LTC3822 Buck Controller overview

Description

Manufacturer
 
Category
Sub-Category

LTC3822 is a 1 channel, 1 phase sync Buck Controller. The maximum input voltage ranges from 2.75 V to 4.50 V and output current goes up to 20.00 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 LTC3822 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. 4.50 V
I-OUT? 20.00 A
V-OUT min. 0.60 V
V-OUT max.
V-OUT
V-OUT programmable
sync/non-sync sync
Frequency typ. 750 kHz
Frequency adj. adjustable
Frequency adj. min.
Frequency adj. max.
ext.clock sync. no
ext.clock Frequency min.
ext.clock Frequency max.
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
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

LTC3822 Datasheet

Link to the most up-to-date LTC3822 datasheet and the product page for EVM, tools and support information.

LTC3822

LTC3822 inventory, samples and price

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Available Distributors with stock: 5

ARROW-NAC (3)

ProductStockPriceBuy
LTC3822EDD-1#PBF493
12.66 USD
1002.19 USD
Buy Now
LTC3822EDD#PBF761
12.35 USD
1001.94 USD
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LTC3822EGN-1#PBF1056
12.66 USD
1002.19 USD
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Chip-One-Stop (4)

ProductStockPriceBuy
LTC3822EDD-1#PBF132
14.06 USD
103.46 USD
503.22 USD
1003.18 USD
Buy Now
LTC3822EDD#PBF761
13.58 USD
103.05 USD
502.84 USD
1002.81 USD
2002.74 USD
5002.59 USD
Buy Now
LTC3822EDD#PBF761
13.58 USD
103.05 USD
502.84 USD
1002.81 USD
2002.74 USD
5002.59 USD
Buy Now
LTC3822EGN-1#PBF796
14.32 USD
103.63 USD
253.59 USD
503.43 USD
1003.34 USD
2003.19 USD
Buy Now

DIGI-KEY (3)

ProductStockPriceBuy
LTC3822EMSE#PBF809
13.14 USD
252.35 USD
1001.94 USD
Buy Now
LTC3822EGN-1#PBF348
13.52 USD
252.66 USD
1002.19 USD
Buy Now
DC1105A3
1100.50 USD
Buy Now
LTC3822EDD#PBF0
4841.94 USD
Buy Now
LTC3822EDD#TRPBF0
25002.04 USD
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LTC3822EMSE#TRPBF0
25002.04 USD
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LTC3822EDD-1#PBF0
3632.19 USD
Buy Now
LTC3822EDD-1#TRPBF0
25002.29 USD
Buy Now
LTC3822EGN-1#TRPBF0
25002.29 USD
Buy Now

Element14 (1)

ProductStockPriceBuy
LTC3822EDD#PBF50
14.98 USD
Buy Now

FARNELL-ELEMENT14 (1)

ProductStockPriceBuy
LTC3822EDD#PBF50Buy Now

Available Distributors without stock: 1

NEWARK (0)

ProductStockPriceBuy
LTC3822EGN-1#PBF0
13.51 USD
252.50 USD
1002.19 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with LTC3822 stock available

Table with equivalents and alternatives

The following Buck Controller are similar to LTC3822. Or, compare LTC3822 side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
0% LTC3830 LTC3830 product overviewLTC3830 product overview Linear Technology SO-8, SSOP-16
0% LTC3830-1 LTC3830-1 product overviewLTC3830-1 product overview Linear Technology SO-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3822.

V-IN max. 4.5 V, I-OUT 20 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)
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
744310013 0.1 22.0 48.0 0.91 7 x 6.9 x 3.3
744355215 0.2 25.0 60.0 0.58 10.5 x 10.2 x 4.2
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