LTC3605 Buck Converter overview

Description

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Category
Sub-Category

LTC3605 is a 15.00 V sync Buck Converter from with 5.00 A output current. The maximum 15.00 V input voltage can be regulated down into a 0.60 V to 14.85 V output voltage.

It requires are a typical inductor size of 1.00 µH, a typical external component count of 12 and achieves a peak efficiency of 95 %. Further LTC3605 characteristics are a adjustable 1000 kHz switching frequency and 1 available package option(s): QFN-24 .

For the LTC3605 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. 15.00 V
I-OUT? 5.00 A
V-OUT min. 0.60 V
V-OUT max. 14.85 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 1000 kHz
Frequency adjustable
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 800 kHz
Frequency adj./ ext.clock max 4000 kHz
Softstart yes
Softstart adjustable yes
Tracking yes
PG/Power OK yes
Quiescent current max. 5000 µA
Operating min. -40 °C
Operating max. 125 °C
Junction min.
Junction max.
thermal shutdown typ. 160 °C
Inductor size typ. 1.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 95 %
Component count min. 12
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN QFN-24
SO/SOIC
SOP
DIP
TO
DDPAK

LTC3605 Datasheet

Link to the most up-to-date LTC3605 datasheet and the product page for EVM, tools and support information.

LTC3605

LTC3605 Sample stock and distributor price breaks

LTC3605 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 7

ARROW-NAC (3)

ProductStockPriceBuy
LTC3605IUF3
162.97 USD
Buy Now
LTC3605AEUF#PBF383
16.07 USD
1005.16 USD
Buy Now
LTC3605EUF#PBF1033
16.07 USD
1005.16 USD
Buy Now

Chip-One-Stop (8)

ProductStockPriceBuy
LTC3605AEUF#PBF88
17.74 USD
105.75 USD
505.46 USD
Buy Now
LTC3605AEUF#PBF69
19.83 USD
58.39 USD
108.20 USD
507.73 USD
Buy Now
LTC3605AIUF#PBF188
17.45 USD
106.76 USD
506.50 USD
1826.42 USD
Buy Now
LTC3605AIUF#PBF12
110.80 USD
59.17 USD
109.07 USD
Buy Now
LTC3605EUF#PBF93
16.40 USD
105.80 USD
505.58 USD
Buy Now
LTC3605EUF#PBF89
18.16 USD
108.16 USD
505.46 USD
Buy Now
LTC3605IUF#PBF85
17.04 USD
106.42 USD
Buy Now
LTC3605IUF#PBF613
111.50 USD
59.76 USD
109.64 USD
259.20 USD
508.98 USD
1008.52 USD
Buy Now

DIGI-KEY (6)

ProductStockPriceBuy
LTC3605EUF#PBF2434
19.07 USD
256.07 USD
1005.16 USD
Buy Now
LTC3605AEUF#PBF946
19.07 USD
256.07 USD
1005.16 USD
Buy Now
LTC3605IUF#PBF2560
110.68 USD
257.14 USD
1006.07 USD
Buy Now
LTC3605AIUF#PBF1472
110.68 USD
257.14 USD
1006.07 USD
Buy Now
DC1215A5
1150.75 USD
Buy Now
DC1897B5
1150.75 USD
Buy Now
LTC3605EUF#TRPBF0
25005.26 USD
Buy Now
LTC3605AEUF#TRPBF0
25005.26 USD
Buy Now
LTC3605IUF#TRPBF0
25006.17 USD
Buy Now
LTC3605AIUF#TRPBF0
25006.17 USD
Buy Now

Element14 (1)

ProductStockPriceBuy
LTC3605EUF#PBF222
114.39 USD
259.63 USD
1008.19 USD
Buy Now

FARNELL-ELEMENT14 (1)

ProductStockPriceBuy
LTC3605EUF#PBF470Buy Now

NEWARK (1)

ProductStockPriceBuy
LTC3605AEUF#PBF0
19.09 USD
256.09 USD
1005.16 USD
Buy Now
LTC3605AIUF#PBF0
110.69 USD
257.17 USD
1006.07 USD
Buy Now
LTC3605EUF#PBF77
19.09 USD
256.09 USD
1005.16 USD
Buy Now
LTC3605EUF#TRPBF0
18.81 USD
25006.32 USD
Buy Now
LTC3605IUF#PBF0
16.32 USD
Buy Now
LTC3605IUF#TRPBF0
110.36 USD
25007.43 USD
Buy Now

RS-COMPONENTS (1)

ProductStockPriceBuy
LTC3605EUF#PBF182Buy Now

Available Distributors with stock: 0

no online Distributor with LTC3605 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LTC3605. Optional, compare LTC3605 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LTC3605A LTC3605A product overviewLTC3605A product overview Linear Technology QFN-24
0% TPS54020 TPS54020 product overviewTPS54020 product overview Texas Instruments VQFN-15
0% TPS54623 TPS54623 product overviewTPS54623 product overview Texas Instruments QFN-14
0% TPS54821 TPS54821 product overviewTPS54821 product overview Texas Instruments VQFN-14
10% IR3856M IR3856M product overviewIR3856M product overview IRF PQFN-17
10% IR3856WM IR3856WM product overviewIR3856WM product overview IRF PQFN-17
25% IR3853M IR3853M product overviewIR3853M product overview IRF PQFN-17
25% LT3690 LT3690 product overviewLT3690 product overview Linear Technology QFN-26
25% TPS54521 TPS54521 product overviewTPS54521 product overview Texas Instruments VQFN-14
50% LTC3603 LTC3603 product overviewLTC3603 product overview Linear Technology QFN-16, MSOP-16
50% LTC3604 LTC3604 product overviewLTC3604 product overview Linear Technology QFN-16, MSOP-16
50% LTC3626 LTC3626 product overviewLTC3626 product overview Linear Technology QFN-20

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3605.

V-IN max. 15 V, I-OUT 5 A, V-OUT min. 0.6 V, Frequency typ. 1000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74407000047 0.5 7.8 6.5 5.80 8 x 8 x 2
744373210047 0.5 5.4 9.0 18.00 4.45 x 4.06 x 1.2
744383360033 0.3 5.5 8.3 14.00 3 x 3 x 2
744383560033 0.3 9.6 12.4 6.00 4.1 x 4.1 x 2.1
744778005 0.5 5.6 9.0 7.20 7.3 x 7.3 x 3.4
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