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: 16

Buerklin (4)

ProductStockPriceBuy
LT1172CN8#PBF149Buy Now
LT1172CS8#PBF30Buy Now
LT1172CT#PBF26Buy Now
LT1172IS8#PBF114Buy Now

Chip One Stop (1)

ProductStockPriceBuy
LT1172CS8#PBF74
16.37 USD
104.09 USD
503.63 USD
Buy Now

Conrad COM (2)

ProductStockPriceBuy
LT1172CN8#PBF4Buy Now
LT1172CT#PBF2Buy Now

Conrad UK (2)

ProductStockPriceBuy
LT1172CN8#PBF4Buy Now
LT1172CT#PBF2Buy Now

Digi-Key (13)

ProductStockPriceBuy
LT1172CN8#PBF3044
14.82 USD
253.20 USD
1002.50 USD
Buy Now
LT1172IN8#PBF124
16.77 USD
254.49 USD
1003.52 USD
Buy Now
LT1172IS8#PBF3125
17.79 USD
255.17 USD
1003.98 USD
Buy Now
LT1172CT#PBF340
16.02 USD
254.00 USD
1003.01 USD
Buy Now
LT1172HVCQ#PBF650
19.61 USD
256.65 USD
1005.48 USD
Buy Now
LT1172HVIQ#PBF346
110.64 USD
257.23 USD
1005.96 USD
Buy Now
LT1172HVCT#PBF146
17.82 USD
255.19 USD
1003.93 USD
Buy Now
LT1172CS8#TRPBF0
25003.16 USD
Buy Now
LT1172CS8#TRPBF1217
16.80 USD
256.07 USD
1003.79 USD
2503.48 USD
Buy Now
LT1172CS8#TRPBF1217
16.80 USD
256.07 USD
1003.79 USD
2503.48 USD
Buy Now
LT1172IS8#TRPBF0
25004.08 USD
Buy Now
LT1172IS8#TRPBF1900
18.87 USD
257.92 USD
1004.90 USD
2504.49 USD
Buy Now
LT1172IS8#TRPBF1900
18.87 USD
257.92 USD
1004.90 USD
2504.49 USD
Buy Now
LT1172CS8#PBF0
15.95 USD
253.95 USD
1003.06 USD
Buy Now
LT1172CQ#PBF5
17.07 USD
254.70 USD
1003.62 USD
Buy Now
LT1172CT#06PBF18
15.95 USD
253.95 USD
1003.01 USD
Buy Now
LT1172CSW#PBF0
2353.06 USD
Buy Now
LT1172CSW#TRPBF0
10003.16 USD
Buy Now
LT1172CT#31PBF0
10003.47 USD
Buy Now
LT1172CQ#TRPBF0
7503.72 USD
Buy Now
LT1172HVCT#06PBF0
2003.93 USD
Buy Now
LT1172HVCT#30PBF0
10004.39 USD
Buy Now
LT1172HVCT#31PBF0
10004.39 USD
Buy Now
LT1172HVCQ#TRPBF0
7505.58 USD
Buy Now
LT1172HVIQ#TRPBF0
7506.06 USD
Buy Now

Distrelec (2)

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

Element14 (2)

ProductStockPriceBuy
LT1172CQ#PBF39
110.79 USD
257.17 USD
1005.53 USD
Buy Now
LT1172CT#06PBF0
19.08 USD
256.02 USD
1004.59 USD
Buy Now
LT1172HVCQ#PBF1
114.65 USD
2510.14 USD
1008.36 USD
Buy Now

Farnell Element14 (4)

ProductStockPriceBuy
LT1172CN8#PBF16Buy Now
LT1172CQ#PBF58Buy Now
LT1172CS8#PBF0Buy Now
LT1172CT#06PBF369Buy Now
LT1172CT#PBF0Buy Now
LT1172HVCQ#PBF4Buy Now
LT1172HVCT#PBF0Buy Now
LT1172IS8#PBF0Buy Now

Gerber Electronics (1)

ProductStockPriceBuy
LT1172HVCT#0630
17.02 USD
Buy Now

Mouser Electronics (10)

ProductStockPriceBuy
LT1172CT#PBF350
16.18 USD
105.66 USD
254.10 USD
1003.14 USD
Buy Now
LT1172HVCT#PBF200
18.03 USD
107.36 USD
255.33 USD
1004.06 USD
Buy Now
LT1172HVIQ#PBF144
110.91 USD
1010.00 USD
257.41 USD
1006.11 USD
Buy Now
LT1172CN8#PBF68
14.95 USD
104.53 USD
253.28 USD
1002.56 USD
Buy Now
LT1172IN8#PBF125
16.95 USD
106.36 USD
254.60 USD
1003.61 USD
Buy Now
LT1172CQ#PBF150
17.26 USD
106.65 USD
254.81 USD
1003.71 USD
Buy Now
LT1172HVCQ#PBF50
19.88 USD
109.04 USD
256.81 USD
1005.61 USD
Buy Now
LT1172CSW#PBF131
16.11 USD
105.60 USD
254.05 USD
1003.14 USD
Buy Now
LT1172CS8#PBF1500 On Order
16.11 USD
105.60 USD
254.05 USD
1003.14 USD
Buy Now
LT1172IS8#PBF400 On Order
18.00 USD
107.33 USD
255.30 USD
1004.08 USD
Buy Now
LT1172CS8#TRPBFNone
25003.24 USD
Buy Now
LT1172CT#31PBFNone
10003.59 USD
Buy Now
LT1172CQ#TRPBFNone
7503.81 USD
Buy Now
LT1172CSW#TRPBFNone
10003.24 USD
Buy Now
LT1172HVCQ#TRPBFNone
7505.73 USD
Buy Now
LT1172HVIQ#TRPBFNone
7506.21 USD
Buy Now
LT1172IS8#TRPBFNone
25004.19 USD
Buy Now
LT1172CT#06PBFNone
2503.09 USD
Buy Now
LT1172HVCT#06PBFNone
2004.05 USD
Buy Now
LT1172HVCT#31PBFNone
10004.54 USD
Buy Now
LT1172HVCT#30PBFNone
10004.54 USD
Buy Now

Newark Electronics (2)

ProductStockPriceBuy
LT1172CN8#PBF66
12.41 USD
252.41 USD
1002.41 USD
Buy Now
LT1172CS8#PBF0
15.85 USD
253.87 USD
1003.00 USD
Buy Now
LT1172HVCQ#PBF85
12.09 USD
252.09 USD
1002.09 USD
Buy Now

RS Components (7)

ProductStockPriceBuy
LT1172CN8#PBF65Buy Now
LT1172CN8#PBF160Buy Now
LT1172CQ#PBF36Buy Now
LT1172CS8#PBF75Buy Now
LT1172CS8#PBF151Buy Now
LT1172CT#PBF36Buy Now
LT1172CT#PBF50Buy 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 (2)

ProductStockPriceBuy
LT1172CN8PBF129Buy Now
LT1172CS8PBF0Buy Now
LT1172CTPBF48Buy Now

Transfer Multisort Elektronik (3)

ProductStockPriceBuy
LT1172CN8#PBF23Buy Now
LT1172CS8#PBF129Buy Now
LT1172CT#PBF32Buy Now

Available Distributors without stock: 1

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 15

Arrow Electronics

ProductStockPriceBuy
LT1172IN8 1180
177.46 $
1030.61 $
5016.61 $
1008.80 $
5008.52 $
10008.39 $
25008.25 $
50008.13 $
100008.01 $
250007.66 $
Buy Now
LT1172HVCQ#PBF 283
16.52 $
1005.37 $
Buy Now
LT1172CSW#PBF 187
13.58 $
1003.00 $
Buy Now
LT1172CT#06PBF 17
13.75 $
1002.95 $
Buy Now
LT1172IN8 0
177.46 $
1030.61 $
5016.61 $
1008.80 $
5008.52 $
10008.39 $
25008.25 $
50008.13 $
100008.01 $
250007.66 $
Buy Now
LT1172MJ8 0 Buy Now
LT1172MJ8 0 Buy Now
LT1172MK 0
19.39 $
258.40 $
1005.32 $
Buy Now
LT1172HVIQ 0 Buy Now
LT1172HVIQ 0 Buy Now
LT1172CQ 0 Buy Now
LT1172IS8 0
189.19 $
1035.25 $
5019.12 $
10010.14 $
5009.81 $
10009.66 $
25009.50 $
50009.36 $
100009.22 $
250008.82 $
Buy Now
LT1172IS8 0
189.19 $
1035.25 $
5019.12 $
10010.14 $
5009.81 $
10009.66 $
25009.50 $
50009.36 $
100009.22 $
250008.82 $
Buy Now
LT1172HVCQ#PBF 0
16.52 $
1005.37 $
Buy Now
LT1172CT#PBF 0
13.75 $
1002.95 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT1172IS8#PBF 3125
1003.27 €
254.25 €
16.40 €
Buy Now
LT1172CN8#PBF 3044
1002.05 €
252.63 €
13.96 €
Buy Now
LT1172IS8#TRPBF 1900
2503.69 €
1004.02 €
256.50 €
17.28 €
Buy Now
LT1172IS8#TRPBF 1900
2503.69 €
1004.02 €
256.50 €
17.28 €
Buy Now
LT1172CS8#TRPBF 1217
2502.86 €
1003.12 €
254.99 €
15.58 €
Buy Now
LT1172CS8#TRPBF 1217
2502.86 €
1003.12 €
254.99 €
15.58 €
Buy Now
LT1172HVCQ#PBF 650
1004.50 €
255.46 €
17.89 €
Buy Now
LT1172HVIQ#PBF 346
1004.89 €
255.94 €
18.74 €
Buy Now
LT1172CT#PBF 340
1002.47 €
253.28 €
14.94 €
Buy Now
LT1172HVCT#PBF 146
1003.23 €
254.26 €
16.42 €
Buy Now
LT1172IN8#PBF 124
1002.89 €
253.69 €
15.56 €
Buy Now
LT1172CQ#PBF 5
1002.97 €
253.86 €
15.81 €
Buy Now
LT1172CS8#TRPBF 0
25002.60 €
Buy Now
LT1172IS8#TRPBF 0
25003.35 €
Buy Now
LT1172CS8#PBF 0
1002.51 €
253.24 €
14.89 €
Buy Now
show stock=0hide stock=0

Newark element14

ProductStockPriceBuy
LT1172CN8#PBF 66
12.41 $
252.41 $
1002.41 $
Buy Now
LT1172HVCQ#PBF 85
12.09 $
252.09 $
1002.09 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT1172CT#PBF 350
16.03 $
105.53 $
254.00 $
1003.01 $
Buy Now
LT1172HVCT#PBF 200
17.83 $
107.18 $
255.19 $
1003.93 $
Buy Now
LT1172HVIQ#PBF 144
110.65 $
109.76 $
257.23 $
1005.96 $
Buy Now
LT1172CN8#PBF 68
14.83 $
104.42 $
253.20 $
1002.50 $
Buy Now
LT1172IN8#PBF 125
16.78 $
106.21 $
254.49 $
1003.52 $
Buy Now
LT1172CQ#PBF 150
17.09 $
106.49 $
254.70 $
1003.62 $
Buy Now
LT1172HVCQ#PBF 50
19.63 $
108.82 $
256.65 $
1005.48 $
Buy Now
LT1172CSW#PBF 131
15.96 $
105.46 $
253.95 $
1003.06 $
Buy Now
LT1172CS8#PBF 0
15.96 $
105.46 $
253.95 $
1003.06 $
Buy Now
LT1172IS8#PBF 0
17.80 $
107.15 $
255.17 $
1003.98 $
Buy Now
LT1172CS8#TRPBF 0
25003.16 $
Buy Now
LT1172CT#31PBF 0
10003.47 $
Buy Now
LT1172CQ#TRPBF 0
7503.72 $
Buy Now
LT1172CSW#TRPBF 0
10003.16 $
Buy Now
LT1172HVCQ#TRPBF 0
7505.58 $
Buy Now
show stock=0hide stock=0

Bristol Electronics

ProductStockPriceBuy
LT1172CS8#TR 371 Buy Now
LT1172CS8TR 1112 Buy Now
LT1172CQ 25
15.82 $
63.79 $
152.91 $
Buy Now
LT1172CQ 4 Buy Now
LT1172CS8#PBF 17 Buy Now
LT1172CN8 76 Buy Now
LT1172HVMK 4
124.00 $
Buy Now
LT1172CSR 2 Buy Now
LT1172CT 142 Buy Now
LT1172CS8 74 Buy Now
LT1172CS8 39 Buy Now
LT1172CS8 677 Buy Now
LT1172CT#PBF 4
15.60 $
Buy Now

Quest Components

ProductStockPriceBuy
LT1172CN8 3
33.44 $
15.16 $
Buy Now
LT1172CN8 1
15.16 $
Buy Now
LT1172CN8 16
73.23 $
34.30 $
16.45 $
Buy Now
LT1172CQ 20
63.90 $
25.20 $
17.80 $
Buy Now
LT1172CS 289
12.85 $
Buy Now
LT1172CS 24
45.37 $
27.16 $
110.74 $
Buy Now
LT1172CS8 280
1712.73 $
642.94 $
16.30 $
Buy Now
LT1172CS8 80
642.94 $
73.15 $
16.30 $
Buy Now
LT1172CS8 320
1785.47 $
425.66 $
111.31 $
Buy Now
LT1172CT 988
8062.28 $
1872.48 $
16.21 $
Buy Now
LT1172CT 6
73.11 $
34.14 $
16.21 $
Buy Now
LT1172CT 8
73.10 $
34.13 $
16.20 $
Buy Now
LT1172CT 10
73.11 $
34.14 $
16.21 $
Buy Now
LT1172CT 37
54.65 $
26.20 $
19.30 $
Buy Now
LT1172CT 7
73.11 $
34.14 $
16.21 $
Buy Now

TME Electronic Components

ProductStockPriceBuy
LT1172CS8#PBF 14
16.13 $
35.66 $
104.89 $
254.38 $
Buy Now
LT1172CN8#PBF 23
15.39 $
34.94 $
104.29 $
Buy Now
LT1172CT#PBF 32
15.67 $
35.01 $
104.35 $
Buy Now

ComS.I.T.

ProductStockPriceBuy
LT1172CN8PBF 40
LT1172CS8TR 195
LT1172CN8 20
LT1172CS8 61
LT1172CTPBF 30

element14 Asia-Pacific

ProductStockPriceBuy
LT1172CQ#PBF 39
18.63 $
255.74 $
1004.42 $
Buy Now
LT1172CN8#PBF 45
15.88 $
253.90 $
1003.04 $
Buy Now
LT1172HVCQ#PBF 1
111.72 $
258.11 $
1006.68 $
Buy Now

Farnell element14

ProductStockPriceBuy
LT1172CT#06PBF 369
14.91 GBP
252.65 GBP
1002.16 GBP
Buy Now
LT1172CQ#PBF 58
15.78 GBP
253.33 GBP
1002.75 GBP
Buy Now
LT1172CN8#PBF 16
13.86 GBP
103.46 GBP
252.30 GBP
502.23 GBP
1002.16 GBP
Buy Now
LT1172HVCQ#PBF 4
17.53 GBP
106.97 GBP
254.82 GBP
504.71 GBP
1004.61 GBP
Buy Now
LT1172CT#PBF 0
14.98 GBP
104.51 GBP
254.10 GBP
503.00 GBP
1002.92 GBP
Buy Now
show stock=0hide stock=0

Schukat electronic

ProductStockPriceBuy
LT1172CN8PBF 129
15.20 €
103.15 €
502.60 €
1002.50 €
Buy Now
LT1172CTPBF 48
15.60 €
103.75 €
503.10 €
1003.00 €
Buy Now
LT1172CS8PBF 0
15.65 €
103.85 €
503.25 €
1003.15 €
Buy Now
show stock=0hide stock=0

Chip One Exchange

ProductStockPriceBuy
LT1172CN8 45
LT1172CN8 150
LT1172CN8 750
LT1172CS8 55
LT1172CS8 38

Chip1Stop

ProductStockPriceBuy
LT1172CS8#PBF 74
503.63 $
104.09 $
16.37 $
Buy Now

New Advantage Corporation

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

RS Components

ProductStockPriceBuy
LT1172CQ#PBF 36
264.69 GBP
Buy Now
LT1172CN8#PBF 160
104.52 GBP
253.71 GBP
Buy Now
LT1172CN8#PBF 65
15.34 GBP
104.52 GBP
253.71 GBP
Buy Now
LT1172CT#PBF 36
24.69 GBP
264.09 GBP
Buy Now
LT1172CT#PBF 50
264.09 GBP
Buy Now
LT1172CS8#PBF 75
15.50 GBP
55.06 GBP
254.62 GBP
504.18 GBP
Buy Now
LT1172CS8#PBF 151
55.06 GBP
254.62 GBP
504.18 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
0Results
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10% tolerance (0)
25% tolerance (0)
50% tolerance (0)
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