LT1171 Boost Converter Overview

Description

Manufacturer
 
Category
Sub-Category

LT1171 is a 40.00 V, 3.75 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 LT1171 is available in 2 package option(s): TO220-5 DD-5 .

For LT1171 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.? 3.75 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 2
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP
DIP
TO TO220-5
DDPAK DD-5

LT1171 Datasheet

Link to the most up-to-date LT1171 datasheet and the product page for EVM, tools and support information.

LT1171

LT1171 Price breaks and distributor sample stock

LT1171 prices and available online distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 10

Chip One Stop (7)

ProductStockPriceBuy
LT1171CQ#PBF100
19.42 USD
108.76 USD
508.67 USD
1007.95 USD
Buy Now
LT1171CQ#PBF90
19.33 USD
106.62 USD
256.51 USD
Buy Now
LT1171CT#PBF47
18.62 USD
106.12 USD
256.02 USD
Buy Now
LT1171HVCQ#PBF54
111.50 USD
510.10 USD
108.23 USD
Buy Now
LT1171HVCT#PBF9
111.70 USD
510.30 USD
Buy Now
LT1171HVIQ#PBF41
113.50 USD
511.90 USD
109.65 USD
Buy Now
LT1171IQ#PBF277
19.94 USD
58.77 USD
107.10 USD
Buy Now

Conrad COM (2)

ProductStockPriceBuy
LT1171CQ#PBF4Buy Now
LT1171CT#06PBF12Buy Now

Conrad UK (2)

ProductStockPriceBuy
LT1171CQ#PBF4Buy Now
LT1171CT#06PBF12Buy Now

Digi-Key (7)

ProductStockPriceBuy
LT1171IQ#PBF393
110.76 USD
257.15 USD
1005.56 USD
Buy Now
LT1171CQ#PBF423
19.87 USD
256.55 USD
1005.30 USD
Buy Now
LT1171HVCT#PBF1377
111.79 USD
257.83 USD
1006.32 USD
Buy Now
LT1171HVCQ#PBF214
112.30 USD
258.17 USD
1006.83 USD
Buy Now
LT1171HVIQ#PBF949
114.61 USD
259.70 USD
1008.20 USD
Buy Now
LT1171IT#PBF177
111.79 USD
257.83 USD
1006.48 USD
Buy Now
LT1171CT#06PBF97
19.10 USD
256.04 USD
1004.85 USD
Buy Now
LT1171CT#PBF0
19.10 USD
256.04 USD
1004.85 USD
Buy Now
LT1171HVCT#30PBF0
112.69 USD
258.42 USD
1006.78 USD
Buy Now
PE-68488NL0
7002.43 USD
Buy Now
LT1171CQ#TRPBF0
7505.41 USD
Buy Now
LT1171IQ#TRPBF0
7505.66 USD
Buy Now
LT1171HVCQ#TRPBF0
7506.94 USD
Buy Now
LT1171HVIT#PBF0
1007.59 USD
Buy Now
LT1171HVIQ#TRPBF0
7508.30 USD
Buy Now
DC139A-B0
1102.00 USD
Buy Now

Distrelec (1)

ProductStockPriceBuy
LT1171CT#PBF10Buy Now

Element14 (1)

ProductStockPriceBuy
LT1171CT#PBF0Buy Now
LT1171IQ#PBF2Buy Now

Newark Electronics (1)

ProductStockPriceBuy
LT1171CT#06PBF2
18.98 USD
255.94 USD
1004.75 USD
Buy Now

RS Components (5)

ProductStockPriceBuy
LT1171CQ#PBF10Buy Now
LT1171CT#PBF24Buy Now
LT1171CT#PBF50Buy Now
LT1171HVCT#PBF18Buy Now
LT1171IT#PBF46Buy Now

Reichelt Elektronik (1)

ProductStockPriceBuy
LT1171CT#PBF1Buy Now

Transfer Multisort Elektronik (3)

ProductStockPriceBuy
LT1171CQ#PBF36Buy Now
LT1171CT#PBF35Buy Now
LT1171HVIQ#PBF44Buy Now

Available Distributors without stock: 1

Farnell Element14 (0)

ProductStockPriceBuy
LT1171CT#PBF0Buy Now
LT1171IQ#PBF0Buy Now

Available Distributors with stock: 14

Arrow Electronics

ProductStockPriceBuy
LT1171IQ#PBF 239
1005.45 $
16.10 $
Buy Now
LT1171HVCQ#PBF 54
1006.70 $
17.35 $
Buy Now
LT1171HVCT#PBF 9
1006.20 $
17.50 $
Buy Now

Digi-Key

ProductStockPriceBuy
LT1171HVCT#PBF 1377
1005.35 €
256.63 €
19.98 €
Buy Now
LT1171HVIQ#PBF 949
1006.94 €
258.21 €
112.37 €
Buy Now
LT1171CQ#PBF 423
1004.49 €
255.55 €
18.36 €
Buy Now
LT1171IQ#PBF 393
1004.71 €
256.05 €
19.11 €
Buy Now
LT1171HVCQ#PBF 214
1005.79 €
256.92 €
110.41 €
Buy Now
LT1171IT#PBF 177
1005.48 €
256.63 €
19.98 €
Buy Now
LT1171CT#06PBF 97
1004.10 €
255.11 €
17.70 €
Buy Now
LT1171CT#PBF 0
1004.10 €
255.11 €
17.70 €
Buy Now
LT1171HVCT#30PBF 0
1005.74 €
257.13 €
110.74 €
Buy Now
PE-68488NL 0
7002.06 €
Buy Now
LT1171CQ#TRPBF 0
7504.58 €
Buy Now
LT1171IQ#TRPBF 0
7504.79 €
Buy Now
LT1171HVCQ#TRPBF 0
7505.87 €
Buy Now
LT1171HVIT#PBF 0
1006.42 €
Buy Now
LT1171HVIQ#TRPBF 0
7507.03 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LT1171IQ#PBF 239
1005.45 $
26.10 $
Buy Now
LT1171HVCQ#PBF 54
27.35 $
Buy Now
LT1171IQ#PBF 14
16.10 $
Buy Now
LT1171HVCT#PBF 9
27.50 $
Buy Now

Newark element14

ProductStockPriceBuy
LT1171CT#06PBF 2
18.98 $
255.94 $
1004.75 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT1171IQ#PBF 255
110.78 $
109.88 $
257.15 $
1005.56 $
Buy Now
LT1171HVIT#PBF 100
113.86 $
1012.71 $
259.19 $
1007.59 $
Buy Now
LT1171HVCQ#PBF 136
112.32 $
1011.29 $
258.17 $
1006.83 $
Buy Now
LT1171HVIQ#PBF 96
114.63 $
1013.41 $
259.70 $
1008.20 $
Buy Now
LT1171IT#PBF 184
111.81 $
1010.82 $
257.83 $
1006.48 $
Buy Now
LT1171CQ#PBF 0
19.88 $
109.06 $
256.55 $
1005.30 $
Buy Now
LT1171HVCT#PBF 0
111.81 $
1010.82 $
257.83 $
1006.32 $
Buy Now
LT1171CT#PBF 0
19.11 $
108.35 $
256.04 $
1004.84 $
Buy Now
LT1171IQ#TRPBF 0
7505.66 $
Buy Now
LT1171CT#06PBF 0
1504.84 $
Buy Now
LT1171CQ#TRPBF 0
7505.41 $
Buy Now
LT1171HVCQ#TRPBF 0
7506.94 $
Buy Now
LT1171HVIQ#TRPBF 0
7508.30 $
Buy Now
LT1171HVCT#30PBF 0
10006.78 $
Buy Now
LT1171CT 0 Buy Now
show stock=0hide stock=0

Bristol Electronics

ProductStockPriceBuy
LT1171CT 36 Buy Now
LT1171CT 136 Buy Now
LT1171CT 24 Buy Now
LT1171CT 7 Buy Now
LT1171IT 282
110.53 $
46.84 $
95.26 $
254.91 $
524.56 $
1064.32 $
Buy Now
LT1171CQ 2 Buy Now
LT1171CK 2
118.00 $
Buy Now

Quest Components

ProductStockPriceBuy
LT1171CK 1
119.50 $
Buy Now
LT1171CQ 9
55.25 $
27.00 $
110.50 $
Buy Now
LT1171CQ#PBF 8
45.46 $
27.28 $
110.92 $
Buy Now
LT1171CQ#TR 58
374.88 $
45.63 $
111.25 $
Buy Now
LT1171CQ#TRPBF 17
45.85 $
27.80 $
111.70 $
Buy Now
LT1171CT 8
55.00 $
26.66 $
19.99 $
Buy Now
LT1171CT 60
396.16 $
116.66 $
19.99 $
Buy Now
LT1171CT#PBF 36
298.31 $
98.98 $
113.47 $
Buy Now
LT1171HVCT 4
47.50 $
210.00 $
115.00 $
Buy Now
LT1171HVCT 36
268.91 $
59.90 $
113.20 $
Buy Now
LT1171HVCT#30 27
268.91 $
59.90 $
113.20 $
Buy Now
LT1171IT 980
6314.55 $
3864.76 $
112.99 $
Buy Now
LT1171IT 225
776.11 $
296.58 $
114.10 $
Buy Now

TME Electronic Components

ProductStockPriceBuy
LT1171CQ#PBF 36
110.90 $
39.83 $
108.68 $
Buy Now
LT1171CT#PBF 35
110.10 $
38.95 $
107.50 $
256.70 $
Buy Now
LT1171HVIQ#PBF 44
113.70 $
512.70 $
259.72 $
Buy Now

ComS.I.T.

ProductStockPriceBuy
LT1171IQPBF 20
LT1171CT 604
LT1171CQ#PBF 15
LT1171CQTR 550
LT1171CTPBF 5
LT1171ITPBF 95

element14 Asia-Pacific

ProductStockPriceBuy
LT1171IQ#PBF 2
112.54 $
Buy Now

Chip One Exchange

ProductStockPriceBuy
LT1171CT7#30 40
LT1171CQ 10115
LT1171CQ 737
LT1171CQ#TR 7762

Chip1Stop

ProductStockPriceBuy
LT1171HVCT#PBF 9
510.30 $
111.70 $
Buy Now
LT1171CQ#PBF 100
1007.95 $
508.67 $
19.42 $
Buy Now
LT1171HVCQ#PBF 54
108.23 $
510.10 $
111.50 $
Buy Now
LT1171IQ#PBF 277
107.10 $
58.77 $
19.94 $
Buy Now
LT1171HVIQ#PBF 41
109.65 $
511.90 $
113.50 $
Buy Now
LT1171CQ#PBF 90
256.51 $
106.62 $
19.33 $
Buy Now
LT1171CT#PBF 47
256.02 $
106.12 $
18.62 $
Buy Now

New Advantage Corporation

ProductStockPriceBuy
LT1171CQ 150 Buy Now
MTLLT1171BK 8
196.12 $
Buy Now

RS Components

ProductStockPriceBuy
LT1171HVCT#PBF 18
108.82 GBP
258.40 GBP
Buy Now
LT1171CT#PBF 50
106.75 GBP
256.42 GBP
Buy Now
LT1171IT#PBF 46
108.77 GBP
258.37 GBP
Buy Now
LT1171CQ#PBF 60
107.37 GBP
257.02 GBP
Buy Now
LT1171CT#PBF 19
17.09 GBP
106.75 GBP
256.42 GBP
Buy Now

Available Distributors without stock: 2

Avnet

ProductStockPriceBuy
MTLLT1171BK 0

Farnell element14

ProductStockPriceBuy
LT1171IQ#PBF 0
18.71 GBP
255.41 GBP
1004.44 GBP
Buy Now

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LT1171. Optional, compare LT1171 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT1171HV LT1171HV product overviewLT1171HV product overview Linear Technology TO220-5, DD-5
50% LT1172 LT1172 product overviewLT1172 product overview Linear Technology SO-8, DIP-8, TO220-5, DD-5
50% 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 LT1171.

V-IN min. 3 V, Current-Limit typ. 3.75 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)
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Module
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25% tolerance (0)
50% tolerance (0)
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