LTC3890 Buck Controller overview

Description

Manufacturer
 
Category
Sub-Category

LTC3890 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 is available in 1 package option(s): QFN-32 .

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 QFN-32
SO/SOIC
SOP
DIP

LTC3890 Datasheet

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

LTC3890

LTC3890 inventory, samples and price

OEMSecrets.com
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Available Distributors with stock: 6

Chip One Stop (8)

ProductStockPriceBuy
LTC3890EGN-3#PBF49
16.39 USD
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LTC3890EUH#PBF63
18.67 USD
106.24 USD
505.78 USD
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LTC3890EUH#PBF438
16.56 USD
1005.57 USD
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LTC3890HGN-3#PBF49
17.82 USD
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LTC3890IGN-1#PBF49
19.79 USD
107.05 USD
496.69 USD
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LTC3890IGN-1#PBF49
17.40 USD
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LTC3890IGN-3#PBF49
17.40 USD
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LTC3890MPUH#PBF184
122.51 USD
10019.14 USD
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Digi-Key (13)

ProductStockPriceBuy
LTC3890EGN-1#PBF459
19.74 USD
256.52 USD
1005.54 USD
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LTC3890EUH#PBF1782
19.99 USD
256.69 USD
1005.68 USD
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LTC3890EUH-2#PBF228
19.99 USD
256.69 USD
1005.68 USD
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LTC3890HUH#PBF202
112.17 USD
258.15 USD
1006.93 USD
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LTC3890EGN-3#PBF153
19.74 USD
256.52 USD
1005.54 USD
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LTC3890IGN-1#PBF451
111.28 USD
257.55 USD
1006.42 USD
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LTC3890HGN-1#PBF1147
111.92 USD
257.98 USD
1006.77 USD
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LTC3890MPGN-3#PBF159
126.96 USD
2522.54 USD
10019.17 USD
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LTC3890IUH-2#PBF204
111.53 USD
257.71 USD
1006.55 USD
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LTC3890MPUH#PBF130
127.47 USD
2522.96 USD
10019.52 USD
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LTC3890HGN-3#PBF88
111.92 USD
257.98 USD
1006.77 USD
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LTC3890IGN-3#PBF80
111.28 USD
257.55 USD
1006.42 USD
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DC2236A-B2
1204.00 USD
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LTC3890IUH#PBF0
111.53 USD
257.71 USD
1006.55 USD
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LTC3890EGN-1#TRPBF0
25005.64 USD
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LTC3890EGN-3#TRPBF0
25005.64 USD
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LTC3890EUH#TRPBF0
25005.78 USD
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LTC3890EUH-2#TRPBF0
25005.78 USD
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LTC3890IGN-1#TRPBF0
25006.52 USD
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LTC3890IGN-3#TRPBF0
25006.52 USD
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LTC3890IUH#TRPBF0
25006.65 USD
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LTC3890IUH-2#TRPBF0
25006.65 USD
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LTC3890HGN-1#TRPBF0
25000.00 USD
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LTC3890HUH#TRPBF0
25000.00 USD
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LTC3890MPGN-1#PBF0
490.00 USD
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Element14 (1)

ProductStockPriceBuy
LTC3890EGN-3#PBF17
115.30 USD
2510.24 USD
1008.70 USD
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Farnell Element14 (4)

ProductStockPriceBuy
LTC3890EGN-3#PBF19Buy Now
LTC3890HGN-3#PBF8Buy Now
LTC3890IGN-3#PBF30Buy Now
LTC3890MPGN-3#PBF23Buy Now

Newark Electronics (2)

ProductStockPriceBuy
LTC3890EGN-1#PBF0
19.56 USD
256.41 USD
1005.43 USD
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LTC3890EGN-3#PBF0
19.56 USD
256.41 USD
1005.43 USD
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LTC3890EUH#PBF0
19.81 USD
256.58 USD
1005.57 USD
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LTC3890EUH#TRPBF0
110.11 USD
25007.25 USD
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LTC3890HGN-1#PBF0
111.69 USD
257.84 USD
1006.64 USD
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LTC3890HGN-3#PBF16
111.69 USD
257.84 USD
1006.64 USD
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LTC3890HUH-2#PBF0
111.95 USD
258.02 USD
1006.79 USD
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LTC3890IGN-3#PBF25
111.07 USD
257.43 USD
1006.29 USD
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LTC3890IUH-2#PBF0
111.30 USD
257.58 USD
1006.42 USD
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LTC3890IUH#PBF0
111.30 USD
257.58 USD
1006.42 USD
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LTC3890IUH#TRPBF0
111.59 USD
25008.31 USD
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LTC3890MPGN-3#PBF0
126.50 USD
2522.18 USD
10018.79 USD
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LTC3890MPUH#PBF0
126.99 USD
2522.59 USD
10019.14 USD
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LTC3890MPUH#TRPBF0
123.00 USD
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RS Components (1)

ProductStockPriceBuy
LTC3890EUH#PBF127Buy Now

Available Distributors with stock: 10

Arrow Electronics

ProductStockPriceBuy
LTC3890EUH#TRPBF 17500
1005.67 $
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LTC3890EUH#TRPBF 645
1005.67 $
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LTC3890EUH#PBF 438
16.56 $
1005.57 $
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LTC3890EUH#PBF 295
16.56 $
1005.57 $
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LTC3890MPUH#PBF 184
122.51 $
10019.14 $
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LTC3890MPUH#PBF 50
122.51 $
10019.14 $
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LTC3890IGN-3#PBF 49
17.40 $
1006.29 $
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LTC3890HGN-3#PBF 49
17.82 $
1006.64 $
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LTC3890EGN-3#PBF 49
16.39 $
1005.43 $
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LTC3890EGN-1#PBF 24
16.39 $
1005.43 $
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LTC3890MPGN-1#PBF 4
122.10 $
10018.79 $
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LTC3890EUH#TRPBF 0
1005.67 $
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LTC3890EUH#TRPBF 0
1005.67 $
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LTC3890IGN-3#PBF 0
17.40 $
1006.29 $
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LTC3890EGN-3#PBF 0
16.39 $
1005.43 $
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show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LTC3890EUH#PBF 1782
1004.75 €
255.60 €
18.36 €
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LTC3890HGN-1#PBF 1147
1005.67 €
256.68 €
19.98 €
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LTC3890EGN-1#PBF 459
1004.64 €
255.45 €
18.15 €
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LTC3890IGN-1#PBF 451
1005.37 €
256.32 €
19.44 €
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LTC3890EUH-2#PBF 228
1004.75 €
255.60 €
18.36 €
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LTC3890IUH-2#PBF 204
1005.48 €
256.45 €
19.65 €
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LTC3890HUH#PBF 202
1005.80 €
256.82 €
110.19 €
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LTC3890MPGN-3#PBF 159
10016.04 €
2518.87 €
122.56 €
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LTC3890EGN-3#PBF 153
1004.64 €
255.45 €
18.15 €
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LTC3890MPUH#PBF 130
10016.34 €
2519.22 €
122.99 €
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LTC3890HGN-3#PBF 88
1005.67 €
256.68 €
19.98 €
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LTC3890IGN-3#PBF 80
1005.37 €
256.32 €
19.44 €
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DC2236A-B 2
1170.73 €
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LTC3890IUH#PBF 0
1005.48 €
256.45 €
19.65 €
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LTC3890EGN-1#TRPBF 0
25004.72 €
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show stock=0hide stock=0

Newark element14

ProductStockPriceBuy
LTC3890IUH#TRPBF 0
111.59 $
25008.31 $
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LTC3890MPUH#PBF 0
126.99 $
2522.59 $
10019.14 $
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LTC3890MPGN-3#PBF 0
126.50 $
2522.18 $
10018.79 $
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LTC3890MPUH#TRPBF 0
123.00 $
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LTC3890HGN-3#PBF 16
111.69 $
257.84 $
1006.64 $
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LTC3890HUH-2#PBF 0
111.95 $
258.02 $
1006.79 $
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LTC3890EUH#TRPBF 0
110.11 $
25007.25 $
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LTC3890IUH-2#PBF 0
111.30 $
257.58 $
1006.42 $
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LTC3890EGN-3#PBF 0
19.56 $
256.41 $
1005.43 $
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LTC3890EUH#PBF 0
19.81 $
256.58 $
1005.57 $
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LTC3890HGN-1#PBF 0
111.69 $
257.84 $
1006.64 $
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LTC3890EGN-1#PBF 0
19.56 $
256.41 $
1005.43 $
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LTC3890IGN-3#PBF 25
111.07 $
257.43 $
1006.29 $
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LTC3890IUH#PBF 0
111.30 $
257.58 $
1006.42 $
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show stock=0hide stock=0

Mouser Electronics

ProductStockPriceBuy
LTC3890EUH#PBF 584
110.02 $
109.18 $
256.70 $
1005.69 $
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LTC3890EGN-1#PBF 137
19.76 $
108.95 $
256.52 $
1005.54 $
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LTC3890IGN-1#PBF 147
111.30 $
1010.36 $
257.55 $
1006.42 $
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LTC3890IUH#TRPBF 0
113.08 $
1012.14 $
2511.67 $
1007.99 $
2507.32 $
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LTC3890EGN-1#TRPBF 0
111.07 $
1010.27 $
259.87 $
1006.77 $
2506.21 $
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LTC3890EUH#TRPBF 0
111.36 $
1010.54 $
2510.13 $
1006.95 $
2506.37 $
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LTC3890IUH#PBF 0
111.56 $
1010.59 $
257.72 $
1006.55 $
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LTC3890IGN-3#PBF 0
111.30 $
1010.36 $
257.55 $
1006.42 $
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LTC3890MPUH#TRPBF 0
134.48 $
1031.84 $
2531.02 $
10023.55 $
25021.59 $
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LTC3890HGN-3#PBF 0
111.94 $
1010.95 $
257.98 $
1006.78 $
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LTC3890MPGN-3#PBF 0
126.96 $
1025.54 $
2522.55 $
10019.17 $
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LTC3890HGN-1#PBF 0
111.94 $
1010.95 $
257.98 $
1006.78 $
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LTC3890MPUH#PBF 0
127.48 $
1026.02 $
2522.97 $
10019.53 $
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LTC3890EGN-3#PBF 0
19.76 $
108.95 $
256.52 $
1005.54 $
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LTC3890HUH#PBF 0
112.20 $
1011.18 $
258.15 $
1006.93 $
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show stock=0hide stock=0

Quest Components

ProductStockPriceBuy
LTC3890EUH#PBF 21
46.71 $
28.94 $
113.41 $
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basicEparts

ProductStockPriceBuy
LTC-3890 9999 Buy Now
GLTC-3890 9999 Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
LTC3890EGN-3#PBF 17
112.24 $
258.19 $
1006.96 $
Buy Now

Farnell element14

ProductStockPriceBuy
LTC3890MPGN-3#PBF 23
111.89 GBP
Buy Now
LTC3890HGN-3#PBF 8
14.72 GBP
Buy Now
LTC3890EGN-3#PBF 19
17.93 GBP
254.93 GBP
1004.43 GBP
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LTC3890IGN-3#PBF 30
14.49 GBP
254.13 GBP
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Chip1Stop

ProductStockPriceBuy
LTC3890MPGN-1#PBF 28
124.70 $
Buy Now
LTC3890IGN-1#PBF 49
496.69 $
107.05 $
19.79 $
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LTC3890EUH#PBF 63
505.78 $
106.24 $
18.67 $
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LTC3890EGN-1#PBF 37
2947.15 $
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LTC3890EGN-3#PBF 49
19.69 $
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LTC3890EUH#PBF 1585
1008.86 $
115.50 $
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LTC3890EUH#TRPBF 12500
25006.70 $
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LTC3890IUH#PBF 792
10010.20 $
117.80 $
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LTC3890MPUH#PBF 184
146.90 $
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LTC3890EGN-1#PBF 37
2947.15 $
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LTC3890EUH#PBF 63
505.78 $
106.24 $
18.67 $
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LTC3890EUH#TRPBF 12500
25006.70 $
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LTC3890IGN-1#PBF 49
496.69 $
107.05 $
19.79 $
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LTC3890MPGN-1#PBF 28
124.70 $
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LTC3890EGN-3#PBF 49
16.39 $
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RS Components

ProductStockPriceBuy
LTC3890EUH#PBF 127
107.03 GBP
256.38 GBP
506.29 GBP
756.22 GBP
Buy Now

Table with equivalents and alternatives

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

Variation Compare Product Manufacturer Package
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
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.

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
0Results
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0% tolerance (0)
10% tolerance (0)
25% tolerance (0)
50% tolerance (0)
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