LTC3868 Buck Controller overview

Description

Manufacturer
 
Category
Sub-Category

LTC3868 is a 2 channel, 2 phase sync Buck Controller. The maximum input voltage ranges from 4.00 V to 24.00 V and output current goes up to 25.00 A.

The Controller features adjustable 850 kHz switching frequency which results in a typical inductor size of 0.0 uH and a peak efficiency of %. The LTC3868 is available in 1 package option(s): QFN-24 .

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 2
V-IN min. 4.00 V
V-IN max. 24.00 V
I-OUT? 25.00 A
V-OUT min. 0.80 V
V-OUT max. 14.00 V
V-OUT adjustable
V-OUT programmable
sync/non-sync sync
Frequency typ. 850 kHz
Frequency adj. adjustable
Frequency adj. min. 50 kHz
Frequency adj. max. 900 kHz
ext.clock sync. yes
ext.clock Frequency min. 75 kHz
ext.clock Frequency max. 850 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 yes
Single/ Multiphase multi
Nr. of Phases 2
Peak Efficiency
component count min.
current limit adjustable
Nr.of package options 1
CSP
SOT
MSOP
QFN/DFN QFN-24
SO/SOIC
SOP
DIP

LTC3868 Datasheet

Link to the most up-to-date LTC3868 datasheet and the product page for EVM, tools and support information.

LTC3868

LTC3868 inventory, samples and price

OEMSecrets.com
findchips.com

Available Distributors with stock: 3

ARROW-NAC (3)

ProductStockPriceBuy
LTC3868EUH#TRPBF194
13.34 USD
Buy Now
LTC3868EUH#PBF911
13.87 USD
1003.29 USD
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LTC3868EUFD-1#PBF51
13.87 USD
1003.29 USD
Buy Now

Chip-One-Stop (3)

ProductStockPriceBuy
LTC3868EUFD-1#PBF51
16.12 USD
105.15 USD
255.09 USD
504.86 USD
Buy Now
LTC3868EUH#PBF911
15.91 USD
104.97 USD
254.91 USD
504.69 USD
1004.57 USD
2004.36 USD
Buy Now
LTC3868EUH#TRPBF494
16.68 USD
105.28 USD
255.04 USD
504.61 USD
1004.26 USD
2004.09 USD
Buy Now

DIGI-KEY (3)

ProductStockPriceBuy
LTC3868IUH#PBF715
16.28 USD
254.20 USD
1003.57 USD
Buy Now
LTC3868EUFD-1#PBF599
15.78 USD
253.87 USD
1003.29 USD
Buy Now
LTC3868EUH#PBF184
15.78 USD
253.87 USD
1003.29 USD
Buy Now
LTC3868EGN-1#PBF0
4903.14 USD
Buy Now
LTC3868EGN-1#TRPBF0
25003.24 USD
Buy Now
LTC3868EUFD-1#TRPBF0
25003.39 USD
Buy Now
LTC3868EUH#TRPBF0
25003.39 USD
Buy Now
LTC3868IGN-1#PBF0
2453.42 USD
Buy Now
LTC3868IGN-1#TRPBF0
25003.52 USD
Buy Now
LTC3868IUFD-1#PBF0
2193.57 USD
Buy Now
LTC3868IUFD-1#TRPBF0
25003.67 USD
Buy Now
LTC3868IUH#TRPBF0
25003.67 USD
Buy Now

Available Distributors without stock: 1

NEWARK (0)

ProductStockPriceBuy
LTC3868EGN-1#PBF0
15.53 USD
253.71 USD
1003.14 USD
Buy Now
LTC3868EUFD-1#PBF0
15.79 USD
253.89 USD
1003.29 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LTC3868 stock available

Table with equivalents and alternatives

The following Buck Controller are similar to LTC3868. Or, compare LTC3868 side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
0% LTC3773 LTC3773 product overviewLTC3773 product overview Linear Technology QFN-38, SSOP-36
0% LTC3802 LTC3802 product overviewLTC3802 product overview Linear Technology QFN-32, SSOP-28
0% LTC3826 LTC3826 product overviewLTC3826 product overview Linear Technology QFN-32
0% LTC3826-1 LTC3826-1 product overviewLTC3826-1 product overview Linear Technology SSOP-28
0% LTC3857 LTC3857 product overviewLTC3857 product overview Linear Technology QFN-32
0% LTC3857-1 LTC3857-1 product overviewLTC3857-1 product overview Linear Technology SSOP-28
0% LTC3858 LTC3858 product overviewLTC3858 product overview Linear Technology QFN-32
0% LTC3858-1 LTC3858-1 product overviewLTC3858-1 product overview Linear Technology QFN-28, SSOP-28
0% LTC3868-1 LTC3868-1 product overviewLTC3868-1 product overview Linear Technology QFN-28, SSOP-28
0% LTC3880 LTC3880 product overviewLTC3880 product overview Linear Technology QFN-40
0% LTC3890 LTC3890 product overviewLTC3890 product overview Linear Technology QFN-32
0% LTC3890-1 LTC3890-1 product overviewLTC3890-1 product overview Linear Technology SSOP-28
0% LTC3890-2 LTC3890-2 product overviewLTC3890-2 product overview Linear Technology QFN-32
0% LTC3890-3 LTC3890-3 product overviewLTC3890-3 product overview Linear Technology SSOP-28
25% LTC3858-2 LTC3858-2 product overviewLTC3858-2 product overview Linear Technology QFN-32

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3868.

V-IN max. 24 V, I-OUT 25 A, V-OUT min. 0.8 V, Frequency typ. 850 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744302010 0.1 30.0 45.0 0.24 6.95 x 6.8 x 4.7
744302015 0.2 30.0 32.0 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
744303015 0.2 31.0 42.0 0.33 10 x 6.8 x 5
744304010 0.1 26.0 52.0 0.17 11.5 x 11.8 x 4
744304016 0.2 26.0 32.0 0.17 11.5 x 11.8 x 4
744307012 0.1 29.0 48.0 0.33 7.4 x 7.2 x 7.2
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
744325016 0.2 25.0 58.0 0.51 10.5 x 10.2 x 5
744355215 0.2 25.0 60.0 0.58 10.5 x 10.2 x 4.2
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