LTC1174HV Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LTC1174HV is a 18.50 V non-sync Buck Converter from with 0.50 A output current. The maximum 18.50 V input voltage can be regulated down into a 1.25 V to 18.00 V output voltage.

It requires are a typical inductor size of 100.00 µH, a typical external component count of 8 and achieves a peak efficiency of 94 %. Further LTC1174HV characteristics are a fixed 200 kHz switching frequency and 2 available package option(s): SO-8 PDIP-8 .

For the LTC1174HV 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. 18.50 V
I-OUT? 0.50 A
V-OUT min. 1.25 V
V-OUT max. 18.00 V
V-OUT adjustable 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. 8
current limit adjustable yes
Nr.of packages 2
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC SO-8
SOP
DIP PDIP-8
TO
DDPAK

LTC1174HV Datasheet

Link to the most up-to-date LTC1174HV datasheet and the product page for EVM, tools and support information.

LTC1174HV

LTC1174HV Sample stock and distributor price breaks

LTC1174HV prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 7

ARROW-NAC (6)

ProductStockPriceBuy
LTC1174HVCS8-571Buy Now
LTC1174HVCS8-3.3#PBF256
15.25 USD
1004.25 USD
Buy Now
LTC1174HVCN8#PBF45
15.00 USD
1004.10 USD
Buy Now
LTC1174HVCS8-5#PBF5
15.25 USD
1004.25 USD
Buy Now
LTC1174HVIS8#PBF101
15.80 USD
1005.05 USD
Buy Now
LTC1174HVCS8#PBF156
15.25 USD
1004.25 USD
Buy Now

Chip-One-Stop (6)

ProductStockPriceBuy
LTC1174HVCN8-3.3#PBF31
17.61 USD
56.50 USD
106.35 USD
Buy Now
LTC1174HVCN8#PBF45
17.61 USD
56.50 USD
106.35 USD
Buy Now
LTC1174HVCS8-3.3#PBF334
18.28 USD
57.07 USD
106.91 USD
506.51 USD
1006.14 USD
2006.00 USD
Buy Now
LTC1174HVCS8-5#PBF727
17.99 USD
56.82 USD
106.67 USD
506.28 USD
1005.92 USD
2005.79 USD
Buy Now
LTC1174HVCS8#PBF389
18.64 USD
57.38 USD
107.21 USD
506.80 USD
1006.41 USD
2006.26 USD
Buy Now
LTC1174HVIS8#PBF159
18.83 USD
57.54 USD
107.36 USD
506.94 USD
1006.54 USD
Buy Now

DIGI-KEY (4)

ProductStockPriceBuy
LTC1174HVIS8#PBF965
19.80 USD
256.51 USD
1005.05 USD
Buy Now
LTC1174HVCS8-5#PBF500
18.34 USD
255.54 USD
1004.25 USD
Buy Now
LTC1174HVCS8-3.3#PBF397
18.34 USD
255.54 USD
1004.25 USD
Buy Now
LTC1174HVCS8#PBF98
18.34 USD
255.54 USD
1004.25 USD
Buy Now
LTC1174HVCN8#PBF0
1004.10 USD
Buy Now
LTC1174HVCN8-3.3#PBF0
1004.10 USD
Buy Now
LTC1174HVCN8-5#PBF0
1004.10 USD
Buy Now
LTC1174HVCS8-3.3#TRPBF0
25004.35 USD
Buy Now
LTC1174HVCS8#TRPBF0
25004.35 USD
Buy Now
LTC1174HVCS8-5#TRPBF0
25004.35 USD
Buy Now
LTC1174HVIS8#TRPBF0
25005.15 USD
Buy Now

Element14 (2)

ProductStockPriceBuy
LTC1174HVCS8-5#PBF76
113.33 USD
258.86 USD
1006.85 USD
Buy Now
LTC1174HVCS8#PBF25
113.33 USD
258.86 USD
1006.85 USD
Buy Now
LTC1174HVIS8#PBF0
115.66 USD
2510.41 USD
1008.07 USD
Buy Now

FARNELL-ELEMENT14 (2)

ProductStockPriceBuy
LTC1174HVCS8-5#PBF76Buy Now
LTC1174HVCS8#PBF25Buy Now

Gerber-Electronics (1)

ProductStockPriceBuy
LTC1174HVCS8-3.356
15.25 USD
Buy Now

NEWARK (1)

ProductStockPriceBuy
LTC1174HVCS8-3.3#PBF0
18.33 USD
255.57 USD
1004.25 USD
Buy Now
LTC1174HVCS8-5#PBF20
14.25 USD
254.25 USD
1004.25 USD
Buy Now
LTC1174HVCS8-5#TRPBF0
17.62 USD
25005.46 USD
Buy Now
LTC1174HVIS8#PBF0
19.80 USD
256.52 USD
1005.05 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LTC1174HV stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LTC1174HV. Optional, compare LTC1174HV side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% AS1341 AS1341 product overviewAS1341 product overview AMS DFN-8
0% AS7620A AS7620A product overviewAS7620A product overview AMS MLPQ-12
0% MAX1534 MAX1534 product overviewMAX1534 product overview Maxim TQFN-16
0% MAX1776 MAX1776 product overviewMAX1776 product overview Maxim u00b5MAX-8
25% LTC1174 LTC1174 product overviewLTC1174 product overview Linear Technology PDIP-8, SO-8
50% MAX1672 MAX1672 product overviewMAX1672 product overview Maxim QSOP-16

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC1174HV.

V-IN max. 18.5 V, I-OUT 0.5 A, V-OUT min. 1.25 V, Frequency typ. 200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404041330 33.0 0.7 0.6 628.00 4 x 4 x 1.2
74404042330 33.0 0.7 0.9 460.00 4 x 4 x 1.8
74404052330 33.0 1.0 1.1 387.00 5 x 5 x 2
744043270 27.0 0.9 0.6 170.00 4.8 x 4.8 x 3
744052270 27.0 0.8 0.8 250.00 5.8 x 5.8 x 2
744053270 27.0 1.1 0.8 135.00 5.8 x 5.8 x 3
744053330 33.0 0.9 0.8 180.00 5.8 x 5.8 x 3
744062330 33.0 0.9 0.8 150.00 6.8 x 6.8 x 2.5
74408942330 33.0 0.8 1.1 424.00 4.8 x 4.8 x 3.1
74408943330 33.0 0.9 1.2 259.00 4.8 x 4.8 x 4.1
744773127 27.0 0.9 1.0 328.00 4 x 4.5 x 3.5
744773133 33.0 0.9 0.9 370.00 4 x 4.5 x 3.5
744773139 39.0 0.8 0.9 418.00 4 x 4.5 x 3.5
744778133 33.0 1.2 1.2 153.00 7.3 x 7.3 x 3.4
744778139 39.0 1.0 1.1 214.00 7.3 x 7.3 x 3.4
7447789133 33.0 1.2 1.2 153.00 7.3 x 7.3 x 3.5
7447789139 39.0 1.0 1.1 209.00 7.3 x 7.3 x 3.5
784773127 27.0 0.9 1.0 328.00 4 x 4.5 x 3.5
784773133 33.0 0.9 0.9 370.00 4 x 4.5 x 3.5
784773139 39.0 0.8 0.9 418.00 4 x 4.5 x 3.5
784774133 33.0 1.1 1.2 150.00 5.2 x 5.8 x 4.85
784774139 39.0 0.9 1.1 215.00 5.2 x 5.8 x 4.85
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