LTC3608 Buck Converter overview

Description

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Category
Sub-Category

LTC3608 is a 18.00 V sync Buck Converter from with 8.00 A output current. The maximum 18.00 V input voltage can be regulated down into a 0.60 V to 17.80 V output voltage.

It requires are a typical inductor size of 0.80 µH, a typical external component count of 11 and achieves a peak efficiency of 95 %. Further LTC3608 characteristics are a adjustable 550 kHz switching frequency and 1 available package option(s): QFN-52 .

For the LTC3608 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. 18.00 V
I-OUT? 8.00 A
V-OUT min. 0.60 V
V-OUT max. 17.80 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 550 kHz
Frequency adjustable
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min. 450 kHz
Frequency adj./ ext.clock max 600 kHz
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK yes
Quiescent current max. 2000 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 0.80 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 95 %
Component count min. 11
current limit adjustable yes
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN QFN-52
SO/SOIC
SOP
DIP
TO
DDPAK

LTC3608 Datasheet

Link to the most up-to-date LTC3608 datasheet and the product page for EVM, tools and support information.

LTC3608

LTC3608 Sample stock and distributor price breaks

LTC3608 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 7

ARROW-NAC (2)

ProductStockPriceBuy
LTC3608IWKG#PBF30
112.33 USD
10010.48 USD
Buy Now
LTC3608EWKG#PBF432
110.70 USD
1009.11 USD
Buy Now

Chip-One-Stop (2)

ProductStockPriceBuy
LTC3608EWKG#PBF35
111.50 USD
59.65 USD
109.59 USD
Buy Now
LTC3608IWKG#PBF30
116.00 USD
515.60 USD
1014.90 USD
2514.70 USD
Buy Now

DIGI-KEY (2)

ProductStockPriceBuy
LTC3608EWKG#PBF1358
116.03 USD
2510.70 USD
1009.11 USD
Buy Now
LTC3608IWKG#PBF187
118.42 USD
2512.33 USD
10010.48 USD
Buy Now
LTC3608EWKG#TRPBF0
20009.21 USD
Buy Now
LTC3608IWKG#TRPBF0
200010.58 USD
Buy Now

Element14 (1)

ProductStockPriceBuy
LTC3608EWKG#PBF19
125.43 USD
2516.98 USD
10014.46 USD
Buy Now
LTC3608IWKG#PBF0
129.43 USD
2519.70 USD
10016.75 USD
Buy Now

FARNELL-ELEMENT14 (1)

ProductStockPriceBuy
LTC3608EWKG#PBF19Buy Now

NEWARK (1)

ProductStockPriceBuy
LTC3608EWKG#PBF58
116.04 USD
2510.75 USD
1009.11 USD
Buy Now
LTC3608EWKG#TRPBF0
114.98 USD
200010.70 USD
Buy Now

RS-COMPONENTS (1)

ProductStockPriceBuy
LTC3608EWKG#PBF15Buy Now

Available Distributors with stock: 0

no online Distributor with LTC3608 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LTC3608. Optional, compare LTC3608 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% IR3475M IR3475M product overviewIR3475M product overview IRF PQFN-14
0% IR3476M IR3476M product overviewIR3476M product overview IRF PQFN-14
0% IR3477M IR3477M product overviewIR3477M product overview IRF PQFN-14
0% IR3865M IR3865M product overviewIR3865M product overview IRF PQFN-17
0% IR3871M IR3871M product overviewIR3871M product overview IRF PQFN-17
0% IR3876M IR3876M product overviewIR3876M product overview IRF PQFN-17
0% LTC3610 LTC3610 product overviewLTC3610 product overview Linear Technology QFN-64
0% LTC3611 LTC3611 product overviewLTC3611 product overview Linear Technology QFN-64
10% TPS54020 TPS54020 product overviewTPS54020 product overview Texas Instruments VQFN-15
25% IR3473M IR3473M product overviewIR3473M product overview IRF PQFN-14
25% IR3863M IR3863M product overviewIR3863M product overview IRF PQFN-17
25% LTC3609 LTC3609 product overviewLTC3609 product overview Linear Technology QFN-52
25% BD95500 BD95500 product overviewBD95500 product overview Rohm QFN-40
50% BD95514 BD95514 product overviewBD95514 product overview Rohm QFN-32

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3608.

V-IN max. 18 V, I-OUT 8 A, V-OUT min. 0.6 V, Frequency typ. 550 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744305040 0.4 28.0 20.0 0.16 13.5 x 13.3 x 5.2
7443081040 0.4 38.0 21.0 0.29 9.4 x 6.2 x 8.1
744310055 0.5 14.0 20.0 3.70 7 x 6.9 x 3.3
744314047 0.5 18.0 20.0 1.35 7 x 6.9 x 5
744316047 0.5 15.0 16.0 2.75 5.5 x 5.3 x 4.3
744373360047 0.5 8.3 20.0 6.40 5.7 x 5.2 x 3
744383560056 0.6 8.5 10.8 7.00 4.1 x 4.1 x 2.1
7447715906 0.6 9.5 19.0 4.50 12 x 12 x 4.5
7447798050 0.5 18.5 18.0 2.20 10.2 x 10.2 x 6.4
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