LTC3525-3.3 Boost Converter Overview

Description

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Category
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LTC3525-3.3 is a 3.30 V, 0.45 A switch current limit sync Boost Converter from . The input voltage from 0.85 V to 3.30 V  can be boosted into an output voltage ranging from 3.30 V to 3.30 V.

Features of the Boost Converter are fixed 700 kHz switching frequency, a typical inductor size of 10.0 µH and it offers a peak efficiency of  up to 95 %. The minimum external component count is 3 and LTC3525-3.3 is available in 1 package option(s): SC70-6 .

For LTC3525-3.3 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. 0.85 V
V-IN max. 3.30 V
Current-Limit typ.? 0.45 A
V-OUT min. 3.30 V
V-OUT max. 3.30 V
VOUT 3.30
VOUT programmable no
sync/non-sync sync
Frequency typ. 700 kHz
Frequency adjustable fixed
Frequency selectable
Frequency adj. min.
Frequency adj. max.
extern clock sync. no
Softstart no
Softstart adjustable no
Tracking no
PG/Power OK no
LBI/LBO no
Frequency sync. min.
Frequency sync. max.
Down Mode no
Quiescent current max. 15 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 10.0 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Boost
Peak Efficiency 95 %
Component count min. 3
current limit adjustable no
Nr.of package options 1
CSP
SC70 SC70-6
SOT
MSOP
QFN/DFN
SO/SOIC
SOP
DIP
TO
DDPAK

LTC3525-3.3 Datasheet

Link to the most up-to-date LTC3525-3.3 datasheet and the product page for EVM, tools and support information.

LTC3525-3.3

LTC3525-3.3 Price breaks and distributor sample stock

LTC3525-3.3 prices and available online distributors.

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Available Distributors with stock: 0

no online Distributor with LTC3525 stock available

Available Distributors with stock: 0

no online Distributor with LTC3525 stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LTC3525-3.3. Optional, compare LTC3525-3.3 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% MAX848-3.3 MAX848-3.3 product overviewMAX848-3.3 product overview Maxim Integrated SO-16
0% L6920DC-3.3 L6920DC-3.3 product overviewL6920DC-3.3 product overview ST MSOP-8
0% TPS61261 TPS61261 product overviewTPS61261 product overview Texas Instruments SON-6

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3525-3.3.

V-IN min. 0.85 V, Current-Limit typ. 0.45 A, V-OUT max. 3.3 V, Frequency typ. 700 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025001 1.2 2.6 3.0 36.00 2.8 x 2.8 x 3
74404024010 1.0 2.2 2.6 37.00 2.5 x 2 x 1.2
74404032010 1.0 2.2 3.0 33.00 3 x 3 x 1.5
74404032015 1.5 2.0 2.3 40.00 3 x 3 x 1.5
74404041010 1.0 2.5 3.4 41.00 4 x 4 x 1.2
744042001 1.0 2.7 2.6 20.00 4.8 x 4.8 x 2
7440430012 1.2 3.1 2.8 15.00 4.8 x 4.8 x 3
7440520012 1.2 3.0 3.5 20.00 5.8 x 5.8 x 2
7440620015 1.5 4.3 4.0 10.00 6.8 x 6.8 x 2.5
7440680010 1.0 2.8 3.3 32.00 8 x 8 x 1.2
7440690010 1.0 3.6 3.8 21.00 8 x 8 x 1.5
74437321015 1.5 3.0 4.0 55.00 4.45 x 4.06 x 1.2
74438323010 1.0 2.5 4.0 63.00 2.5 x 2 x 1
74438324015 1.5 2.2 3.7 82.00 2.5 x 2 x 1.2
74479276210 1.0 2.0 2.5 65.00 2 x 1.6 x 1
74479276210C 1.0 2.1 3.1 53.00 2 x 1.25 x 1
74479287210 1.0 2.4 4.0 55.00 2.5 x 2 x 1
74479298210 1.0 2.5 4.0 45.00 3.2 x 2.5 x 1
74479889210 1.0 2.0 2.0 85.00 2.5 x 2 x 1.2
74479899210 1.0 2.3 2.5 50.00 3.2 x 2.6 x 1.2
78438323010 1.0 2.5 4.0 63.00 2.5 x 2 x 1
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