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: 9

Chip One Stop (14)

ProductStockPriceBuy
LT1171CQ#PBF55
19.85 USD
106.01 USD
505.33 USD
Buy Now
LT1171CQ#PBF82
1008.37 USD
Buy Now
LT1171CQ#PBF82
1008.37 USD
Buy Now
LT1171CQ#TRPBF750
7506.56 USD
Buy Now
LT1171CT#PBF666
110.10 USD
1007.70 USD
Buy Now
LT1171HVCQ#PBF79
113.00 USD
Buy Now
LT1171HVCQ#TRPBF2250
7508.23 USD
Buy Now
LT1171HVCT#PBF445
113.20 USD
1009.75 USD
Buy Now
LT1171HVCT#PBF445
113.20 USD
1009.75 USD
Buy Now
LT1171HVIQ450
50016.10 USD
Buy Now
LT1171HVIQ#PBF282
114.90 USD
10011.20 USD
Buy Now
LT1171IQ#PBF270
2507.79 USD
Buy Now
LT1171IQ#TR1500
75017.80 USD
75112.60 USD
Buy Now
LT1171IT#PBF42
113.20 USD
Buy Now

Conrad (2)

ProductStockPriceBuy
LT1171CQ#PBF5Buy Now
LT1171CT#06PBF16Buy Now

Digi-Key (8)

ProductStockPriceBuy
LT1171CT#PBF578
19.10 USD
256.04 USD
1004.85 USD
Buy Now
LT1171CQ#PBF440
19.87 USD
256.55 USD
1005.30 USD
Buy Now
LT1171HVIQ#PBF336
114.61 USD
259.70 USD
1008.20 USD
Buy Now
LT1171IQ#PBF888
110.76 USD
257.15 USD
1005.56 USD
Buy Now
LT1171HVCT#PBF1908
111.79 USD
257.83 USD
1006.32 USD
Buy Now
LT1171HVCQ#PBF147
112.30 USD
258.17 USD
1006.83 USD
Buy Now
LT1171IT#PBF203
111.79 USD
257.83 USD
1006.48 USD
Buy Now
LT1171CT#06PBF21
19.10 USD
256.04 USD
1004.85 USD
Buy Now
PE-68488NL0
7002.30 USD
Buy Now
LT1171CQ#TRPBF0
7505.41 USD
Buy Now
LT1171IQ#TRPBF0
7505.66 USD
Buy Now
LT1171HVCT#30PBF0
1506.78 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#PBF34Buy Now

Element14 (2)

ProductStockPriceBuy
LT1171CT#PBF22
113.75 USD
259.13 USD
1007.32 USD
Buy Now
LT1171IQ#PBF11
116.26 USD
2510.80 USD
1008.51 USD
Buy Now

Farnell Element14 (2)

ProductStockPriceBuy
LT1171CT#PBF22Buy Now
LT1171IQ#PBF11Buy Now

Newark Electronics (1)

ProductStockPriceBuy
LT1171CQ#PBF0
19.62 USD
256.40 USD
1005.20 USD
Buy Now
LT1171CT#06PBF2
14.75 USD
254.75 USD
1004.75 USD
Buy Now
LT1171CT#PBF0
18.98 USD
255.94 USD
1004.75 USD
Buy Now
LT1171HVIQ#PBF0
114.32 USD
259.57 USD
1008.04 USD
Buy Now
LT1171HVIT#PBF0
113.62 USD
259.08 USD
1007.44 USD
Buy Now
LT1171IQ#PBF0
110.63 USD
257.03 USD
1005.45 USD
Buy Now
LT1171IQ#TRPBF0
18.54 USD
7506.10 USD
Buy Now

RS Components (7)

ProductStockPriceBuy
LT1171CQ#PBF13Buy Now
LT1171CQ#PBF4Buy Now
LT1171CT#PBF23Buy Now
LT1171CT#PBF14Buy Now
LT1171HVCT#PBF6Buy Now
LT1171HVCT#PBF81Buy Now
LT1171IT#PBF51Buy Now

Reichelt Elektronik (1)

ProductStockPriceBuy
LT1171CT#PBF1Buy Now

Available Distributors without stock: 1

Buerklin (0)

ProductStockPriceBuy
LT1171CT-PBF0Buy Now

Available Distributors with stock: 13

Arrow Electronics

ProductStockPriceBuy
LT1171HVCQ#TRPBF 2250
7506.80 $
Buy Now
LT1171IQ#TR 1500
19.56 $
7517.17 $
Buy Now
LT1171CQ#TRPBF 750
7505.30 $
Buy Now
LT1171CT#PBF 666
15.75 $
1004.75 $
Buy Now
LT1171HVIQ 575
133.53 $
1030.01 $
5028.50 $
10016.29 $
50014.25 $
Buy Now
LT1171HVCT#PBF 445
17.50 $
1006.20 $
Buy Now
LT1171HVIQ#PBF 282
18.82 $
1008.04 $
Buy Now
LT1171IQ#PBF 270
16.10 $
1005.45 $
Buy Now
LT1171HVCT#PBF 127
17.50 $
1006.20 $
Buy Now
LT1171CQ#PBF 82
16.25 $
1005.20 $
Buy Now
LT1171HVCQ#PBF 79
17.35 $
1006.70 $
Buy Now
LT1171CT#06PBF 50
6004.75 $
Buy Now
LT1171IT#PBF 42
2506.35 $
Buy Now

Digi-Key

ProductStockPriceBuy
LT1171HVCT#PBF 1908
1005.44 €
256.73 €
110.14 €
Buy Now
LT1171IQ#PBF 888
1004.78 €
256.15 €
19.25 €
Buy Now
LT1171CT#PBF 578
1004.17 €
255.19 €
17.82 €
Buy Now
LT1171CQ#PBF 440
1004.56 €
255.63 €
18.49 €
Buy Now
LT1171HVIQ#PBF 336
1007.05 €
258.34 €
112.56 €
Buy Now
LT1171IT#PBF 203
1005.57 €
256.73 €
110.14 €
Buy Now
LT1171HVCQ#PBF 147
1005.88 €
257.02 €
110.58 €
Buy Now
LT1171CT#06PBF 21
1004.17 €
255.19 €
17.82 €
Buy Now
PE-68488NL 0
7001.98 €
Buy Now
LT1171CQ#TRPBF 0
7504.65 €
Buy Now
LT1171IQ#TRPBF 0
7504.87 €
Buy Now
LT1171HVCT#30PBF 0
1505.83 €
Buy Now
LT1171HVCQ#TRPBF 0
7505.96 €
Buy Now
LT1171HVIT#PBF 0
1006.52 €
Buy Now
LT1171HVIQ#TRPBF 0
7507.14 €
Buy Now
show stock=0hide stock=0

Newark element14

ProductStockPriceBuy
LT1171IQ#TRPBF 0
18.54 $
7506.00 $
Buy Now
LT1171CT#06PBF 2
14.75 $
254.75 $
1004.00 $
Buy Now
LT1171HVIQ#PBF 0
114.32 $
259.57 $
1008.00 $
Buy Now
LT1171HVIT#PBF 0
113.62 $
259.08 $
1007.00 $
Buy Now
LT1171CT#PBF 0
18.98 $
255.94 $
1004.00 $
Buy Now
LT1171CQ#PBF 0
19.62 $
256.40 $
1005.00 $
Buy Now
LT1171IQ#PBF 0
110.63 $
257.03 $
1005.00 $
Buy Now
show stock=0hide stock=0

Bristol Electronics

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

Quest Components

ProductStockPriceBuy
LT1171CK 1
119.50 $
Buy Now
LT1171CQ 9
55.25 $
27.00 $
110.50 $
Buy Now
LT1171CQ#PBF 41
374.88 $
45.63 $
111.25 $
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
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

ComS.I.T.

ProductStockPriceBuy
LT1171CTPBF 5
LT1171CQTR 550
LT1171CT 150
LT1171ITPBF 95
LT1171CQ#PBF 15
LT1171IQPBF 20

element14 Asia-Pacific

ProductStockPriceBuy
LT1171CT#PBF 22
111.00 $
257.30 $
1005.85 $
Buy Now
LT1171IQ#PBF 11
113.01 $
258.64 $
1006.80 $
Buy Now

Farnell element14

ProductStockPriceBuy
LT1171CT#PBF 22
17.35 GBP
254.51 GBP
1003.87 GBP
Buy Now
LT1171IQ#PBF 9
18.71 GBP
255.41 GBP
1004.44 GBP
Buy Now

TME Electronic Components

ProductStockPriceBuy
LT1171HVIQ#PBF 45
113.00 $
512.00 $
259.20 $
Buy Now
LT1171CT#PBF 35
110.10 $
38.95 $
107.50 $
256.70 $
Buy Now
LT1171CQ#PBF 40
110.90 $
39.83 $
108.68 $
Buy Now

Chip One Exchange

ProductStockPriceBuy
LT1171CQ 10115
LT1171CT7#30 40
LT1171CQ#TR 7762

Chip1Stop

ProductStockPriceBuy
LT1171HVCQ#PBF 79
113.00 $
Buy Now
LT1171HVIQ#PBF 282
114.90 $
10011.20 $
Buy Now
LT1171HVIQ 450
50016.10 $
Buy Now
LT1171IQ#TR 1500
75017.80 $
75112.60 $
Buy Now
LT1171HVCT#PBF 445
113.20 $
1009.75 $
Buy Now
LT1171CQ#TRPBF 750
7506.56 $
Buy Now
LT1171CT#PBF 666
110.10 $
1007.70 $
Buy Now
LT1171CQ#PBF 82
1008.37 $
Buy Now
LT1171CQ#PBF 55
19.85 $
106.81 $
505.69 $
Buy Now
LT1171HVCQ#TRPBF 2250
7508.23 $
Buy Now
LT1171IQ#PBF 270
2507.79 $
Buy Now

New Advantage Corporation

ProductStockPriceBuy
LT1171CQ 150 Buy Now
MTLLT1171BK 8
196.12 $
Buy Now
LT1171IQ#PBF 1000
507.10 $
Buy Now

RS Components

ProductStockPriceBuy
LT1171IT#PBF 51
107.89 GBP
257.05 GBP
506.69 GBP
756.60 GBP
Buy Now
LT1171HVCT#PBF 6
18.80 GBP
108.62 GBP
258.53 GBP
508.41 GBP
758.30 GBP
Buy Now
LT1171HVCT#PBF 81
108.62 GBP
258.53 GBP
508.41 GBP
758.30 GBP
Buy Now
LT1171CT#PBF 14
105.29 GBP
205.13 GBP
Buy Now
LT1171CT#PBF 23
15.75 GBP
105.29 GBP
205.13 GBP
Buy Now
LT1171CQ#PBF 13
17.36 GBP
107.23 GBP
257.13 GBP
507.05 GBP
756.95 GBP
Buy Now
LT1171CQ#PBF 4
107.23 GBP
257.13 GBP
507.05 GBP
756.95 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)
0Results
Module
Fresh Search
Replacement Search with
0% tolerance (0)
10% tolerance (0)
25% tolerance (0)
50% tolerance (0)
add to Compare
Last Tweets
Meet us at this weeks PCIM tradeshow in Nuremberg, Tue+Wed, Details under info@dcdcselector.com
With the help of #OEMsecrets we show for all Selectors and products worldwide distributor inventory and prices. https://t.co/udaDPmshky
Update for the DC/DC Buck-Boost Converter Selector with additional products, fresh equivalent suggestions and more: https://t.co/C8PXhcizYQ
Feedback
ajax-loader.gif
Loading. Please wait.