LTC3405A Buck Converter overview

Description

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Category
Sub-Category

LTC3405A is a 5.50 V sync Buck Converter from with 0.30 A output current. The maximum 5.50 V input voltage can be regulated down into a 0.80 V to 5.50 V output voltage.

It requires are a typical inductor size of 4.70 µH, a typical external component count of 6 and achieves a peak efficiency of 96 %. Further LTC3405A characteristics are a fixed 1500 kHz switching frequency and 1 available package option(s): TSOT23 .

For the LTC3405A 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? 0.30 A
V-OUT min. 0.80 V
V-OUT max. 5.50 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 1500 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. 400 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 4.70 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 1
CSP
SC70
SOT TSOT23
MSOP
QFN/DFN
SO/SOIC
SOP
DIP
TO
DDPAK

LTC3405A Datasheet

Link to the most up-to-date LTC3405A datasheet and the product page for EVM, tools and support information.

LTC3405A

LTC3405A Sample stock and distributor price breaks

LTC3405A prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 6

ARROW-NAC (6)

ProductStockPriceBuy
LTC3405AES6-1.5#TRMPBF17
12.37 USD
1001.96 USD
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LTC3405AES6-1.5#TRMPBF2000
5001.96 USD
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LTC3405AES6#TRMPBF398
12.37 USD
1001.96 USD
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LTC3405AES6-1.8#TRMPBF210
12.37 USD
1001.96 USD
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LTC3405AES6-1.8#TRMPBF500
5001.96 USD
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LTC3405AES6-1.8#TRPBF2500
25001.96 USD
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Chip-One-Stop (6)

ProductStockPriceBuy
LTC3405AES6-1.5#TRMPBF492
14.75 USD
104.56 USD
503.27 USD
1003.23 USD
2002.98 USD
Buy Now
LTC3405AES6-1.5#TRMPBF2500
5002.78 USD
10002.75 USD
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LTC3405AES6-1.8#TRMPBF651
14.75 USD
104.56 USD
503.27 USD
1003.23 USD
2002.98 USD
5002.73 USD
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LTC3405AES6-1.8#TRMPBF500
5002.71 USD
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LTC3405AES6#TRMPBF9000
5002.61 USD
10002.58 USD
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LTC3405AES6#TRMPBF491
13.85 USD
103.27 USD
503.05 USD
1003.01 USD
2002.94 USD
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DIGI-KEY (13)

ProductStockPriceBuy
LTC3405AES6#TRMPBF2000
5001.96 USD
Buy Now
LTC3405AES6#TRMPBF2784
13.86 USD
253.44 USD
1002.35 USD
2502.16 USD
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LTC3405AES6#TRMPBF2784
13.86 USD
253.44 USD
1002.35 USD
2502.16 USD
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LTC3405AES6-1.8#TRMPBF1500
5001.96 USD
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LTC3405AES6-1.8#TRMPBF1960
13.86 USD
253.44 USD
1002.35 USD
2502.16 USD
Buy Now
LTC3405AES6-1.8#TRMPBF1960
13.86 USD
253.44 USD
1002.35 USD
2502.16 USD
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LTC3405AES6-1.5#TRMPBF0
5001.96 USD
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LTC3405AES6-1.5#TRMPBF383
13.86 USD
253.44 USD
1002.35 USD
2502.16 USD
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LTC3405AES6-1.5#TRMPBF383
13.86 USD
253.44 USD
1002.35 USD
2502.16 USD
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LTC3405AES6-1.5#TRM138
17.71 USD
256.88 USD
1004.70 USD
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DC480A-D2
175.38 USD
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DC480A-A2
175.38 USD
Buy Now
DC480A-B2
175.38 USD
Buy Now
DC480A-C2
175.38 USD
Buy Now
LTC3405AES6-1.375#TRMPBF0
5001.96 USD
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LTC3405AES6-1.5#TRPBF0
25001.96 USD
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LTC3405AES6-1.8#TRPBF0
25001.96 USD
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LTC3405AES6#TRPBF0
25001.96 USD
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LTC3405AES6-1.375#TRPBF0
25001.96 USD
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Element14 (3)

ProductStockPriceBuy
LTC3405AES6-1.8#TRMPBF467
16.17 USD
255.50 USD
1003.76 USD
2503.46 USD
Buy Now
LTC3405AES6-1.8#TRMPBF467
16.17 USD
255.50 USD
1003.76 USD
2503.46 USD
Buy Now
LTC3405AES6#TRMPBF473
16.17 USD
255.50 USD
1003.76 USD
2503.46 USD
Buy Now

FARNELL-ELEMENT14 (4)

ProductStockPriceBuy
LTC3405AES6-1.8#TRMPBF467Buy Now
LTC3405AES6-1.8#TRMPBF467Buy Now
LTC3405AES6#TRMPBF473Buy Now
LTC3405AES6#TRMPBF473Buy Now

RS-COMPONENTS (1)

ProductStockPriceBuy
LTC3405AES6#TRMPBF208Buy Now

Available Distributors without stock: 1

NEWARK (0)

ProductStockPriceBuy
LTC3405AES6-1.5#PBF0
13.45 USD
252.32 USD
1001.96 USD
Buy Now
LTC3405AES6-1.8#PBF0
13.45 USD
252.32 USD
1001.96 USD
Buy Now
LTC3405AES6-1.8#TRMPBF0
12.75 USD
5001.96 USD
Buy Now
LTC3405AES6#PBF0
13.45 USD
252.32 USD
1001.96 USD
Buy Now
LTC3405AES6#TRMPBF0
12.75 USD
5001.96 USD
Buy Now
LTC3405AES6#TRMPBF0
13.87 USD
253.45 USD
1003.10 USD
Buy Now
LTC3405AES6#TRPBF0
12.90 USD
25002.08 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LTC3405A stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LTC3405A. Optional, compare LTC3405A side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% AOZ1605DI AOZ1605DI product overviewAOZ1605DI product overview Alpha Omega DFN
0% AS1324 AS1324 product overviewAS1324 product overview AMS SOT23-5
0% ADP2102 ADP2102 product overviewADP2102 product overview Analog Devices QFN-8
0% SP6669 SP6669 product overviewSP6669 product overview Exar SOT23-5
0% ISL8010 ISL8010 product overviewISL8010 product overview Intersil MSOP-10
0% ISL9103A ISL9103A product overviewISL9103A product overview Intersil TDFN-6
0% ISL9104A ISL9104A product overviewISL9104A product overview Intersil TDFN-6
0% ISL9105 ISL9105 product overviewISL9105 product overview Intersil DFN-8
0% LTC1627 LTC1627 product overviewLTC1627 product overview Linear Technology SO-8
0% LTC1707 LTC1707 product overviewLTC1707 product overview Linear Technology SO-8
0% LTC1877 LTC1877 product overviewLTC1877 product overview Linear Technology MSOP-8
0% LTC1878 LTC1878 product overviewLTC1878 product overview Linear Technology MSOP-8
0% LTC3103 LTC3103 product overviewLTC3103 product overview Linear Technology DFN-10, MSOP-10
0% LTC3404 LTC3404 product overviewLTC3404 product overview Linear Technology MSOP-8
0% LTC3406 LTC3406 product overviewLTC3406 product overview Linear Technology TSOT23
0% LTC3406A LTC3406A product overviewLTC3406A product overview Linear Technology TSOT23
0% LTC3410 LTC3410 product overviewLTC3410 product overview Linear Technology SC70-6
0% LTC3447 LTC3447 product overviewLTC3447 product overview Linear Technology DFN-10
0% LTC3542 LTC3542 product overviewLTC3542 product overview Linear Technology DFN-6, SOT23
0% LTC3543 LTC3543 product overviewLTC3543 product overview Linear Technology DFN-6
0% LTC3630 LTC3630 product overviewLTC3630 product overview Linear Technology DFN-16, MSOP-16
0% MAX1557 MAX1557 product overviewMAX1557 product overview Maxim TDFN-EP-10
0% MAX1820 MAX1820 product overviewMAX1820 product overview Maxim u00b5MAX-10, UCSP-12
0% MAX8500 MAX8500 product overviewMAX8500 product overview Maxim QFN-12
0% MAX8501 MAX8501 product overviewMAX8501 product overview Maxim QFN-12
0% MAX8502 MAX8502 product overviewMAX8502 product overview Maxim QFN-12
0% MAX8503 MAX8503 product overviewMAX8503 product overview Maxim QFN-12
0% MAX8506 MAX8506 product overviewMAX8506 product overview Maxim TQFN-16
0% MAX8507 MAX8507 product overviewMAX8507 product overview Maxim TQFN-16
0% MAX8508 MAX8508 product overviewMAX8508 product overview Maxim TQFN-16
0% MAX8560 MAX8560 product overviewMAX8560 product overview Maxim DFN-8, TSOT23-5
0% MAX8561 MAX8561 product overviewMAX8561 product overview Maxim TDFN-EP-8
0% MAX8562 MAX8562 product overviewMAX8562 product overview Maxim TDFN-EP-8
0% MAX8581 MAX8581 product overviewMAX8581 product overview Maxim TDFN-EP-10
0% MAX8582 MAX8582 product overviewMAX8582 product overview Maxim TDFN-EP-10
0% MAX8640Y MAX8640Y product overviewMAX8640Y product overview Maxim u00b5DFN-6
0% MIC23030 MIC23030 product overviewMIC23030 product overview Micrel MLF-6
0% MIC23031 MIC23031 product overviewMIC23031 product overview Micrel MLF-6
0% MCP1602 MCP1602 product overviewMCP1602 product overview Microchip DFN-8, MSOP-8
0% SC195 SC195 product overviewSC195 product overview Semtech MLPQ-8
0% SC202A SC202A product overviewSC202A product overview Semtech MLPQ-13
0% SC46208 SC46208 product overviewSC46208 product overview Silan Micro SOT23-5
0% AAT1106 AAT1106 product overviewAAT1106 product overview Skyworks TSOT23-5
0% AAT1120 AAT1120 product overviewAAT1120 product overview Skyworks STDFN-8
0% AAT1130 AAT1130 product overviewAAT1130 product overview Skyworks SC70-8
0% AAT1171 AAT1171 product overviewAAT1171 product overview Skyworks TDFN-12, WLCSP-12
0% AAT2120 AAT2120 product overviewAAT2120 product overview Skyworks STDFN-8
0% AAT2146 AAT2146 product overviewAAT2146 product overview Skyworks SC70-8
0% AAT2500 AAT2500 product overviewAAT2500 product overview Skyworks TDFN-12
0% AAT2500M AAT2500M product overviewAAT2500M product overview Skyworks TSOPJW-12
0% AAT2505 AAT2505 product overviewAAT2505 product overview Skyworks TDFN-12
0% AAT2506 AAT2506 product overviewAAT2506 product overview Skyworks TDFN-12
0% SKY87201 SKY87201 product overviewSKY87201 product overview Skyworks STDFN-8
0% SKY87250 SKY87250 product overviewSKY87250 product overview Skyworks DFN-8
0% LM3670 LM3670 product overviewLM3670 product overview Texas Instruments SOT23-5
0% TPS560200 TPS560200 product overviewTPS560200 product overview Texas Instruments SOT23-5
0% TPS62020 TPS62020 product overviewTPS62020 product overview Texas Instruments QFN-10, MSOP
0% TPS62021 TPS62021 product overviewTPS62021 product overview Texas Instruments QFN-10, MSOP
0% TPS62200 TPS62200 product overviewTPS62200 product overview Texas Instruments SOT23-5
0% TPS62220 TPS62220 product overviewTPS62220 product overview Texas Instruments TSOT23-5
0% TPS62240 TPS62240 product overviewTPS62240 product overview Texas Instruments SON-6, SOT-5
0% TPS62260 TPS62260 product overviewTPS62260 product overview Texas Instruments SON-6, SOT-5
0% TPS62260-Q1 TPS62260-Q1 product overviewTPS62260-Q1 product overview Texas Instruments SON-6, SOT-5
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
0% Si9174 Si9174 product overviewSi9174 product overview Vishay MLP33-10, MSOP-10
0% Si9175 Si9175 product overviewSi9175 product overview Vishay MLP33-10, MSOP-10
0% Si9176 Si9176 product overviewSi9176 product overview Vishay MLP33-10, MSOP-10
0% RP507K RP507K product overviewRP507K product overview Ricoh DFN-6
0% MB39C022 MB39C022 product overviewMB39C022 product overview Spansion SON-10
0% RP509Z-2 RP509Z-2 product overviewRP509Z-2 product overview Ricoh WLCSP-6
10% LTC3549 LTC3549 product overviewLTC3549 product overview Linear Technology DFN-6
10% MAX17501 MAX17501 product overviewMAX17501 product overview Maxim TQFN-16
10% MCP1601 MCP1601 product overviewMCP1601 product overview Microchip MSOP-8
10% AAT1121 AAT1121 product overviewAAT1121 product overview Skyworks TDFN-8
10% TPS62170 TPS62170 product overviewTPS62170 product overview Texas Instruments SON-8
10% TPS62270 TPS62270 product overviewTPS62270 product overview Texas Instruments SON-6
10% MAX15462C MAX15462C product overviewMAX15462C product overview Maxim TDFN-8
10% TPS62170-Q1 TPS62170-Q1 product overviewTPS62170-Q1 product overview Texas Instruments SON-8
25% SP6655 SP6655 product overviewSP6655 product overview Exar DFN-10
25% SP6656 SP6656 product overviewSP6656 product overview Exar DFN-10
25% BD9122GUL BD9122GUL product overviewBD9122GUL product overview Rohm CSP-8
50% TPS62737 TPS62737 product overviewTPS62737 product overview Texas Instruments QFN-14
50% TPS62741 TPS62741 product overviewTPS62741 product overview Texas Instruments SON-12
50% TPS62743 TPS62743 product overviewTPS62743 product overview Texas Instruments DSBGA-8
50% TPS62746 TPS62746 product overviewTPS62746 product overview Texas Instruments WCSP-8
50% TPS62748 TPS62748 product overviewTPS62748 product overview Texas Instruments WCSP-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3405A.

V-IN max. 5.5 V, I-OUT 0.3 A, V-OUT min. 0.8 V, Frequency typ. 1500 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
744029004 4.7 1.0 0.8 170.00 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
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
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