LTC3808 Buck Controller overview

Description

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Category
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LTC3808 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 adjustable 750 kHz switching frequency which results in a typical inductor size of 0.0 uH and a peak efficiency of %. The LTC3808 is available in 2 package option(s): DFN-16 SSOP-16 .

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. 750 kHz
Frequency adj. adjustable
Frequency adj. min.
Frequency adj. max.
ext.clock sync. yes
ext.clock Frequency min. 250 kHz
ext.clock Frequency max. 750 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 single
Nr. of Phases 1
Peak Efficiency
component count min.
current limit adjustable
Nr.of package options 2
CSP
SOT
MSOP
QFN/DFN DFN-16
SO/SOIC
SOP SSOP-16
DIP

LTC3808 Datasheet

Link to the most up-to-date LTC3808 datasheet and the product page for EVM, tools and support information.

LTC3808

LTC3808 inventory, samples and price

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Available Distributors with stock: 3

ARROW-NAC (3)

ProductStockPriceBuy
LTC3808EDE2526
165.19 USD
2519.14 USD
1008.80 USD
5007.34 USD
10006.57 USD
25006.38 USD
50006.20 USD
100006.12 USD
250006.03 USD
500005.87 USD
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LTC3808EGN#PBF255
13.09 USD
1002.77 USD
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LTC3808EDE#PBF298
13.21 USD
1002.88 USD
Buy Now

Chip-One-Stop (2)

ProductStockPriceBuy
LTC3808EDE#PBF298
14.90 USD
104.12 USD
254.07 USD
503.89 USD
1003.79 USD
2003.62 USD
Buy Now
LTC3808EGN#PBF270
14.71 USD
103.97 USD
253.92 USD
503.74 USD
1003.65 USD
2003.48 USD
Buy Now

DIGI-KEY (2)

ProductStockPriceBuy
LTC3808EGN#PBF206
15.28 USD
253.50 USD
1002.77 USD
Buy Now
DC769A3
1150.75 USD
Buy Now
LTC3808EGN#TRPBF0
25002.87 USD
Buy Now
LTC3808EDE#PBF0
4552.88 USD
Buy Now
LTC3808EDE#TRPBF0
25002.98 USD
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Available Distributors with stock: 0

no online Distributor with LTC3808 stock available

Table with equivalents and alternatives

The following Buck Controller are similar to LTC3808. Or, compare LTC3808 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 LTC3808.

V-IN max. 9.8 V, I-OUT 5 A, V-OUT min. 0.6 V, Frequency typ. 750 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74407000047 0.5 7.8 6.5 5.80 8 x 8 x 2
744373210047 0.5 5.4 9.0 18.00 4.45 x 4.06 x 1.2
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
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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