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: 12

Buerklin (3)

ProductStockPriceBuy
LT1172CN80Buy Now
LT1172CS830Buy Now
LT1172CT26Buy Now
LT1172IS815Buy Now

Chip-One-Stop (15)

ProductStockPriceBuy
LT1172CN8#PBF1610
14.46 USD
103.75 USD
253.71 USD
503.54 USD
1003.45 USD
2003.29 USD
Buy Now
LT1172CQ#PBF39
16.49 USD
105.46 USD
255.39 USD
Buy Now
LT1172CS8#PBF98
14.98 USD
103.51 USD
503.39 USD
Buy Now
LT1172CS8#PBF908
15.91 USD
104.97 USD
254.92 USD
504.69 USD
1004.58 USD
2004.37 USD
Buy Now
LT1172CSW#PBF187
15.46 USD
104.60 USD
254.54 USD
504.34 USD
1004.23 USD
Buy Now
LT1172CSW#PBF187
15.46 USD
104.60 USD
254.54 USD
504.34 USD
1004.23 USD
Buy Now
LT1172CT#06PBF767
15.72 USD
104.82 USD
254.76 USD
504.54 USD
1004.43 USD
2004.23 USD
Buy Now
LT1172CT#PBF1989
16.19 USD
105.21 USD
255.15 USD
504.91 USD
1004.80 USD
2004.57 USD
Buy Now
LT1172HVCQ#PBF200
16.45 USD
106.31 USD
256.01 USD
505.50 USD
1005.08 USD
2004.89 USD
Buy Now
LT1172HVCQ#PBF200
16.45 USD
106.31 USD
256.01 USD
505.50 USD
1005.08 USD
2004.89 USD
Buy Now
LT1172HVCT#PBF370
17.49 USD
56.40 USD
106.25 USD
505.89 USD
1005.55 USD
2005.42 USD
Buy Now
LT1172HVIQ#PBF1388
111.40 USD
59.69 USD
109.58 USD
259.14 USD
508.92 USD
1008.46 USD
Buy Now
LT1172IN8#PBF185
16.62 USD
105.57 USD
255.51 USD
505.26 USD
1005.13 USD
Buy Now
LT1172IS81700
8507.73 USD
Buy Now
LT1172IS8#PBF659
17.69 USD
56.57 USD
106.41 USD
506.05 USD
1005.70 USD
2005.57 USD
Buy Now

DIGI-KEY (12)

ProductStockPriceBuy
LT1172CN8#PBF12Buy Now
LT1172CT#PBF9Buy Now
LT1172CS8#PBF356
15.83 USD
253.87 USD
1003.00 USD
Buy Now
LT1172CT#PBF1050
15.90 USD
253.92 USD
1002.95 USD
Buy Now
LT1172IN8#PBF1193
16.63 USD
254.40 USD
1003.45 USD
Buy Now
LT1172CQ#PBF1299
16.93 USD
254.60 USD
1003.55 USD
Buy Now
LT1172HVIQ#PBF442
110.43 USD
257.09 USD
1005.84 USD
Buy Now
LT1172HVCQ#PBF290
19.42 USD
256.52 USD
1005.37 USD
Buy Now
LT1172HVCT#PBF272
17.66 USD
255.09 USD
1003.85 USD
Buy Now
LT1172CT#06PBF29
15.83 USD
253.87 USD
1002.95 USD
Buy Now
LT1172CN8#PBF19
14.72 USD
253.14 USD
1002.45 USD
Buy Now
LT1172IS8#PBF269
17.64 USD
255.07 USD
1003.90 USD
Buy Now
LT1172CSW#PBF0
2353.00 USD
Buy Now
LT1172CS8#TRPBF0
25003.10 USD
Buy Now
LT1172CSW#TRPBF0
10003.10 USD
Buy Now
LT1172CT#31PBF0
10003.40 USD
Buy Now
LT1172CQ#TRPBF0
7503.65 USD
Buy Now
LT1172HVCT#06PBF0
3503.85 USD
Buy Now
LT1172IS8#TRPBF0
25004.00 USD
Buy Now
LT1172HVCT#30PBF0
10004.30 USD
Buy Now
LT1172HVCT#31PBF0
10004.30 USD
Buy Now
LT1172HVCQ#TRPBF0
7505.47 USD
Buy Now
LT1172HVIQ#TRPBF0
7505.94 USD
Buy Now
LT1172MJ8#PBF0
500.00 USD
Buy Now
LT1172MJ80
00.00 USD
Buy Now

Element14 (7)

ProductStockPriceBuy
LT1172CN8#PBF23
17.49 USD
254.99 USD
1003.89 USD
Buy Now
LT1172CQ#PBF70
111.00 USD
257.30 USD
1005.72 USD
Buy Now
LT1172CS8#PBF1966
19.25 USD
256.14 USD
1004.80 USD
Buy Now
LT1172CT#06PBF56
19.25 USD
256.14 USD
1004.74 USD
Buy Now
LT1172CT#PBF51
19.37 USD
256.22 USD
1004.80 USD
Buy Now
LT1172HVCQ#PBF9
114.95 USD
2510.35 USD
1008.52 USD
Buy Now
LT1172IS8#PBF132
112.13 USD
258.05 USD
1006.21 USD
Buy Now

FARNELL-ELEMENT14 (7)

ProductStockPriceBuy
LT1172CN8#PBF106Buy Now
LT1172CQ#PBF91Buy Now
LT1172CS8#PBF2179Buy Now
LT1172CT#06PBF457Buy Now
LT1172CT#PBF54Buy Now
LT1172HVCQ#PBF19Buy Now
LT1172IS8#PBF132Buy Now

Gerber-Electronics (1)

ProductStockPriceBuy
LT1172HVCT#0630
17.02 USD
Buy Now

NEWARK (7)

ProductStockPriceBuy
LT1172CN8#PBF91
12.45 USD
252.45 USD
1002.45 USD
Buy Now
LT1172CQ#PBF0
16.93 USD
254.58 USD
1003.55 USD
Buy Now
LT1172CS8#PBF99
15.85 USD
253.87 USD
1003.00 USD
Buy Now
LT1172CS8#TRPBF0
15.20 USD
25003.73 USD
Buy Now
LT1172CT#06PBF10
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
19.46 USD
256.34 USD
1005.37 USD
Buy Now
LT1172HVCT#PBF24
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#PBF71
16.63 USD
254.39 USD
1003.45 USD
Buy Now
LT1172IS8#PBF37
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#PBF57Buy Now
LT1172CN8#PBF295Buy Now
LT1172CQ#PBF62Buy Now
LT1172CS8#PBF27Buy Now
LT1172CS8#PBF295Buy Now
LT1172CT#PBF20Buy Now
LT1172CT#PBF36Buy Now
LT1172IS8#PBF71Buy Now

Ralphs-Electronics (1)

ProductStockPriceBuy
LT1172IN8#PBF1
110.35 USD
Buy Now

Reichelt Elektronik (4)

ProductStockPriceBuy
LT1172CN8#PBF1Buy Now
LT1172CN8#PBF1Buy Now
LT1172CS8#PBF1Buy Now
LT1172CS8#PBF1Buy Now

Schukat (3)

ProductStockPriceBuy
LT1172CN8PBF104Buy Now
LT1172CS8PBF205Buy Now
LT1172CTPBF50Buy Now

TME (3)

ProductStockPriceBuy
LT1172CN8#PBF32Buy Now
LT1172CS8#PBF158Buy Now
LT1172CT#PBF6Buy Now

Available Distributors with stock: 0

no online Distributor with LT1172 stock available

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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