LTC3866 Buck Controller overview

Description

Manufacturer
 
Category
Sub-Category

LTC3866 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 30.00 A.

The Controller features adjustable 770 kHz switching frequency which results in a typical inductor size of 0.0 uH and a peak efficiency of %. The LTC3866 is available in 2 package option(s): QFN-24 TSSOP-24 .

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? 30.00 A
V-OUT min. 0.60 V
V-OUT max. 3.50 V
V-OUT adjustable
V-OUT programmable
sync/non-sync sync
Frequency typ. 770 kHz
Frequency adj. adjustable
Frequency adj. min. 250 kHz
Frequency adj. max. 770 kHz
ext.clock sync. yes
ext.clock Frequency min. 250 kHz
ext.clock Frequency max. 770 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 single
Nr. of Phases 1
Peak Efficiency
component count min.
current limit adjustable
Nr.of package options 2
CSP
SOT
MSOP
QFN/DFN QFN-24
SO/SOIC
SOP TSSOP-24
DIP

LTC3866 Datasheet

Link to the most up-to-date LTC3866 datasheet and the product page for EVM, tools and support information.

LTC3866

LTC3866 inventory, samples and price

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Available Distributors with stock: 5

Chip-One-Stop (3)

ProductStockPriceBuy
LTC3866EFE#PBF239
16.50 USD
105.47 USD
255.41 USD
505.16 USD
1005.04 USD
2004.80 USD
Buy Now
LTC3866EUF#PBF435
16.39 USD
105.38 USD
255.31 USD
505.07 USD
1004.95 USD
2004.72 USD
Buy Now
LTC3866IUF#PBF728
16.50 USD
105.47 USD
255.41 USD
505.16 USD
1005.04 USD
2004.80 USD
Buy Now

DIGI-KEY (5)

ProductStockPriceBuy
LTC3866EUF#PBF823
15.78 USD
253.87 USD
1003.29 USD
Buy Now
LTC3866IUF#PBF227
16.36 USD
254.26 USD
1003.62 USD
Buy Now
LTC3866IFE#PBF300
17.41 USD
254.96 USD
1004.21 USD
Buy Now
DC1829A5
1150.75 USD
Buy Now
LTC3866EFE#PBF22
16.36 USD
254.26 USD
1003.62 USD
Buy Now
LTC3866EUF#TRPBF0
25003.39 USD
Buy Now
LTC3866EFE#TRPBF0
25003.72 USD
Buy Now
LTC3866IUF#TRPBF0
25003.72 USD
Buy Now
LTC3866IFE#TRPBF0
25004.31 USD
Buy Now

Element14 (2)

ProductStockPriceBuy
LTC3866EFE#PBF35
110.09 USD
256.76 USD
1005.75 USD
Buy Now
LTC3866IFE#PBF55
111.76 USD
257.87 USD
1006.68 USD
Buy Now

FARNELL-ELEMENT14 (2)

ProductStockPriceBuy
LTC3866EFE#PBF35Buy Now
LTC3866IFE#PBF55Buy Now

NEWARK (2)

ProductStockPriceBuy
LTC3866EFE#PBF131
13.62 USD
253.62 USD
1003.62 USD
Buy Now
LTC3866EUF#PBF0
15.79 USD
253.89 USD
1003.29 USD
Buy Now
LTC3866IFE#PBF62
17.41 USD
254.97 USD
1004.21 USD
Buy Now
LTC3866IUF#PBF0
16.38 USD
254.28 USD
1003.62 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LTC3866 stock available

Table with equivalents and alternatives

The following Buck Controller are similar to LTC3866. Or, compare LTC3866 side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
25% LTC3823 LTC3823 product overviewLTC3823 product overview Linear Technology QFN-32, SSOP-28
25% LTC3833 LTC3833 product overviewLTC3833 product overview Linear Technology QFN-20, TSSOP-20
25% LTC3867 LTC3867 product overviewLTC3867 product overview Linear Technology QFN-24
50% LTC3810-5 LTC3810-5 product overviewLTC3810-5 product overview Linear Technology QFN-32

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3866.

V-IN max. 38 V, I-OUT 30 A, V-OUT min. 0.6 V, Frequency typ. 770 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
744303012 0.1 31.0 55.0 0.33 10 x 6.8 x 5
7443081012 0.1 38.0 85.0 0.29 9.4 x 6.2 x 8.1
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