LTC3709 Buck Controller overview

Description

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Category
Sub-Category

LTC3709 is a 1 channel, 2 phase sync Buck Controller. The maximum input voltage ranges from 5.00 V to 36.00 V and output current goes up to 40.00 A.

The Controller features fixed 200 kHz switching frequency which results in a typical inductor size of 0.0 uH and a peak efficiency of %. The LTC3709 is available in 2 package option(s): QFN-32 SSOP-36 .

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 1
V-IN min. 5.00 V
V-IN max. 36.00 V
I-OUT? 40.00 A
V-OUT min. 0.60 V
V-OUT max. 32.40 V
V-OUT adjustable
V-OUT programmable
sync/non-sync sync
Frequency typ. 200 kHz
Frequency adj. fixed
Frequency adj. min.
Frequency adj. max.
ext.clock sync. no
ext.clock Frequency min.
ext.clock Frequency max.
Softstart
Softstart adjustable
Tracking yes
Power Good (PG)
Enable
Operating min.
Operating max.
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ.
Automotive AEC-Q100
Light-Load Mode
Single/ Multiphase multi
Nr. of Phases 2
Peak Efficiency
component count min.
current limit adjustable
Nr.of package options 2
CSP
SOT
MSOP
QFN/DFN QFN-32
SO/SOIC
SOP SSOP-36
DIP

LTC3709 Datasheet

Link to the most up-to-date LTC3709 datasheet and the product page for EVM, tools and support information.

LTC3709

LTC3709 inventory, samples and price

OEMSecrets.com
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Available Distributors with stock: 5

ARROW-NAC (2)

ProductStockPriceBuy
LTC3709EG#PBF37
15.83 USD
1005.22 USD
Buy Now
LTC3709EUH#PBF584
15.83 USD
1005.22 USD
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Chip-One-Stop (1)

ProductStockPriceBuy
LTC3709EG#PBF37
18.87 USD
57.58 USD
107.40 USD
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DIGI-KEY (3)

ProductStockPriceBuy
LTC3709EUH#PBF309
19.80 USD
256.51 USD
1005.22 USD
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LTC3709EG#PBF144
19.80 USD
256.51 USD
1005.22 USD
Buy Now
DC793A2
1150.75 USD
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LTC3709EUH#TRPBF0
25005.32 USD
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LTC3709EG#TRPBF0
20005.32 USD
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Element14 (1)

ProductStockPriceBuy
LTC3709EUH#PBF25
115.66 USD
2510.41 USD
1008.34 USD
Buy Now

FARNELL-ELEMENT14 (1)

ProductStockPriceBuy
LTC3709EUH#PBF25Buy Now

Available Distributors without stock: 1

NEWARK (0)

ProductStockPriceBuy
LTC3709EUH#PBF0
19.82 USD
256.53 USD
1005.22 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LTC3709 stock available

Table with equivalents and alternatives

The following Buck Controller are similar to LTC3709. Or, compare LTC3709 side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
50% LTC3828 LTC3828 product overviewLTC3828 product overview Linear Technology QFN-32, SSOP-28

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3709.

V-IN max. 36 V, I-OUT 40 A, V-OUT min. 0.6 V, Frequency typ. 200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744301025 0.3 40.0 65.0 0.32 11.3 x 11 x 9.4
744309025 0.3 47.5 81.0 0.17 14 x 13 x 9.5
744309033 0.3 47.5 62.5 0.17 14 x 13 x 9.5
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