LT3958 Boost Converter Overview

Description

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Category
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LT3958 is a 80.00 V, 4.00 A switch current limit non-sync Boost Converter from . The input voltage from 5.00 V to 80.00 V  can be boosted into an output voltage ranging from 5.00 V to 80.00 V.

Features of the Boost Converter are adjustable 1000 kHz switching frequency, a typical inductor size of 33.0 µH and it offers a peak efficiency of  up to 95 %. The minimum external component count is 13 and LT3958 is available in 1 package option(s): QFN-36 .

For LT3958 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. 5.00 V
V-IN max. 80.00 V
Current-Limit typ.? 4.00 A
V-OUT min. 5.00 V
V-OUT max. 80.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync non-sync
Frequency typ. 1000 kHz
Frequency adjustable adjustable
Frequency selectable
Frequency adj. min. 100 kHz
Frequency adj. max. 1000 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. 1000 kHz
Down Mode no
Quiescent current max. 2200 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 165 °C
Inductor size typ. 33.0 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Boost
Peak Efficiency 95 %
Component count min. 13
current limit adjustable no
Nr.of package options 1
CSP
SC70
SOT
MSOP
QFN/DFN QFN-36
SO/SOIC
SOP
DIP
TO
DDPAK

LT3958 Datasheet

Link to the most up-to-date LT3958 datasheet and the product page for EVM, tools and support information.

LT3958

LT3958 Price breaks and distributor sample stock

LT3958 prices and available online distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with LT3958 stock available

Available Distributors with stock: 0

no online Distributor with LT3958 stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LT3958. Optional, compare LT3958 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
50% LT3579 LT3579 product overviewLT3579 product overview Linear Technology QFN-20, TSSOP-20
50% LT3580 LT3580 product overviewLT3580 product overview Linear Technology MSOP-8, DFN-8
50% LT3581 LT3581 product overviewLT3581 product overview Linear Technology MSOP-16, DFN-14

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3958.

V-IN min. 5 V, Current-Limit typ. 4 A, V-OUT max. 80 V, Frequency typ. 1000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
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