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: 0

no online Distributor with LT1171 stock available

Available Distributors with stock: 11

Arrow Electronics

ProductStockPriceBuy
LT1171HVCQ#TRPBF 750
1007.58 $
Buy Now
LT1171CT#06PBF 500
2505.67 $
1005.81 $
257.02 $
110.57 $
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LT1171IQ#PBF 454
10005.80 $
5006.03 $
2506.17 $
1006.50 $
257.86 $
111.83 $
Buy Now
LT1171HVCT#PBF 199
2507.40 $
1007.57 $
259.16 $
113.79 $
Buy Now
LT1171CQ#PBF 109
10005.69 $
5005.92 $
2506.05 $
1006.37 $
257.71 $
111.61 $
Buy Now
LT1171HVCQ#PBF 29
10007.05 $
5007.33 $
2507.50 $
1007.90 $
259.55 $
114.37 $
Buy Now
LT1171HVCT#PBF 4
10006.76 $
5007.03 $
2507.19 $
1007.57 $
259.16 $
113.79 $
Buy Now
LT1171CQ 0 Buy Now
LT1171CT#06PBF 0
10005.18 $
5005.39 $
2505.51 $
1005.81 $
Buy Now
LT1171HVCQ#TRPBF 0
7507.04 $
Buy Now
LT1171HVIT#PBF 0
10008.11 $
5008.44 $
2508.64 $
1009.09 $
5010.99 $
Buy Now
LT1171CT#PBF 0
1005.19 $
Buy Now
LT1171IT#PBF 0
10006.88 $
5007.15 $
2507.32 $
1007.70 $
Buy Now
LT1171HVIQ#TRPBF 0
7508.43 $
Buy Now
LT1171HVCT#30PBF 0
10007.57 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT1171CT#PBF 1089
5005.07 €
2505.19 €
1005.46 €
256.60 €
19.94 €
Buy Now
LT1171HVCT#30PBF 1000
5007.11 €
2507.27 €
1007.66 €
259.26 €
113.94 €
Buy Now
LT1171HVCT#PBF 718
5006.61 €
2506.76 €
1007.12 €
258.61 €
112.97 €
Buy Now
LT1171IQ#PBF 657
5005.67 €
2505.80 €
1006.11 €
257.39 €
111.12 €
Buy Now
LT1171HVIQ#PBF 401
5008.27 €
2508.46 €
1008.90 €
2510.77 €
116.22 €
Buy Now
LT1171CQ#PBF 358
5005.57 €
2505.70 €
1005.99 €
257.25 €
110.92 €
Buy Now
LT1171IT#PBF 161
5006.73 €
2506.88 €
1007.24 €
258.76 €
113.19 €
Buy Now
LT1171HVCQ#PBF 69
5006.89 €
2507.05 €
1007.42 €
258.97 €
113.52 €
Buy Now
LT1171CT#06PBF 53
5005.07 €
2505.19 €
1005.46 €
256.60 €
19.94 €
Buy Now
PE-68488NL 0
7002.17 €
Buy Now
LT1171CQ#TRPBF 0
7505.69 €
Buy Now
LT1171IQ#TRPBF 0
7505.81 €
Buy Now
LT1171HVCQ#TRPBF 0
7507.02 €
Buy Now
LT1171HVIQ#TRPBF 0
7508.40 €
Buy Now
LT1171HVIT#PBF 0
1008.54 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LT1171CT#06PBF 500
2505.67 $
1005.81 $
257.02 $
210.57 $
Buy Now
LT1171IQ#PBF 454
10005.80 $
5006.03 $
2506.17 $
1006.50 $
257.86 $
211.83 $
Buy Now
LT1171HVCT#PBF 199
2507.40 $
1007.57 $
259.16 $
113.79 $
Buy Now
LT1171CQ#PBF 109
10005.69 $
5005.92 $
2506.05 $
1006.37 $
257.71 $
211.61 $
Buy Now
LT1171IQ#PBF 64
2506.47 $
1006.77 $
258.19 $
212.33 $
Buy Now
LT1171HVCQ#PBF 29
10007.05 $
5007.33 $
2507.50 $
1007.90 $
259.55 $
114.37 $
Buy Now
LT1171HVCT#PBF 11
2507.55 $
1007.89 $
259.54 $
1114.37 $
Buy Now
LT1171HVCT#PBF 4
10006.76 $
5007.03 $
2507.19 $
1007.57 $
259.16 $
113.79 $
Buy Now

Avnet

ProductStockPriceBuy
MTLLT1171BK 1

Mouser Electronics

ProductStockPriceBuy
LT1171CQ#PBF 532
112.22 $
258.12 $
1006.71 $
2506.37 $
5006.23 $
10005.99 $
Buy Now
LT1171HVCT#PBF 532
114.52 $
259.64 $
1007.97 $
2507.57 $
5007.40 $
10007.12 $
Buy Now
LT1171HVIT#PBF 99
117.42 $
2511.57 $
1009.57 $
2509.09 $
5008.88 $
Buy Now
LT1171CT#PBF 100
19.45 $
256.28 $
1005.46 $
Buy Now
LT1171CT#06PBF 100
111.13 $
257.39 $
1006.11 $
2505.80 $
5005.67 $
10005.45 $
Buy Now
LT1171IQ#PBF 164
112.45 $
258.27 $
1006.84 $
2506.49 $
5006.35 $
10006.10 $
Buy Now
LT1171IT#PBF 169
114.77 $
259.81 $
1008.11 $
2507.70 $
5007.53 $
10007.24 $
Buy Now
LT1171HVCQ#PBF 47
115.13 $
2510.05 $
1008.31 $
2507.89 $
5007.71 $
10007.42 $
Buy Now
LT1171HVIQ#PBF 44
118.16 $
2512.06 $
1009.97 $
2509.47 $
5009.26 $
Buy Now
LT1171CQ#TRPBF 0
7506.13 $
Buy Now
LT1171IQ#TRPBF 0
7506.25 $
Buy Now
LT1171HVCQ#TRPBF 0
7507.55 $
Buy Now
LT1171HVIQ#TRPBF 0
7509.04 $
Buy Now
LT1171HVCT#30PBF 0
10007.65 $
Buy Now
LT1171CQ 0 Buy Now
show stock=0hide stock=0

Bristol Electronics

ProductStockPriceBuy
LT1171CQ 2 Buy Now
LT1171CQ 65 Buy Now
LT1171IQ#TR 35
110.53 $
46.84 $
95.26 $
254.91 $
Buy Now
LT1171CK 2
118.00 $
Buy Now
LT1171IT 282
110.53 $
46.84 $
95.26 $
254.91 $
524.56 $
1064.32 $
Buy Now
LT1171CT 36 Buy Now
LT1171CT 24 Buy Now
LT1171CT 136 Buy Now

Quest Components

ProductStockPriceBuy
LT1171CK 1
119.50 $
Buy Now
LT1171CQ 9
55.25 $
27.00 $
110.50 $
Buy Now
LT1171CQ 101
376.48 $
117.00 $
110.50 $
Buy Now
LT1171CQ 1
28.75 $
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#TR 101
346.94 $
107.50 $
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
LT1171IQ#TR 28
296.58 $
47.05 $
114.10 $
Buy Now
LT1171IT 980
6314.55 $
3864.76 $
112.99 $
Buy Now
LT1171IT 225
776.11 $
296.58 $
114.10 $
Buy Now

RS Components

ProductStockPriceBuy
LT1171CQ#PBF 29
257.02 GBP
107.37 GBP
Buy Now
LT1171IT#PBF 35
258.37 GBP
108.77 GBP
Buy Now
LT1171HVCT#PBF 315
258.40 GBP
108.82 GBP
Buy Now
LT1171CT#PBF 35
256.42 GBP
106.75 GBP
17.09 GBP
Buy Now
LT1171CT#PBF 28
256.42 GBP
106.75 GBP
Buy Now

TME Electronic Components

ProductStockPriceBuy
LT1171HVIQ#PBF 4
259.72 $
512.70 $
113.70 $
Buy Now
LT1171CT#PBF 40
256.88 $
107.70 $
39.19 $
110.30 $
Buy Now
LT1171CQ#PBF 30
108.68 $
39.83 $
110.90 $
Buy Now

ComS.I.T.

ProductStockPriceBuy
LT1171CQTR 550
LT1171CTPBF 5
LT1171CT 604
LT1171ITPBF 95

New Advantage Corporation

ProductStockPriceBuy
MTLLT1171BK 8
196.12 $
Buy Now

Available Distributors without stock: 2

Richardson RFPD

ProductStockPriceBuy
LT1171CQ#PBF 0
1006.80 $
5006.62 $
10006.45 $
50006.20 $
Buy Now
LT1171IT#PBF 0
1008.22 $
5008.00 $
10007.78 $
50007.49 $
Buy Now
LT1171IQ#TRPBF 0
7506.91 $
10006.72 $
50006.47 $
Buy Now
LT1171HVIQ#PBF 0
5010.70 $
10010.10 $
5009.83 $
10009.57 $
50009.21 $
Buy Now
LT1171HVCT#PBF 0
1008.08 $
5007.85 $
10007.65 $
50007.36 $
Buy Now
LT1171HVIQ#TRPBF 0
7509.98 $
10009.72 $
50009.34 $
Buy Now
LT1171HVCQ#TRPBF 0
7508.34 $
10008.12 $
50007.81 $
Buy Now
LT1171HVCQ#PBF 0
1008.42 $
5008.19 $
10007.98 $
50007.67 $
Buy Now
LT1171IQ#PBF 0
1006.93 $
5006.74 $
10006.56 $
50006.31 $
Buy Now
LT1171CQ#TRPBF 0
7506.77 $
10006.59 $
50006.34 $
Buy Now
LT1171HVIT#PBF 0
5010.26 $
1009.69 $
5009.42 $
10009.18 $
50008.83 $
Buy Now
LT1171CT#06PBF 0
1006.19 $
5006.03 $
10005.87 $
50005.64 $
Buy Now
LT1171CT#PBF 0
1006.19 $
5006.03 $
10005.87 $
50005.64 $
Buy Now
LT1171HVCT#30PBF 0
509.19 $
1008.68 $
5008.45 $
10008.23 $
50007.92 $
Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
LT1171IQ#PBF 0
5009.52 SGD
2509.73 SGD
10010.25 SGD
2512.39 SGD
118.66 SGD
Buy Now
LT1171CT#PBF 0
5008.50 SGD
2508.70 SGD
1009.16 SGD
2511.07 SGD
116.67 SGD
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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