LTC3612 Buck Converter overview

Description

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LTC3612 is a 5.50 V sync Buck Converter from with 3.00 A output current. The maximum 5.50 V input voltage can be regulated down into a 0.60 V to 5.50 V output voltage.

It requires are a typical inductor size of 0.56 µH, a typical external component count of 5 and achieves a peak efficiency of 95 %. Further LTC3612 characteristics are a adjustable 1000 kHz switching frequency and 2 available package option(s): QFN-20 TSSOP-20 .

For the LTC3612 replacement search, please 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. 2.25 V
V-IN max. 5.50 V
I-OUT? 3.00 A
V-OUT min. 0.60 V
V-OUT max. 5.50 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 1000 kHz
Frequency adjustable
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 800 kHz
Frequency adj./ ext.clock max 2700 kHz
Softstart yes
Softstart adjustable yes
Tracking yes
PG/Power OK yes
Quiescent current max. -1100 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 160 °C
Inductor size typ. 0.56 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 95 %
Component count min. 5
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT
MSOP
QFN/DFN QFN-20
SO/SOIC
SOP TSSOP-20
DIP
TO
DDPAK

LTC3612 Datasheet

Link to the most up-to-date LTC3612 datasheet and the product page for EVM, tools and support information.

LTC3612

LTC3612 Sample stock and distributor price breaks

LTC3612 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with LTC3612 stock available

Available Distributors with stock: 0

no online Distributor with LTC3612 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LTC3612. Optional, compare LTC3612 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% ISL8016 ISL8016 product overviewISL8016 product overview Intersil QFN-20
0% LTC3614 LTC3614 product overviewLTC3614 product overview Linear Technology QFN-24
0% LTC3616 LTC3616 product overviewLTC3616 product overview Linear Technology QFN-24
0% TPS54623 TPS54623 product overviewTPS54623 product overview Texas Instruments QFN-14
25% LT3690 LT3690 product overviewLT3690 product overview Linear Technology QFN-26
25% LTC3604 LTC3604 product overviewLTC3604 product overview Linear Technology QFN-16, MSOP-16
25% LTC3626 LTC3626 product overviewLTC3626 product overview Linear Technology QFN-20

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3612.

V-IN max. 5.5 V, I-OUT 3 A, V-OUT min. 0.6 V, Frequency typ. 1000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74402500047 0.5 3.3 4.7 19.00 2.8 x 2.8 x 3
74402500072 0.7 3.0 4.0 23.50 2.8 x 2.8 x 3
744040410047 0.5 3.3 4.3 28.00 4 x 4 x 1.2
74404300047 0.5 3.8 5.0 10.00 4.8 x 4.8 x 3
74404300082 0.8 3.5 3.7 14.00 4.8 x 4.8 x 3
74406800056 0.6 3.4 4.0 22.00 8 x 8 x 1.2
74406900052 0.5 4.3 5.8 15.00 8 x 8 x 1.5
74407000047 0.5 7.8 6.5 5.80 8 x 8 x 2
74407000082 0.8 6.2 5.5 8.50 8 x 8 x 2
744089410068 0.7 3.4 6.5 22.10 4.8 x 4.8 x 2.1
744089420082 0.8 3.5 6.7 21.00 4.8 x 4.8 x 3.1
744089430082 0.8 3.4 7.1 17.00 4.8 x 4.8 x 4.1
744383230047 0.5 3.2 5.5 37.00 2.5 x 2 x 1
744383230068 0.7 3.1 4.7 46.00 2.5 x 2 x 1
744383240047 0.5 3.4 6.3 30.00 2.5 x 2 x 1.2
744383240056 0.6 3.3 6.0 37.00 2.5 x 2 x 1.2
744383240068 0.7 3.2 5.9 45.00 2.5 x 2 x 1.2
744383350047 0.5 4.6 5.8 20.00 3 x 3 x 1.5
744383350082 0.8 3.5 7.0 30.00 3 x 3 x 1.5
744383360068 0.7 4.5 6.2 22.00 3 x 3 x 2
74479287147 0.5 3.3 5.0 25.00 2.5 x 2 x 1
74479288147 0.5 3.1 6.0 28.00 2.5 x 2 x 1.2
74479298147 0.5 3.0 4.5 28.00 3.2 x 2.5 x 1
74479299147 0.5 3.6 6.3 25.00 3.2 x 2.5 x 1.2
784383230047 0.5 3.2 5.5 37.00 2.5 x 2 x 1
784383230068 0.7 3.1 4.7 46.00 2.5 x 2 x 1
784383350047 0.5 4.6 5.8 20.00 3 x 3 x 1.5
784383350082 0.8 3.5 7.0 30.00 3 x 3 x 1.5
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