LTC3103 Buck Converter overview

Description

Manufacturer
 
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 (2)

ProductStockPriceBuy
LTC3103EDD#PBF121
16.64 USD
104.31 USD
503.33 USD
1003.03 USD
Buy Now
LTC3103EMSE#PBF174
16.74 USD
104.37 USD
503.40 USD
1003.22 USD
Buy Now

Digi-Key (6)

ProductStockPriceBuy
LTC3103EMSE#PBF1340
15.33 USD
253.57 USD
1003.04 USD
Buy Now
LTC3103EDD#PBF1211
15.33 USD
253.57 USD
1003.04 USD
Buy Now
LTC3103IDD#PBF1554
15.87 USD
253.94 USD
1003.35 USD
Buy Now
LTC3103IMSE#PBF413
15.87 USD
253.94 USD
1003.35 USD
Buy Now
LTC3103EDD#TRPBF0
25003.14 USD
Buy Now
LTC3103EDD#TRPBF2050
16.11 USD
255.46 USD
1003.77 USD
2503.46 USD
Buy Now
LTC3103EDD#TRPBF2150
16.11 USD
255.46 USD
1003.77 USD
2503.46 USD
Buy Now
LTC3103EMSE#TRPBF0
25003.14 USD
Buy Now
LTC3103EMSE#TRPBF0
16.11 USD
255.46 USD
1003.77 USD
2503.46 USD
Buy Now
LTC3103EMSE#TRPBF0
16.11 USD
255.46 USD
1003.77 USD
2503.46 USD
Buy Now
DC1883A0
1102.00 USD
Buy Now
LTC3103IDD#TRPBF0
25003.45 USD
Buy Now
LTC3103IMSE#TRPBF0
25003.45 USD
Buy Now

Mouser Electronics (4)

ProductStockPriceBuy
LTC3103EDD#PBF179
15.48 USD
105.01 USD
253.66 USD
1003.11 USD
Buy Now
LTC3103IDD#PBF103
16.03 USD
105.53 USD
254.04 USD
1003.44 USD
Buy Now
LTC3103IMSE#PBF175
16.03 USD
105.53 USD
254.04 USD
1003.44 USD
Buy Now
LTC3103EMSE#PBF22
15.48 USD
105.01 USD
253.66 USD
1003.11 USD
Buy Now
LTC3103IMSE#TRPBFNone
25003.54 USD
Buy Now
LTC3103EDD#TRPBFNone
25003.21 USD
Buy Now
LTC3103EMSE#TRPBFNone
25003.21 USD
Buy Now
LTC3103IDD#TRPBFNone
25003.54 USD
Buy Now

RS Components (1)

ProductStockPriceBuy
LTC3103EMSE#PBF46Buy Now

Transfer Multisort Elektronik (1)

ProductStockPriceBuy
LTC3103EDD#PBF3Buy Now

Available Distributors without stock: 1

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 6

Arrow Electronics

ProductStockPriceBuy
LTC3103IDD#PBF 693
13.86 $
1003.28 $
Buy Now
LTC3103EDD#PBF 59
13.50 $
1002.98 $
Buy Now
LTC3103IMSE#PBF 10
13.86 $
1003.28 $
Buy Now
LTC3103IDD#PBF 0
13.86 $
1003.28 $
Buy Now
LTC3103IDD#PBF 0
13.86 $
1003.28 $
Buy Now
LTC3103EMSE#TRPBF 0
1003.08 $
Buy Now
LTC3103IDD#TRPBF 0
1003.38 $
Buy Now
LTC3103IMSE#TRPBF 0
1003.38 $
Buy Now
LTC3103EMSE#PBF 0
13.50 $
1002.98 $
Buy Now
LTC3103EDD#TRPBF 0
1003.08 $
Buy Now
LTC3103EDD#TRPBF 0
1003.08 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LTC3103EDD#TRPBF 2150
2502.95 €
1003.22 €
254.66 €
15.22 €
Buy Now
LTC3103EDD#TRPBF 2050
2502.95 €
1003.22 €
254.66 €
15.22 €
Buy Now
LTC3103IDD#PBF 1554
1002.86 €
253.36 €
15.01 €
Buy Now
LTC3103EMSE#PBF 1340
1002.60 €
253.05 €
14.55 €
Buy Now
LTC3103EDD#PBF 1211
1002.60 €
253.05 €
14.55 €
Buy Now
LTC3103IMSE#PBF 413
1002.86 €
253.36 €
15.01 €
Buy Now
LTC3103EDD#TRPBF 0
25002.68 €
Buy Now
LTC3103EMSE#TRPBF 0
25002.68 €
Buy Now
LTC3103EMSE#TRPBF 0
2502.95 €
1003.22 €
254.66 €
15.22 €
Buy Now
LTC3103EMSE#TRPBF 0
2502.95 €
1003.22 €
254.66 €
15.22 €
Buy Now
DC1883A 0
187.09 €
Buy Now
LTC3103IDD#TRPBF 0
25002.94 €
Buy Now
LTC3103IMSE#TRPBF 0
25002.94 €
Buy Now
show stock=0hide stock=0

Mouser Electronics

ProductStockPriceBuy
LTC3103EDD#PBF 179
15.34 $
104.89 $
253.57 $
1003.04 $
Buy Now
LTC3103IDD#PBF 103
15.88 $
105.39 $
253.94 $
1003.35 $
Buy Now
LTC3103IMSE#PBF 175
15.88 $
105.39 $
253.94 $
1003.35 $
Buy Now
LTC3103EMSE#PBF 22
15.34 $
104.89 $
253.57 $
1003.04 $
Buy Now
LTC3103IMSE#TRPBF 0
25003.45 $
Buy Now
LTC3103EDD#TRPBF 0
25003.14 $
Buy Now
LTC3103EMSE#TRPBF 0
25003.14 $
Buy Now
LTC3103IDD#TRPBF 0
25003.45 $
Buy Now
show stock=0hide stock=0

TME Electronic Components

ProductStockPriceBuy
LTC3103EDD#PBF 3
15.82 $
35.57 $
104.99 $
254.40 $
1003.88 $
Buy Now
LTC3103EDD#PBF 3
15.82 $
35.57 $
104.99 $
254.40 $
1003.88 $
Buy Now

Chip1Stop

ProductStockPriceBuy
LTC3103EDD#PBF 121
1003.03 $
503.33 $
16.64 $
Buy Now
LTC3103EMSE#PBF 174
1003.20 $
503.38 $
16.73 $
Buy Now

RS Components

ProductStockPriceBuy
LTC3103EMSE#PBF 46
105.20 GBP
254.49 GBP
Buy Now

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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