LTC3103 Buck Converter overview

Description

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Category
Sub-Category

LTC3103 is a 15.00 V sync Buck Converter from with 0.30 A output current. The maximum 15.00 V input voltage can be regulated down into a 0.60 V to 13.80 V output voltage.

It requires are a typical inductor size of 10.00 µH, a typical external component count of 8 and achieves a peak efficiency of 95 %. Further LTC3103 characteristics are a fixed 1200 kHz switching frequency and 2 available package option(s): MSOP-10 DFN-10 .

For the LTC3103 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. 2.50 V
V-IN max. 15.00 V
I-OUT? 0.30 A
V-OUT min. 0.60 V
V-OUT max. 13.80 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 1200 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK yes
Quiescent current max. -600 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 150 °C
Inductor size typ. 10.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 95 %
Component count min. 8
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT
MSOP MSOP-10
QFN/DFN DFN-10
SO/SOIC
SOP
DIP
TO
DDPAK

LTC3103 Datasheet

Link to the most up-to-date LTC3103 datasheet and the product page for EVM, tools and support information.

LTC3103

LTC3103 Sample stock and distributor price breaks

LTC3103 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 5

Chip-One-Stop (4)

ProductStockPriceBuy
LTC3103EDD#PBF15
15.34 USD
104.49 USD
Buy Now
LTC3103EMSE#PBF75
14.70 USD
503.15 USD
Buy Now
LTC3103EMSE#PBF1312
15.68 USD
104.78 USD
254.72 USD
504.51 USD
1004.40 USD
2004.20 USD
Buy Now
LTC3103IDD#PBF1
15.89 USD
Buy Now

DIGI-KEY (4)

ProductStockPriceBuy
LTC3103EDD#PBF4909
15.23 USD
253.50 USD
1002.98 USD
Buy Now
LTC3103EMSE#PBF1582
15.23 USD
253.50 USD
1002.98 USD
Buy Now
LTC3103IDD#PBF1247
15.75 USD
253.86 USD
1003.28 USD
Buy Now
LTC3103IMSE#PBF869
15.75 USD
253.86 USD
1003.28 USD
Buy Now
LTC3103EDD#TRPBF0
25003.08 USD
Buy Now
LTC3103EMSE#TRPBF0
25003.08 USD
Buy Now
LTC3103IDD#TRPBF0
25003.38 USD
Buy Now
LTC3103IMSE#TRPBF0
25003.38 USD
Buy Now

NEWARK (1)

ProductStockPriceBuy
LTC3103EDD#PBF0
15.25 USD
253.52 USD
1002.98 USD
Buy Now
LTC3103EDD#TRPBF0
15.08 USD
25003.64 USD
Buy Now
LTC3103EMSE#PBF54
12.98 USD
252.98 USD
1002.98 USD
Buy Now
LTC3103IDD#PBF0
15.71 USD
253.87 USD
1003.28 USD
Buy Now
LTC3103IMSE#PBF0
15.71 USD
253.87 USD
1003.28 USD
Buy Now
LTC3103IMSE#TRPBF0
15.60 USD
25004.02 USD
Buy Now

RS-COMPONENTS (1)

ProductStockPriceBuy
LTC3103EMSE#PBF86Buy Now

TME (2)

ProductStockPriceBuy
LTC3103EDD#PBF30Buy Now
LTC3103EMSE#PBF1Buy Now

Available Distributors with stock: 0

no online Distributor with LTC3103 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LTC3103. Optional, compare LTC3103 side-by-side with other Buck 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 LTC3103.

V-IN max. 15 V, I-OUT 0.3 A, V-OUT min. 0.6 V, Frequency typ. 1200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744028004 4.7 0.9 0.7 265.00 2.8 x 2.8 x 1.2
744028006 6.8 0.8 0.6 325.00 2.8 x 2.8 x 1.2
744029004 4.7 1.0 0.8 170.00 2.8 x 2.8 x 1.5
744029006 6.8 0.8 0.7 250.00 2.8 x 2.8 x 1.5
744030004 4.7 0.5 0.5 252.00 3.3 x 3.5 x 1.05
744030006 6.8 0.4 0.4 400.00 3.3 x 3.5 x 1.05
744031006 6.8 0.9 0.8 135.00 3.8 x 3.8 x 1.8
74479887247A 4.7 1.0 0.4 230.00 2.5 x 2 x 1
74479888247 4.7 1.0 0.7 380.00 2.5 x 2 x 1
74479889268 6.8 0.8 0.7 500.00 2.5 x 2 x 1.2
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