LT8331 Boost Converter Overview

Description

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Boost

LT8331 is a 140.00 V, 0.60 A switch current limit non-sync Boost Converter from . The input voltage from 4.50 V to 100.00 V  can be boosted into an output voltage ranging from 4.00 V to 140.00 V.

Features of the Boost Converter are adjustable 500 kHz switching frequency, a typical inductor size of 100.0 µH and it offers a peak efficiency of  up to 90 %. The minimum external component count is 11 and LT8331 is available in 1 package option(s): MSOP-12 .

For LT8331 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. 4.50 V
V-IN max. 100.00 V
Current-Limit typ.? 0.60 A
V-OUT min. 4.00 V
V-OUT max. 140.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync non-sync
Frequency typ. 500 kHz
Frequency adjustable adjustable
Frequency selectable
Frequency adj. min. 100 kHz
Frequency adj. max. 500 kHz
extern clock sync. yes
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK no
LBI/LBO no
Frequency sync. min. 100 kHz
Frequency sync. max. 500 kHz
Down Mode no
Quiescent current max. 1700 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 170 °C
Inductor size typ. 100.0 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Boost
Peak Efficiency 90 %
Component count min. 11
current limit adjustable no
Nr.of package options 1
CSP
SC70
SOT
MSOP MSOP-12
QFN/DFN
SO/SOIC
SOP
DIP
TO
DDPAK

LT8331 Datasheet

Link to the most up-to-date LT8331 datasheet and the product page for EVM, tools and support information.

LT8331

LT8331 Price breaks and distributor sample stock

LT8331 prices and available online distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with LT8331 stock available

Available Distributors with stock: 5

Arrow Electronics

ProductStockPriceBuy
LT8331IMSE#PBF 96
2504.06 $
1004.15 $
255.03 $
17.57 $
Buy Now
LT8331IMSE#PBF 16
10003.71 $
5003.86 $
2503.94 $
1004.00 $
255.03 $
17.57 $
Buy Now
LT8331IMSE#TRPBF 0
25003.77 $
Buy Now
LT8331IMSE#TRPBF 0
25003.77 $
Buy Now
LT8331EMSE#TRPBF 0
25003.64 $
Buy Now
LT8331EMSE#PBF 0
2503.63 $
1853.72 $
Buy Now
LT8331EMSE#PBF 0
10003.32 $
5003.45 $
2503.52 $
1853.58 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT8331IMSE#PBF 5032
1003.96 €
254.79 €
17.22 €
Buy Now
LT8331IMSE#TRPBF 4991
1004.15 €
255.02 €
17.55 €
Buy Now
LT8331IMSE#TRPBF 4991
1004.15 €
255.02 €
17.55 €
Buy Now
LT8331EMSE#PBF 3901
1003.54 €
254.29 €
16.46 €
Buy Now
LT8331IMSE#TRPBF 2500
25003.77 €
Buy Now
LT8331EMSE#TRPBF 1010
1003.73 €
254.51 €
16.79 €
Buy Now
LT8331EMSE#TRPBF 1010
1003.73 €
254.51 €
16.79 €
Buy Now
LT8331EMSE#TRPBF 0
25003.38 €
Buy Now
DC2275A 0
1113.04 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LT8331IMSE#PBF 150
2504.06 $
1004.15 $
255.03 $
27.57 $
Buy Now
LT8331IMSE#PBF 16
10003.71 $
5003.86 $
2503.94 $
1004.00 $
255.03 $
27.57 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT8331EMSE#PBF 692
17.13 $
254.73 $
1003.91 $
2503.71 $
5003.63 $
10003.49 $
Buy Now
LT8331IMSE#PBF 1357
17.97 $
255.29 $
1004.37 $
2504.15 $
5004.06 $
10003.90 $
Buy Now
LT8331IMSE#TRPBF 2302
18.35 $
255.54 $
1004.58 $
2504.35 $
5004.25 $
25003.97 $
Buy Now

IChunt

ProductStockPriceBuy
LT8331IMSE#PBF 1375
163.04 CNY
2541.84 CNY
10034.57 CNY
25032.83 CNY
50032.11 CNY
100030.85 CNY
Buy Now

Available Distributors without stock: 3

Richardson RFPD

ProductStockPriceBuy
LT8331IMSE#PBF 0
1484.44 $
5004.31 $
10004.20 $
50004.04 $
Buy Now
LT8331IMSE#TRPBF 0
25004.26 $
50004.11 $
Buy Now
LT8331EMSE#TRPBF 0
25003.84 $
50003.69 $
Buy Now
LT8331EMSE#PBF 0
1853.97 $
5003.86 $
10003.75 $
50003.61 $
Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
LT8331IMSE#PBF 0
5006.15 SGD
2506.29 SGD
1006.63 SGD
258.01 SGD
112.06 SGD
Buy Now
LT8331EMSE#PBF 0
5005.50 SGD
2505.64 SGD
1005.93 SGD
257.17 SGD
110.79 SGD
Buy Now

Farnell element14

ProductStockPriceBuy
LT8331IMSE#PBF 0
1003.26 GBP
253.58 GBP
15.87 GBP
Buy Now
LT8331EMSE#PBF 0
1002.92 GBP
253.21 GBP
15.27 GBP
Buy Now

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LT8331. Optional, compare LT8331 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
50% LM5002 LM5002 product overviewLM5002 product overview Texas Instruments WSON-8, SOIC-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT8331.

V-IN min. 4.5 V, Current-Limit typ. 0.6 A, V-OUT max. 140 V, Frequency typ. 500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744325120 1.2 20.0 25.0 1.80 10.5 x 10.2 x 5
7443320082 0.8 24.0 36.0 1.85 12.1 x 11.4 x 10
7443320100 1.0 24.0 32.0 1.85 12.1 x 11.4 x 10
7443320150 1.5 19.5 27.0 2.95 12.1 x 11.4 x 10
7443330082 0.8 20.0 36.0 2.15 10.9 x 10 x 9.7
7443330100 1.0 20.0 27.5 2.15 10.9 x 10 x 9.7
7443550140 1.4 22.0 26.0 2.40 13 x 12.8 x 5
744355090 0.9 24.0 28.0 1.62 13 x 12.8 x 5
7443551130 1.3 25.0 25.0 1.70 13.2 x 12.8 x 6.5
744355182 0.8 27.0 35.0 1.04 13 x 12.8 x 6.5
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