LTC3775 Buck Controller overview

Description

Manufacturer
 
Category
Sub-Category

LTC3775 is a 1 channel, 1 phase sync Buck Controller. The maximum input voltage ranges from 4.50 V to 38.00 V and output current goes up to 25.00 A.

The Controller features fixed 1000 kHz switching frequency which results in a typical inductor size of 0.0 uH and a peak efficiency of %. The LTC3775 is available in 2 package option(s): MS-16 QFN-16 .

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 1
V-IN min. 4.50 V
V-IN max. 38.00 V
I-OUT? 25.00 A
V-OUT min. 0.60 V
V-OUT max. 30.40 V
V-OUT adjustable
V-OUT programmable
sync/non-sync sync
Frequency typ. 1000 kHz
Frequency adj. fixed
Frequency adj. min.
Frequency adj. max.
ext.clock sync. yes
ext.clock Frequency min. 250 kHz
ext.clock Frequency max. 1000 kHz
Softstart
Softstart adjustable
Tracking no
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 single
Nr. of Phases 1
Peak Efficiency
component count min.
current limit adjustable
Nr.of package options 2
CSP
SOT
MSOP MS-16
QFN/DFN QFN-16
SO/SOIC
SOP
DIP

LTC3775 Datasheet

Link to the most up-to-date LTC3775 datasheet and the product page for EVM, tools and support information.

LTC3775

LTC3775 inventory, samples and price

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Available Distributors with stock: 4

Conrad COM (1)

ProductStockPriceBuy
LTC3775EMSE#PBF19Buy Now

Conrad UK (1)

ProductStockPriceBuy
LTC3775EMSE#PBF19Buy Now

Digi-Key (4)

ProductStockPriceBuy
LTC3775IUD#PBF359
14.56 USD
253.05 USD
1002.59 USD
Buy Now
LTC3775EMSE#PBF37
13.90 USD
252.61 USD
1002.21 USD
Buy Now
DC1290A-B3
1136.13 USD
25102.51 USD
Buy Now
DC1290A-A2
1136.13 USD
25102.51 USD
Buy Now
LTC3775EUD#PBF0
13.90 USD
252.61 USD
1002.21 USD
Buy Now
LTC3775EUD#TRPBF0
25002.32 USD
Buy Now
LTC3775EMSE#TRPBF0
25002.32 USD
Buy Now
LTC3775IMSE#PBF0
2962.59 USD
Buy Now
LTC3775IUD#TRPBF0
25002.69 USD
Buy Now
LTC3775IMSE#TRPBF0
25002.69 USD
Buy Now

Mouser Electronics (2)

ProductStockPriceBuy
LTC3775IUD#PBF696
14.58 USD
104.20 USD
253.06 USD
1002.60 USD
Buy Now
LTC3775EMSE#PBF182
13.92 USD
103.59 USD
252.62 USD
1002.22 USD
Buy Now
LTC3775EMSE#TRPBF0
14.52 USD
104.20 USD
254.04 USD
1002.78 USD
2502.56 USD
25002.32 USD
Buy Now
LTC3775EUD#PBF0
3632.22 USD
Buy Now
LTC3775IMSE#PBF0
2962.60 USD
Buy Now
LTC3775EUD#TRPBF0
25002.32 USD
Buy Now
LTC3775IUD#TRPBF0
25002.70 USD
Buy Now
LTC3775IMSE#TRPBF0
25002.70 USD
Buy Now

Available Distributors without stock: 3

Element14 (0)

ProductStockPriceBuy
LTC3775EUD#PBF0Buy Now

Farnell Element14 (0)

ProductStockPriceBuy
LTC3775EUD#PBF0Buy Now

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 4

Arrow Electronics

ProductStockPriceBuy
LTC3775IUD#PBF 360
1002.54 $
12.99 $
Buy Now

Digi-Key

ProductStockPriceBuy
LTC3775IUD#PBF 359
1002.21 €
252.60 €
13.89 €
Buy Now
LTC3775EMSE#PBF 37
1001.89 €
252.23 €
13.33 €
Buy Now
DC1290A-B 3
2587.49 €
1116.19 €
Buy Now
DC1290A-A 2
2587.49 €
1116.19 €
Buy Now
LTC3775EUD#PBF 0
1001.89 €
252.23 €
13.33 €
Buy Now
LTC3775EUD#TRPBF 0
25001.98 €
Buy Now
LTC3775EMSE#TRPBF 0
25001.98 €
Buy Now
LTC3775IMSE#PBF 0
2962.21 €
Buy Now
LTC3775IUD#TRPBF 0
25002.30 €
Buy Now
LTC3775IMSE#TRPBF 0
25002.30 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LTC3775IUD#PBF 360
12.99 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LTC3775IUD#PBF 696
14.57 $
104.19 $
253.05 $
1002.59 $
Buy Now
LTC3775EMSE#PBF 182
13.90 $
103.58 $
252.61 $
1002.21 $
Buy Now
LTC3775EMSE#TRPBF 0
14.51 $
104.19 $
254.02 $
1002.78 $
2502.55 $
25002.32 $
Buy Now
LTC3775EUD#PBF 0
3632.21 $
Buy Now
LTC3775IMSE#PBF 0
2962.59 $
Buy Now
LTC3775EUD#TRPBF 0
25002.32 $
Buy Now
LTC3775IUD#TRPBF 0
25002.69 $
Buy Now
LTC3775IMSE#TRPBF 0
25002.69 $
Buy Now
show stock=0hide stock=0

Table with equivalents and alternatives

The following Buck Controller are similar to LTC3775. Or, compare LTC3775 side-by-side with other Buck Controller via the Comparison function.

no alternatives found

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3775.

V-IN max. 38 V, I-OUT 25 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)
744302007 0.1 30.0 60.0 0.24 6.95 x 6.8 x 4.7
744302010 0.1 30.0 45.0 0.24 6.95 x 6.8 x 4.7
744304010 0.1 26.0 52.0 0.17 11.5 x 11.8 x 4
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