT1172CQ#TRPBF 0
7504.80 $
10004.67 $
50004.49 $
Buy Now
LT1172CS8#PBF 0
2004.14 $
5003.91 $
10003.80 $
50003.65 $
Buy Now
LT1172CS8#TRPBF 0
25003.88 $
50003.72 $
Buy Now
LT1172CSW#PBF 0
474.26 $
1004.14 $
5003.91 $
10003.80 $
50003.65 $
Buy Now
LT1172CSW#TRPBF 0
10003.88 $
50003.72 $
Buy Now
LT1172CT#06PBF 0
2004.14 $
5003.91 $
10003.80 $
50003.65 $
Buy Now
LT1172CT#31PBF 0
504.92 $
1004.77 $
5004.51 $
10004.39 $
50004.21 $
Buy Now
LT1172CT#PBF 0
2004.14 $
5003.91 $
10003.80 $
50003.65 $
Buy Now
LT1172HVCQ#PBF 0
1006.48 $
5006.12 $
10005.96 $
50005.72 $
Buy Now
LT1172HVCQ#TRPBF 0
7506.29 $
10006.12 $
50005.89 $
Buy Now
LT1172HVCT#06PBF 0
1505.42 $
5005.11 $
10004.98 $
50004.78 $
Buy Now
LT1172HVCT#30PBF 0
506.24 $
1006.06 $
5005.72 $
10005.57 $
50005.36 $
Buy Now
LT1172HVCT#31PBF 0
506.24 $
1006.06 $
5005.72 $
10005.57 $
50005.36 $
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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