LT8331 Boost Converter Overview

Description

Manufacturer
 
Category
Sub-Category

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: 3

Chip One Stop (3)

ProductStockPriceBuy
LT8331EMSE#PBF205
17.48 USD
1005.85 USD
Buy Now
LT8331EMSE#PBF205
17.48 USD
1005.85 USD
Buy Now
LT8331IMSE#PBF173
15.28 USD
1004.13 USD
Buy Now

Digi-Key (2)

ProductStockPriceBuy
LT8331EMSE#PBF315
16.28 USD
254.22 USD
1003.58 USD
Buy Now
LT8331IMSE#PBF2919
17.04 USD
254.70 USD
1004.00 USD
Buy Now
LT8331EMSE#TRPBF0
25003.64 USD
Buy Now
LT8331IMSE#TRPBF0
25004.06 USD
Buy Now

Newark Electronics (2)

ProductStockPriceBuy
LT8331EMSE#PBF7
16.30 USD
254.23 USD
1003.58 USD
Buy Now
LT8331EMSE#TRPBF0
13.64 USD
Buy Now
LT8331IMSE#PBF98
17.04 USD
254.72 USD
1004.00 USD
Buy Now
LT8331IMSE#TRPBF0
14.06 USD
Buy Now

Available Distributors without stock: 1

Element14 (0)

ProductStockPriceBuy
LT8331EMSE#PBF0
19.68 USD
256.51 USD
1005.52 USD
Buy Now
LT8331IMSE#PBF0
110.85 USD
257.25 USD
1006.17 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LT8331 stock available

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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