LTC3890-3 Buck Controller overview

Description

Manufacturer
 
Category
Sub-Category

LTC3890-3 is a 2 channel, 2 phase sync Buck Controller. The maximum input voltage ranges from 4.00 V to 60.00 V and output current goes up to 25.00 A.

The Controller features adjustable 900 kHz switching frequency which results in a typical inductor size of 0.0 uH and a peak efficiency of %. The LTC3890-3 is available in 1 package option(s): SSOP-28 .

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 2
V-IN min. 4.00 V
V-IN max. 60.00 V
I-OUT? 25.00 A
V-OUT min. 0.80 V
V-OUT max. 24.00 V
V-OUT adjustable
V-OUT programmable
sync/non-sync sync
Frequency typ. 900 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 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 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
SO/SOIC
SOP SSOP-28
DIP

LTC3890-3 Datasheet

Link to the most up-to-date LTC3890-3 datasheet and the product page for EVM, tools and support information.

LTC3890-3

LTC3890-3 inventory, samples and price

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Available Distributors with stock: 0

no online Distributor with LTC3890 stock available

Available Distributors with stock: 10

Arrow Electronics

ProductStockPriceBuy
LTC3890EGN-1#PBF 100
10005.04 $
5005.24 $
2505.36 $
1005.43 $
256.83 $
110.28 $
Buy Now
LTC3890MPGN-3#PBF 48
25018.14 $
10018.79 $
2522.79 $
128.49 $
Buy Now
LTC3890MPGN-3#PBF 46
10019.07 $
2522.79 $
128.49 $
Buy Now
LTC3890HGN-3#PBF 39
2506.75 $
1006.92 $
258.37 $
112.60 $
Buy Now
LTC3890EGN-3#PBF 39
2505.52 $
1005.65 $
256.84 $
110.30 $
Buy Now
LTC3890IUH-2#TRPBF 0
25006.52 $
Buy Now
LTC3890MPGN-3#TRPBF 0
250018.89 $
Buy Now
LTC3890IGN-3#TRPBF 0
25006.39 $
Buy Now
LTC3890EUH-2#TRPBF 0
25005.67 $
Buy Now
LTC3890HGN-3#PBF 0
5006.42 $
2506.57 $
1006.64 $
988.37 $
Buy Now
LTC3890EGN-3#PBF 0
5005.25 $
2505.37 $
1005.43 $
986.84 $
Buy Now
LTC3890HGN-3#TRPBF 0
25006.74 $
Buy Now
LTC3890HGN-1#PBF 0
5006.42 $
2506.57 $
1006.64 $
988.37 $
Buy Now
LTC3890MPGN-1#TRPBF 0
250018.89 $
Buy Now
LTC3890EUH-2#PBF 0
10005.17 $
5005.38 $
2505.50 $
1005.57 $
737.00 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LTC3890EGN-1#PBF 4129
5004.96 €
2505.07 €
1005.34 €
256.45 €
19.72 €
Buy Now
LTC3890EUH#PBF 4113
5005.08 €
2505.20 €
1005.47 €
256.62 €
19.97 €
Buy Now
LTC3890EUH#TRPBF 1644
5005.31 €
2505.43 €
1005.72 €
257.63 €
110.41 €
Buy Now
LTC3890EUH#TRPBF 1644
5005.31 €
2505.43 €
1005.72 €
257.63 €
110.41 €
Buy Now
LTC3890IUH#PBF 796
5005.86 €
2506.00 €
1006.32 €
257.64 €
111.51 €
Buy Now
LTC3890IGN-1#PBF 676
5005.74 €
2505.87 €
1006.18 €
257.47 €
111.26 €
Buy Now
LTC3890EUH-2#PBF 275
5005.08 €
2505.20 €
1005.47 €
256.62 €
19.97 €
Buy Now
LTC3890HUH#PBF 189
5006.19 €
2506.33 €
1006.67 €
258.06 €
112.14 €
Buy Now
LTC3890EGN-3#PBF 173
5004.96 €
2505.07 €
1005.34 €
256.45 €
19.72 €
Buy Now
LTC3890HGN-3#PBF 97
5006.06 €
2506.20 €
1006.53 €
257.90 €
111.89 €
Buy Now
LTC3890IGN-3#PBF 91
5005.74 €
2505.87 €
1006.18 €
257.47 €
111.26 €
Buy Now
LTC3890IUH-2#PBF 71
5005.86 €
2506.00 €
1006.32 €
257.64 €
111.51 €
Buy Now
LTC3890MPGN-3#PBF 55
25017.14 €
10017.54 €
2521.52 €
126.90 €
Buy Now
LTC3890EUH#TRPBF 0
25005.15 €
Buy Now
LTC3890MPUH#PBF 0
25017.45 €
10017.86 €
2521.91 €
127.39 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LTC3890EGN-1#PBF 100
10005.04 $
5005.24 $
2505.36 $
1005.43 $
256.83 $
210.28 $
Buy Now
LTC3890MPGN-3#PBF 48
25018.14 $
10018.79 $
2522.79 $
128.49 $
Buy Now
LTC3890MPGN-3#PBF 46
10019.07 $
2522.79 $
128.49 $
Buy Now
LTC3890HGN-3#PBF 39
2506.75 $
1006.92 $
258.37 $
112.60 $
Buy Now
LTC3890EGN-3#PBF 39
2505.52 $
1005.65 $
256.84 $
210.30 $
Buy Now
LTC3890MPGN-1#PBF 11
10018.79 $
122.10 $
Buy Now

Newark element14

ProductStockPriceBuy
LTC3890IGN-3#PBF 25
10.78 $
100.78 $
250.78 $
500.78 $
1000.78 $
2500.78 $
5000.78 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LTC3890EUH#PBF 2281
111.10 $
257.37 $
1006.09 $
2505.79 $
5005.66 $
10005.44 $
Buy Now
LTC3890EUH#TRPBF 965
111.60 $
257.70 $
1006.36 $
2506.05 $
5005.91 $
25005.52 $
Buy Now
LTC3890IUH#PBF 305
112.81 $
258.51 $
1007.03 $
2506.68 $
5006.53 $
10006.28 $
Buy Now
LTC3890EGN-1#PBF 1922
110.82 $
257.19 $
1005.94 $
2505.64 $
5005.52 $
10005.30 $
Buy Now
LTC3890EUH-2#PBF 73
111.10 $
257.37 $
1006.09 $
2505.79 $
5005.66 $
10005.44 $
Buy Now
LTC3890IGN-1#PBF 107
112.53 $
258.32 $
1006.88 $
2506.53 $
5006.39 $
10006.14 $
Buy Now
LTC3890HGN-3#PBF 98
113.24 $
258.80 $
1007.27 $
2506.91 $
5006.75 $
10006.49 $
Buy Now
LTC3890HUH#PBF 73
113.52 $
258.98 $
1007.42 $
2507.05 $
5006.89 $
10006.63 $
Buy Now

Rochester Electronics

ProductStockPriceBuy
LTC3890EGN-1#PBF 488
10005.59 $
5005.89 $
1006.13 $
256.40 $
16.88 $
Buy Now
LTC3890MPUH-2#PBF 438
100019.70 $
50020.74 $
10021.59 $
2522.52 $
124.24 $
Buy Now

Quest Components

ProductStockPriceBuy
LTC3890EUH#PBF 8
46.71 $
28.94 $
113.41 $
Buy Now

RS Components

ProductStockPriceBuy
LTC3890EUH#PBF 69
377.35 GBP
157.56 GBP
Buy Now

Chip1Stop

ProductStockPriceBuy
LTC3890IGN-1#PBF 49
14.89 $
Buy Now
LTC3890EUH#PBF 48
14.33 $
Buy Now

Farnell element14

ProductStockPriceBuy
LTC3890EGN-3#PBF 0
104.12 GBP
14.20 GBP
Buy Now
LTC3890IGN-3#PBF 0
254.13 GBP
104.61 GBP
15.56 GBP
Buy Now
LTC3890HGN-3#PBF 0
14.72 GBP
Buy Now
LTC3890MPGN-3#PBF 4
5015.02 GBP
2518.85 GBP
1021.03 GBP
523.23 GBP
125.41 GBP
Buy Now
show stock=0hide stock=0

Table with equivalents and alternatives

The following Buck Controller are similar to LTC3890-3. Or, compare LTC3890-3 side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
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
50% 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 LTC3890-3.

V-IN max. 60 V, I-OUT 25 A, V-OUT min. 0.8 V, Frequency typ. 900 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
744307012 0.1 29.0 48.0 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
744355215 0.2 25.0 60.0 0.58 10.5 x 10.2 x 4.2
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