LTC3853 Buck Controller overview

Description

Manufacturer
 
Category
Sub-Category

LTC3853 is a 3 channel, 3 phase sync Buck Controller. The maximum input voltage ranges from 4.50 V to 24.00 V and output current goes up to 25.00 A.

The Controller features adjustable 500 kHz switching frequency which results in a typical inductor size of 0.0 uH and a peak efficiency of %. The LTC3853 is available in 1 package option(s): QFN-40 .

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 3
V-IN min. 4.50 V
V-IN max. 24.00 V
I-OUT? 25.00 A
V-OUT min. 0.80 V
V-OUT max. 13.50 V
V-OUT adjustable
V-OUT programmable
sync/non-sync sync
Frequency typ. 500 kHz
Frequency adj. adjustable
Frequency adj. min. 250 kHz
Frequency adj. max. 750 kHz
ext.clock sync. yes
ext.clock Frequency min. 250 kHz
ext.clock Frequency max. 750 kHz
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 3
Peak Efficiency
component count min.
current limit adjustable
Nr.of package options 1
CSP
SOT
MSOP
QFN/DFN QFN-40
SO/SOIC
SOP
DIP

LTC3853 Datasheet

Link to the most up-to-date LTC3853 datasheet and the product page for EVM, tools and support information.

LTC3853

LTC3853 inventory, samples and price

OEMSecrets.com
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Available Distributors with stock: 0

no online Distributor with LTC3853 stock available

Available Distributors with stock: 9

Arrow Electronics

ProductStockPriceBuy
LTC3853EUJ#TRPBF 886
1004.39 $
Buy Now
LTC3853EUJ#PBF 183
1004.29 $
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LTC3853IUJ#PBF 6
1004.78 $
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Digi-Key

ProductStockPriceBuy
LTC3853EUJ#PBF 2279
5003.86 €
2503.95 €
1004.16 €
255.03 €
17.58 €
Buy Now
LTC3853EUJ#TRPBF 1995
5004.05 €
2504.15 €
1004.36 €
255.84 €
17.95 €
Buy Now
LTC3853EUJ#TRPBF 1995
5004.05 €
2504.15 €
1004.36 €
255.84 €
17.95 €
Buy Now
LTC3853IUJ#PBF 311
5004.31 €
2504.41 €
1004.65 €
255.62 €
18.47 €
Buy Now
LTC3853HUJ#PBF 183
5004.65 €
2504.76 €
1005.01 €
256.06 €
19.12 €
Buy Now
LTC3853MPUJ#PBF 61
2514.66 €
118.32 €
Buy Now
LTC3853EUJ#TRPBF 0
20003.93 €
Buy Now
LTC3853IUJ#TRPBF 0
20004.38 €
Buy Now
LTC3853HUJ#TRPBF 0
20004.72 €
Buy Now
LTC3853MPUJ#TRPBF 0
200011.73 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LTC3853EUJ#PBF 366
15.04 $
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LTC3853IUJ#PBF 6
24.78 $
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Newark element14

ProductStockPriceBuy
LTC3853MPUJ#PBF 61
15.03 $
255.03 $
1005.03 $
Buy Now
LTC3853HUJ#PBF 61
12.00 $
252.00 $
1002.00 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LTC3853EUJ#TRPBF 1998
18.95 $
255.94 $
1004.91 $
2504.66 $
5004.56 $
20004.25 $
Buy Now
LTC3853EUJ#PBF 320
18.53 $
255.66 $
1004.68 $
2504.45 $
5004.35 $
10004.18 $
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LTC3853IUJ#PBF 120
19.52 $
256.32 $
1005.23 $
2504.97 $
5004.85 $
10004.67 $
Buy Now
LTC3853HUJ#PBF 0
110.26 $
256.81 $
1005.63 $
2505.35 $
5005.23 $
10005.03 $
Buy Now
LTC3853MPUJ#PBF 0
6116.51 $
12213.45 $
30513.15 $
54912.64 $
Buy Now
LTC3853IUJ#TRPBF 0
20004.74 $
Buy Now
LTC3853HUJ#TRPBF 0
20005.10 $
Buy Now
LTC3853MPUJ#TRPBF 0
200012.70 $
Buy Now
show stock=0hide stock=0

Quest Components

ProductStockPriceBuy
LTC3853EUJ#PBF 1
15.01 $
Buy Now

TME Electronic Components

ProductStockPriceBuy
LTC3853EUJ#PBF 58
18.10 $
37.70 $
106.74 $
256.09 $
Buy Now

Farnell element14

ProductStockPriceBuy
LTC3853MPUJ#PBF 61
257.92 GBP
18.08 GBP
Buy Now
LTC3853EUJ#PBF 5
13.20 GBP
Buy Now
LTC3853HUJ#PBF 20
1004.36 GBP
504.72 GBP
255.60 GBP
106.47 GBP
17.61 GBP
Buy Now

RS Components

ProductStockPriceBuy
LTC3853EUJ#PBF 49
3653.70 GBP
1463.85 GBP
734.01 GBP
104.19 GBP
Buy Now

Available Distributors without stock: 2

element14 Asia-Pacific

ProductStockPriceBuy
LTC3853EUJ#PBF 0
1006.69 SGD
257.70 SGD
111.50 SGD
Buy Now

Richardson RFPD

ProductStockPriceBuy
LTC3853IUJ#TRPBF 0
20005.10 $
50004.91 $
Buy Now
LTC3853MPUJ#PBF 0
6115.18 $
10014.34 $
50013.95 $
100013.59 $
500013.07 $
Buy Now
LTC3853IUJ#PBF 0
1225.29 $
5005.15 $
10005.02 $
50004.82 $
Buy Now
LTC3853EUJ#TRPBF 0
20004.58 $
50004.41 $
Buy Now
LTC3853EUJ#PBF 0
1224.74 $
5004.62 $
10004.50 $
50004.32 $
Buy Now
LTC3853MPUJ#TRPBF 0
200013.65 $
500013.13 $
Buy Now
LTC3853HUJ#TRPBF 0
20005.49 $
50005.28 $
Buy Now
LTC3853HUJ#PBF 0
1225.71 $
5005.56 $
10005.41 $
50005.20 $
Buy Now

Table with equivalents and alternatives

The following Buck Controller are similar to LTC3853. Or, compare LTC3853 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 LTC3853.

V-IN max. 24 V, I-OUT 25 A, V-OUT min. 0.8 V, Frequency typ. 500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744302015 0.2 30.0 32.0 0.24 6.95 x 6.8 x 4.7
744303015 0.2 31.0 42.0 0.33 10 x 6.8 x 5
744303022 0.2 31.0 32.0 0.33 10 x 6.8 x 5
744304016 0.2 26.0 32.0 0.17 11.5 x 11.8 x 4
744305022 0.2 28.0 42.0 0.16 13.5 x 13.3 x 5.2
744306020 0.2 26.0 36.0 0.30 10.5 x 10.3 x 5.5
744306025 0.3 26.0 32.0 0.30 10.5 x 10.3 x 5.5
744307016 0.2 29.0 41.0 0.33 7.4 x 7.2 x 7.2
744308015 0.2 27.0 58.0 0.37 10.1 x 7 x 7
744308020 0.2 27.0 48.0 0.37 10.1 x 7 x 7
744308025 0.3 27.0 44.0 0.37 10.1 x 7 x 7
7443081018 0.2 38.0 60.0 0.29 9.4 x 6.2 x 8.1
7443081022 0.2 38.0 45.0 0.29 9.4 x 6.2 x 8.1
744325016 0.2 25.0 58.0 0.51 10.5 x 10.2 x 5
7443320022 0.2 27.0 60.0 1.10 12.1 x 11.4 x 10
744355019 0.2 29.0 60.0 0.50 13 x 12.8 x 5
744355215 0.2 25.0 60.0 0.58 10.5 x 10.2 x 4.2
744373770022 0.2 25.0 40.0 0.75 13.5 x 12.6 x 3.5
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