LTC3809-1 Buck Controller overview

Description

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Category
Sub-Category

LTC3809-1 is a 1 channel, 1 phase sync Buck Controller. The maximum input voltage ranges from 2.75 V to 9.80 V and output current goes up to 5.00 A.

The Controller features fixed 550 kHz switching frequency which results in a typical inductor size of 0.0 uH and a peak efficiency of %. The LTC3809-1 is available in 2 package option(s): MS-10 DFN-10 .

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 1
V-IN min. 2.75 V
V-IN max. 9.80 V
I-OUT? 5.00 A
V-OUT min. 0.60 V
V-OUT max. 9.80 V
V-OUT adjustable
V-OUT programmable
sync/non-sync sync
Frequency typ. 550 kHz
Frequency adj. fixed
Frequency adj. min.
Frequency adj. max.
ext.clock sync. no
ext.clock Frequency min.
ext.clock Frequency max.
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 single
Nr. of Phases 1
Peak Efficiency
component count min.
current limit adjustable
Nr.of package options 2
CSP
SOT
MSOP MS-10
QFN/DFN DFN-10
SO/SOIC
SOP
DIP

LTC3809-1 Datasheet

Link to the most up-to-date LTC3809-1 datasheet and the product page for EVM, tools and support information.

LTC3809-1

LTC3809-1 inventory, samples and price

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Available Distributors with stock: 0

no online Distributor with LTC3809 stock available

Available Distributors with stock: 7

Digi-Key

ProductStockPriceBuy
LTC3809EDD-1#PBF 129
5002.81 €
2502.88 €
1003.03 €
253.67 €
15.52 €
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LTC3809EDD#PBF 17
15.52 €
Buy Now
DC882A 2
1113.73 €
Buy Now
LTC3809EMSE#TRPBF 0
25002.87 €
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LTC3809EMSE-1#TRPBF 0
25002.87 €
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LTC3809EMSE#PBF 0
2502.88 €
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LTC3809EMSE-1#PBF 0
2502.88 €
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LTC3809EDD#TRPBF 0
25002.92 €
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LTC3809EDD-1#TRPBF 0
25002.92 €
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LTC3809IMSE-1#PBF 0
2502.98 €
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LTC3809IDD-1#PBF 0
2423.13 €
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LTC3809IDD-1#TRPBF 0
25003.43 €
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LTC3809IMSE-1#TRPBF 0
25003.43 €
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show stock=0hide stock=0

Verical

ProductStockPriceBuy
LTC3809EDD#PBF 2420
13.57 $
Buy Now
LTC3809EMSE#PBF 1250
13.57 $
Buy Now
LTC3809EMSE-1#PBF 750
13.57 $
Buy Now

Newark element14

ProductStockPriceBuy
LTC3809EDD#PBF 110
10.33 $
100.33 $
250.33 $
500.33 $
1000.33 $
2500.33 $
5000.33 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LTC3809EDD#PBF 376
16.06 $
254.02 $
1003.32 $
2503.16 $
5003.09 $
10002.97 $
Buy Now
LTC3809EMSE-1#PBF 225
16.06 $
254.02 $
1003.32 $
2503.16 $
5003.09 $
10002.97 $
Buy Now
LTC3809EMSE#PBF 250
16.06 $
254.02 $
1003.32 $
2503.16 $
5003.09 $
10002.97 $
Buy Now

Bisco Industries

ProductStockPriceBuy
LTC3809EMSE-1#PBF 10 Buy Now

Bristol Electronics

ProductStockPriceBuy
LTC3809EDD-1#PBF 10 Buy Now

Quest Components

ProductStockPriceBuy
LTC3809EDD#TRPBF 1746
12412.31 $
7592.42 $
16.60 $
Buy Now

Available Distributors without stock: 3

Arrow Electronics

ProductStockPriceBuy
LTC3809IMSE-1#PBF 0
2003.15 $
Buy Now
LTC3809EDD-1#TRPBF 0
25003.04 $
Buy Now
LTC3809IMSE-1#TRPBF 0
25003.38 $
Buy Now
LTC3809EDD#TRPBF 0
25003.04 $
Buy Now
LTC3809IDD-1#TRPBF 0
25003.38 $
Buy Now
LTC3809IDD-1#PBF 0
1213.15 $
Buy Now
LTC3809EMSE-1#PBF 0
10002.82 $
5002.94 $
2503.00 $
Buy Now
LTC3809EDD-1#PBF 0
5002.94 $
2503.01 $
2423.17 $
Buy Now
LTC3809EMSE#PBF 0
10002.82 $
5002.94 $
2503.00 $
Buy Now
LTC3809EDD#PBF 0
10002.82 $
5002.94 $
2503.00 $
2423.15 $
Buy Now
LTC3809EMSE-1#TRPBF 0
25003.04 $
Buy Now
LTC3809EMSE#TRPBF 0
25003.04 $
Buy Now

Richardson RFPD

ProductStockPriceBuy
LTC3809EMSE#PBF 0
2503.38 $
5003.28 $
10003.19 $
50003.07 $
Buy Now
LTC3809EMSE-1#TRPBF 0
25003.26 $
50003.14 $
Buy Now
LTC3809EMSE-1#PBF 0
2503.38 $
5003.28 $
10003.19 $
50003.07 $
Buy Now
LTC3809EMSE#TRPBF 0
25003.26 $
50003.14 $
Buy Now
LTC3809IMSE-1#TRPBF 0
25003.90 $
50003.74 $
Buy Now
LTC3809EDD#TRPBF 0
25003.32 $
50003.19 $
Buy Now
LTC3809IDD-1#TRPBF 0
25003.90 $
50003.74 $
Buy Now
LTC3809IDD-1#PBF 0
1213.49 $
5003.39 $
10003.30 $
50003.17 $
Buy Now
LTC3809EDD#PBF 0
2423.38 $
5003.28 $
10003.19 $
50003.07 $
Buy Now
LTC3809EDD-1#PBF 0
2423.38 $
5003.28 $
10003.19 $
50003.07 $
Buy Now
LTC3809IMSE-1#PBF 0
2003.49 $
5003.39 $
10003.30 $
50003.17 $
Buy Now
LTC3809EDD-1#TRPBF 0
25003.32 $
50003.19 $
Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
LTC3809EMSE#PBF 0
256.88 SGD
17.93 SGD
Buy Now

Table with equivalents and alternatives

The following Buck Controller are similar to LTC3809-1. Or, compare LTC3809-1 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 LTC3809-1.

V-IN max. 9.8 V, I-OUT 5 A, V-OUT min. 0.6 V, Frequency typ. 550 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744040630082 0.8 6.0 9.5 10.00 6 x 6 x 2.8
7440710082 0.8 7.3 8.0 7.00 8 x 8 x 4.6
744310095 1.0 11.0 13.0 6.20 7 x 6.9 x 3.3
744314076 0.8 15.5 15.0 2.25 7 x 6.9 x 5
744316068 0.7 12.8 13.5 4.00 5.5 x 5.3 x 4.3
744373240056 0.6 6.0 10.5 13.50 4.45 x 4.06 x 2
744373240068 0.7 5.5 10.0 16.00 4.45 x 4.06 x 2
744373340068 0.7 6.2 14.0 11.00 5.7 x 5.2 x 2
744373360068 0.7 8.0 15.0 10.00 5.7 x 5.2 x 3
744383560056 0.6 8.5 10.8 7.00 4.1 x 4.1 x 2.1
744383560068 0.7 8.2 9.4 7.50 4.1 x 4.1 x 2.1
744778005 0.5 5.6 9.0 7.20 7.3 x 7.3 x 3.4
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