LTC3609 Buck Converter overview

Description

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Category
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LTC3609 is a 32.00 V sync Buck Converter from with 6.00 A output current. The maximum 32.00 V input voltage can be regulated down into a 0.60 V to 31.40 V output voltage.

It requires are a typical inductor size of 1.20 µH, a typical external component count of 13 and achieves a peak efficiency of 95 %. Further LTC3609 characteristics are a adjustable 500 kHz switching frequency and 1 available package option(s): QFN-52 .

For the LTC3609 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. 32.00 V
I-OUT? 6.00 A
V-OUT min. 0.60 V
V-OUT max. 31.40 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 500 kHz
Frequency adjustable
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min. 500 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. 1.20 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 95 %
Component count min. 13
current limit adjustable yes
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN QFN-52
SO/SOIC
SOP
DIP
TO
DDPAK

LTC3609 Datasheet

Link to the most up-to-date LTC3609 datasheet and the product page for EVM, tools and support information.

LTC3609

LTC3609 Sample stock and distributor price breaks

LTC3609 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 6

ARROW-NAC (1)

ProductStockPriceBuy
LTC3609EWKG#PBF1387
111.07 USD
1009.41 USD
Buy Now

Chip-One-Stop (1)

ProductStockPriceBuy
LTC3609EWKG#PBF1219
115.50 USD
515.20 USD
1014.50 USD
2514.30 USD
5013.50 USD
10013.20 USD
Buy Now

DIGI-KEY (2)

ProductStockPriceBuy
LTC3609EWKG#PBF1288
116.56 USD
2511.07 USD
1009.41 USD
Buy Now
LTC3609IWKG#PBF288
119.47 USD
2513.03 USD
10011.07 USD
Buy Now
LTC3609EWKG#TRPBF0
20009.51 USD
Buy Now
LTC3609IWKG#TRPBF0
200011.17 USD
Buy Now

Element14 (1)

ProductStockPriceBuy
LTC3609EWKG#PBF0
126.46 USD
2517.69 USD
10015.04 USD
Buy Now
LTC3609IWKG#PBF43
131.11 USD
2520.82 USD
10017.69 USD
Buy Now

FARNELL-ELEMENT14 (1)

ProductStockPriceBuy
LTC3609IWKG#PBF43Buy Now

RS-COMPONENTS (1)

ProductStockPriceBuy
LTC3609EWKG#PBF266Buy Now

Available Distributors without stock: 1

NEWARK (0)

ProductStockPriceBuy
LTC3609EWKG#PBF0
116.57 USD
2511.11 USD
1009.41 USD
Buy Now
LTC3609EWKG#TRPBF0
115.50 USD
200011.07 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LTC3609 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LTC3609. Optional, compare LTC3609 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LTC3611 LTC3611 product overviewLTC3611 product overview Linear Technology QFN-64
25% IR3473M IR3473M product overviewIR3473M product overview IRF PQFN-14
25% IR3871M IR3871M product overviewIR3871M product overview IRF PQFN-17
50% IR3863M IR3863M product overviewIR3863M product overview IRF PQFN-17
50% BD95500 BD95500 product overviewBD95500 product overview Rohm QFN-40
50% BD95513 BD95513 product overviewBD95513 product overview Rohm QFN-32
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 LTC3609.

V-IN max. 32 V, I-OUT 6 A, V-OUT min. 0.6 V, Frequency typ. 500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744040630082 0.8 6.0 9.5 10.00 6 x 6 x 2.8
7440710082 0.8 7.3 8.0 7.00 8 x 8 x 4.6
744314076 0.8 15.5 15.0 2.25 7 x 6.9 x 5
744316068 0.7 12.8 13.5 4.00 5.5 x 5.3 x 4.3
744373240056 0.6 6.0 10.5 13.50 4.45 x 4.06 x 2
744373340068 0.7 6.2 14.0 11.00 5.7 x 5.2 x 2
744373360068 0.7 8.0 15.0 10.00 5.7 x 5.2 x 3
744383560056 0.6 8.5 10.8 7.00 4.1 x 4.1 x 2.1
744383560068 0.7 8.2 9.4 7.50 4.1 x 4.1 x 2.1
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