LTC1174-3.3 Buck Converter overview

Description

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LTC1174-3.3 is a 13.50 V non-sync Buck Converter from with 0.50 A output current. The maximum 13.50 V input voltage can be regulated down into a 3.30 V to 3.30 V output voltage.

It requires are a typical inductor size of 100.00 µH, a typical external component count of 5 and achieves a peak efficiency of 94 %. Further LTC1174-3.3 characteristics are a fixed 200 kHz switching frequency and 2 available package option(s): SO-8 PDIP-8 .

For the LTC1174-3.3 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. 4.00 V
V-IN max. 13.50 V
I-OUT? 0.50 A
V-OUT min. 3.30 V
V-OUT max. 3.30 V
V-OUT 3.300 V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 200 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart no
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 600 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 100.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 94 %
Component count min. 5
current limit adjustable yes
Nr.of packages 2
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC SO-8
SOP
DIP PDIP-8
TO
DDPAK

LTC1174-3.3 Datasheet

Link to the most up-to-date LTC1174-3.3 datasheet and the product page for EVM, tools and support information.

LTC1174-3.3

LTC1174-3.3 Sample stock and distributor price breaks

LTC1174-3.3 prices and online available distributors.

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no online Distributor with LTC1174 stock available

Available Distributors with stock: 0

no online Distributor with LTC1174 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LTC1174-3.3. Optional, compare LTC1174-3.3 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% AS7620B AS7620B product overviewAS7620B product overview AMS MLPQ-12
0% LTC1174HV-3.3 LTC1174HV-3.3 product overviewLTC1174HV-3.3 product overview Linear Technology PDIP-8, SO-8
0% MAX1684-3.3 MAX1684-3.3 product overviewMAX1684-3.3 product overview Maxim QSOP-16
0% MAX1685-3.3 MAX1685-3.3 product overviewMAX1685-3.3 product overview Maxim QSOP-16

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC1174-3.3.

V-IN max. 13.5 V, I-OUT 0.5 A, V-OUT min. 3.3 V, Frequency typ. 200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404042470 47.0 0.6 0.7 620.00 4 x 4 x 1.8
74404042680 68.0 0.5 0.6 840.00 4 x 4 x 1.8
74404052470 47.0 0.8 1.0 521.00 5 x 5 x 2
74404052680 68.0 0.6 0.9 627.00 5 x 5 x 2
74404054470 47.0 1.0 1.2 272.00 5 x 5 x 4
74404054680 68.0 0.8 1.0 400.00 5 x 5 x 4
74404063680 68.0 0.9 0.9 360.00 6 x 6 x 2.8
744052470 47.0 0.8 0.7 530.00 5.8 x 5.8 x 2
744053470 47.0 0.8 0.7 220.00 5.8 x 5.8 x 3
744062470 47.0 0.7 0.6 260.00 6.8 x 6.8 x 2.5
744065470 47.0 1.4 1.2 167.00 10 x 10 x 3.1
744065560 56.0 1.3 1.1 208.00 10 x 10 x 3.1
744065680 68.0 1.2 1.1 232.00 10 x 10 x 3.1
744065820 82.0 1.1 1.0 323.00 10 x 10 x 3.1
744071680 68.0 1.3 1.1 185.00 8 x 8 x 4.6
74408942470 47.0 0.7 1.0 515.00 4.8 x 4.8 x 3.1
74408942560 56.0 0.5 0.8 780.00 4.8 x 4.8 x 3.1
74408943470 47.0 0.8 1.1 305.00 4.8 x 4.8 x 4.1
74408943560 56.0 0.7 0.9 418.00 4.8 x 4.8 x 4.1
74408943680 68.0 0.6 0.9 608.00 4.8 x 4.8 x 4.1
74408943820 82.0 0.6 0.8 689.00 4.8 x 4.8 x 4.1
744731680 68.0 1.5 1.0 170.00 7.8 x 7.8 x 7.5
7447462470 47.0 1.2 1.2 220.00 5.5 x 5.5 x 8.5
7447462680 68.0 0.8 1.0 340.00 5.5 x 5.5 x 8.5
744773147 47.0 0.7 0.8 523.00 4 x 4.5 x 3.5
744773156 56.0 0.6 0.8 714.00 4 x 4.5 x 3.5
744773168 68.0 0.6 0.7 754.00 4 x 4.5 x 3.5
744775147 47.0 1.2 1.2 134.30 7 x 7.8 x 5.5
744775156 56.0 1.0 1.1 189.00 7 x 7.8 x 5.5
744775168 68.0 1.0 1.1 218.00 7 x 7.8 x 5.5
744775182 82.0 0.9 1.0 208.00 7 x 7.8 x 5.5
744776182 82.0 1.1 1.2 150.00 9 x 10 x 5.9
744777147 47.0 1.0 1.1 170.00 7.3 x 7.3 x 4.5
744777156 56.0 0.9 1.1 207.00 7.3 x 7.3 x 4.5
744777168 68.0 0.9 1.0 239.00 7.3 x 7.3 x 4.5
744777182 82.0 0.8 0.9 257.00 7.3 x 7.3 x 4.5
7447779147 47.0 1.0 1.1 190.00 7.3 x 7.3 x 4.5
7447779156 56.0 0.9 1.1 228.00 7.3 x 7.3 x 4.5
7447779168 68.0 0.9 1.0 239.00 7.3 x 7.3 x 4.5
7447779182 82.0 0.8 0.9 250.00 7.3 x 7.3 x 4.5
744778147 47.0 0.9 1.0 315.00 7.3 x 7.3 x 3.4
744778156 56.0 0.8 0.9 322.00 7.3 x 7.3 x 3.4
744778168 68.0 0.7 0.8 417.00 7.3 x 7.3 x 3.4
744778182 82.0 0.7 0.8 479.00 7.3 x 7.3 x 3.4
7447785147 47.0 0.9 0.7 500.00 5.9 x 6.2 x 3.3
7447786147 47.0 1.4 0.8 260.00 5.9 x 6.2 x 5.1
7447789147 47.0 0.9 1.0 315.00 7.3 x 7.3 x 3.5
7447789156 56.0 0.8 0.9 335.00 7.3 x 7.3 x 3.5
7447789168 68.0 0.7 0.8 427.00 7.3 x 7.3 x 3.5
7447789182 82.0 0.7 0.8 470.00 7.3 x 7.3 x 3.5
7447790470 47.0 1.5 1.1 135.00 6 x 6 x 6.5
744779168 68.0 1.4 0.7 220.00 6 x 6 x 6.5
744787470 47.0 1.3 1.2 206.00 7.8 x 7 x 5
744787680 68.0 1.1 1.0 246.00 7.8 x 7 x 5
744787820 82.0 1.0 0.9 278.00 7.8 x 7 x 5
784773147 47.0 0.7 0.8 523.00 4 x 4.5 x 3.5
784773156 56.0 0.6 0.8 714.00 4 x 4.5 x 3.5
784773168 68.0 0.6 0.7 754.00 4 x 4.5 x 3.5
784774147 47.0 0.9 1.0 260.00 5.2 x 5.8 x 4.85
784774156 56.0 0.8 0.9 298.00 5.2 x 5.8 x 4.85
784774168 68.0 0.6 0.9 313.00 5.2 x 5.8 x 4.85
784774182 82.0 0.6 0.7 475.00 5.2 x 5.8 x 4.85
784775147 47.0 1.2 1.2 134.00 7 x 7.8 x 5.5
784775168 68.0 1.0 1.1 218.00 7 x 7.8 x 5.5
784775182 82.0 0.9 1.0 248.00 7 x 7.8 x 5.5
784776182 82.0 1.1 1.2 150.00 9 x 10 x 5.9
784778470 47.0 1.1 1.1 290.00 7.3 x 7.3 x 3.5
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