LTC3542 Buck Converter overview

Description

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Sub-Category

LTC3542 is a 5.50 V sync Buck Converter from with 0.50 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 2.20 µH, a typical external component count of 6 and achieves a peak efficiency of 96 %. Further LTC3542 characteristics are a fixed 2250 kHz switching frequency and 2 available package option(s): SOT23 DFN-6 .

For the LTC3542 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. 5.50 V
I-OUT? 0.50 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. 2250 kHz
Frequency fixed
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 1000 kHz
Frequency adj./ ext.clock max 3000 kHz
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 500 µA
Operating min. -40 °C
Operating max. 125 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 2.20 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 96 %
Component count min. 6
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT SOT23
MSOP
QFN/DFN DFN-6
SO/SOIC
SOP
DIP
TO
DDPAK

LTC3542 Datasheet

Link to the most up-to-date LTC3542 datasheet and the product page for EVM, tools and support information.

LTC3542

LTC3542 Sample stock and distributor price breaks

LTC3542 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 4

ARROW-NAC (5)

ProductStockPriceBuy
LTC3542IDC#TRMPBF307
13.00 USD
1002.46 USD
Buy Now
LTC3542IDC#TRMPBF500
5002.47 USD
Buy Now
LTC3542EDC#TRMPBF669
12.34 USD
1001.93 USD
Buy Now
LTC3542ES6#TRMPBF152
12.34 USD
1001.93 USD
Buy Now
LTC3542IS6#TRMPBF500
5002.47 USD
Buy Now

Chip-One-Stop (6)

ProductStockPriceBuy
LTC3542EDC#TRMPBF379
14.76 USD
104.58 USD
503.29 USD
1003.25 USD
2003.00 USD
Buy Now
LTC3542ES6#TRMPBF537
13.86 USD
103.29 USD
503.06 USD
1003.03 USD
2002.95 USD
5002.79 USD
Buy Now
LTC3542ES6#TRPBF2500
25002.67 USD
Buy Now
LTC3542IDC#TRMPBF327
16.00 USD
104.75 USD
254.52 USD
504.14 USD
1003.83 USD
2003.67 USD
Buy Now
LTC3542IDC#TRMPBF500
5003.41 USD
Buy Now
LTC3542IS6#TRMPBF500
16.00 USD
104.75 USD
254.52 USD
504.14 USD
1003.83 USD
2003.67 USD
Buy Now

DIGI-KEY (10)

ProductStockPriceBuy
LTC3542EDC#TRMPBF500
5001.93 USD
Buy Now
LTC3542EDC#TRMPBF705
13.71 USD
253.32 USD
1002.32 USD
2502.12 USD
Buy Now
LTC3542EDC#TRMPBF705
13.71 USD
253.32 USD
1002.32 USD
2502.12 USD
Buy Now
LTC3542ES6#TRMPBF0
5001.93 USD
Buy Now
LTC3542ES6#TRMPBF395
13.71 USD
253.32 USD
1002.32 USD
2502.12 USD
Buy Now
LTC3542ES6#TRMPBF395
13.71 USD
253.32 USD
1002.32 USD
2502.12 USD
Buy Now
LTC3542IS6#TRMPBF0
5002.47 USD
Buy Now
LTC3542IS6#TRMPBF450
14.84 USD
254.32 USD
1002.96 USD
2502.72 USD
Buy Now
LTC3542IS6#TRMPBF450
14.84 USD
254.32 USD
1002.96 USD
2502.72 USD
Buy Now
LTC3542IDC#TRMPBF0
5002.47 USD
Buy Now
LTC3542IDC#TRMPBF106
14.84 USD
254.32 USD
1002.96 USD
2502.72 USD
Buy Now
LTC3542IDC#TRMPBF106
14.84 USD
254.32 USD
1002.96 USD
2502.72 USD
Buy Now
DC993A2
175.38 USD
Buy Now
LTC3542EDC#TRPBF0
25001.88 USD
Buy Now
LTC3542ES6#TRPBF0
25001.88 USD
Buy Now
LTC3542IDC#TRPBF0
25002.47 USD
Buy Now
LTC3542IS6#TRPBF0
25002.47 USD
Buy Now

NEWARK (1)

ProductStockPriceBuy
LTC3542EDC#PBF0
13.58 USD
252.45 USD
1001.88 USD
Buy Now
LTC3542EDC#TRMPBF0
12.71 USD
5001.93 USD
Buy Now
LTC3542ES6#PBF19
11.88 USD
251.88 USD
1001.88 USD
Buy Now
LTC3542IS6#PBF0
14.30 USD
252.92 USD
1002.47 USD
Buy Now
LTC3542IS6#TRMPBF0
13.46 USD
5002.47 USD
Buy Now

Available Distributors without stock: 1

Element14 (0)

ProductStockPriceBuy
LTC3542EDC#TRMPBF0
15.89 USD
255.27 USD
1003.68 USD
2503.37 USD
Buy Now
LTC3542EDC#TRMPBF0
15.89 USD
255.27 USD
1003.68 USD
2503.37 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LTC3542 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LTC3542. Optional, compare LTC3542 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LTC3543 LTC3543 product overviewLTC3543 product overview Linear Technology DFN-6
0% LTC3560 LTC3560 product overviewLTC3560 product overview Linear Technology TSOT23
0% AAT1142 AAT1142 product overviewAAT1142 product overview Skyworks TSOPJW-12, TDFN-12
0% AAT1171 AAT1171 product overviewAAT1171 product overview Skyworks TDFN-12, WLCSP-12
0% AAT2503 AAT2503 product overviewAAT2503 product overview Skyworks QFN-20
0% AAT2504 AAT2504 product overviewAAT2504 product overview Skyworks QFN-20
0% TPS62300 TPS62300 product overviewTPS62300 product overview Texas Instruments SON-10, DSBGA-8
0% TPS62320 TPS62320 product overviewTPS62320 product overview Texas Instruments SON-10, DSBGA-8
25% ISL8010 ISL8010 product overviewISL8010 product overview Intersil MSOP-10
25% LTC1627 LTC1627 product overviewLTC1627 product overview Linear Technology SO-8
25% LTC1707 LTC1707 product overviewLTC1707 product overview Linear Technology SO-8
25% LTC1877 LTC1877 product overviewLTC1877 product overview Linear Technology MSOP-8
25% LTC1878 LTC1878 product overviewLTC1878 product overview Linear Technology MSOP-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3542.

V-IN max. 5.5 V, I-OUT 0.5 A, V-OUT min. 0.6 V, Frequency typ. 2250 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744030001 1.2 1.0 1.1 95.00 3.3 x 3.5 x 1.05
744031001 1.5 1.8 1.6 40.00 3.8 x 3.8 x 1.8
74479775215 1.5 1.1 0.8 160.00 2 x 1.2 x 1.2
74479776215 1.5 1.3 0.8 110.00 2 x 1.6 x 1
74479787215A 1.5 1.9 1.1 70.00 2.5 x 2 x 1
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