LTC3129 Buck-Boost Converter Overview

Description

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LTC3129 is a 15.00 V, 0.20 A output current sync Buck-Boost Converter from . The 2.42 V to 15.00 V input range can be converted into a 1.40 V to 15.75 V output voltage.

The Buck-Boost Converter features fixed 1200 kHz switching frequency, requires a typical inductor size of 10.0 µH and provides a peak efficiency of 95 %. LTC3129 circuitry consists typically of 9 external components and is available in 2 package option(s): MSOP-16 QFN-16 .

For LTC3129 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. 2.42 V
V-IN max. 15.00 V
I-OUT? 0.20 A
V-OUT min. 1.40 V
V-OUT max. 15.75 V
V-OUT fixed adjustable
V-OUT programmable no
sync/non-sync sync
Frequency typ. 1200 kHz
Frequency adjustable fixed
Frequency adjustable min.
Frequency adjustable max.
ext.clock sync no
Frequency sync. min.
Frequency sync. max.
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK yes
Quiescent current max. 3 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 10.0 µH
Automotive AEC-Q100 no
Light-Load Mode yes
Topology Buck-Boost
Peak Efficiency 95 %
Component count min. 9
current limit adjustable no
LBI/LBO no
Nr. of package options 2
CSP
SOT
MSOP MSOP-16
QFN QFN-16
SO/SOIC
SOP

Charts and pictures

LTC3129 Datasheet

Link to the most up-to-date LTC3129 datasheet and the product page for EVM, tools and support information.

LTC3129

LTC3129 Distributor price breaks and sample stock

LTC3129 prices and available buy online distributors. Optional, check regional sources for price and inventory: for Russia via efind, for South Korea via ICPart, for Japan via ICBAIBAI, for China via IC5858 or International via IC2IC.

OEMSecrets.com
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Available Distributors with stock: 0

no online Distributor with LTC3129 stock available

Available Distributors with stock: 0

no online Distributor with LTC3129 stock available

Equivalents and alternatives

The following Buck-Boost DC/DC Converter are similar to LTC3129. Optional, compare LTC3129 side-by-side with other selected Buck-Boost Converter via the Comparison function.

no alternatives found

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3129.

V-IN max. 15 V, I-OUT 0.2 A, V-OUT min. 1.4 V, Frequency typ. 1200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025150 15.0 0.7 0.9 356.00 2.8 x 2.8 x 3
744031150 15.0 0.6 0.5 255.00 3.8 x 3.8 x 1.8
744032120 12.0 0.3 0.8 560.00 3.2 x 2.5 x 2.3
744032150 15.0 0.3 0.7 800.00 3.2 x 2.5 x 2.3
744032180 18.0 0.2 0.7 880.00 3.2 x 2.5 x 2.3
74404024150 15.0 0.5 0.8 830.00 2.5 x 2 x 1.2
74404024180 18.0 0.5 0.7 830.00 2.5 x 2 x 1.2
74404032150 15.0 0.7 0.8 300.00 3 x 3 x 1.5
744042150 15.0 1.0 0.8 190.00 4.8 x 4.8 x 2
744042180 18.0 0.9 0.7 270.00 4.8 x 4.8 x 2
744043150 15.0 1.0 0.8 120.00 4.8 x 4.8 x 3
744043180 18.0 1.0 0.7 150.00 4.8 x 4.8 x 3
7440680150 15.0 1.1 0.8 213.00 8 x 8 x 1.2
7440680180 18.0 0.9 0.8 302.00 8 x 8 x 1.2
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