LTC3122 Boost Converter Overview

Description

Manufacturer
 
Category
Sub-Category

LTC3122 is a 15.00 V, 3.50 A switch current limit sync Boost Converter from . The input voltage from 1.80 V to 5.50 V  can be boosted into an output voltage ranging from 2.20 V to 15.00 V.

Features of the Boost Converter are adjustable 1000 kHz switching frequency, a typical inductor size of 3.3 µH and it offers a peak efficiency of  up to 95 %. The minimum external component count is 11 and LTC3122 is available in 2 package option(s): MSOP-12 DFN-12 .

For LTC3122 replacement search, select a main parameter tolerance value and adjust the checkboxes for feature match. The product counter within the button shows the number of available equivalents and a click on the replacement button shows all possible replacements within a parametric overview.

ParameterValueReplacement
Search Filter
V-IN min. 1.80 V
V-IN max. 5.50 V
Current-Limit typ.? 3.50 A
V-OUT min. 2.20 V
V-OUT max. 15.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync sync
Frequency typ. 1000 kHz
Frequency adjustable adjustable
Frequency selectable
Frequency adj. min. 100 kHz
Frequency adj. max. 3000 kHz
extern clock sync. yes
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
LBI/LBO no
Frequency sync. min. 100 kHz
Frequency sync. max. 1000 kHz
Down Mode no
Quiescent current max. 700 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 170 °C
Inductor size typ. 3.3 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Boost
Peak Efficiency 95 %
Component count min. 11
current limit adjustable no
Nr.of package options 2
CSP
SC70
SOT
MSOP MSOP-12
QFN/DFN DFN-12
SO/SOIC
SOP
DIP
TO
DDPAK

LTC3122 Datasheet

Link to the most up-to-date LTC3122 datasheet and the product page for EVM, tools and support information.

LTC3122

LTC3122 Price breaks and distributor sample stock

LTC3122 prices and available online distributors.

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Available Distributors with stock: 0

no online Distributor with LTC3122 stock available

Available Distributors with stock: 6

Digi-Key

ProductStockPriceBuy
LTC3122EDE#TRPBF 5000
25002.58 €
Buy Now
LTC3122EDE#TRPBF 5000
5002.66 €
2502.72 €
1002.86 €
253.84 €
15.21 €
Buy Now
LTC3122EDE#TRPBF 5000
5002.66 €
2502.72 €
1002.86 €
253.84 €
15.21 €
Buy Now
LTC3122EDE#PBF 1460
5002.51 €
2502.57 €
1002.71 €
253.27 €
14.93 €
Buy Now
LTC3122EMSE#PBF 1261
5002.51 €
2502.57 €
1002.71 €
253.27 €
14.93 €
Buy Now
LTC3122HMSE#PBF 139
5003.22 €
2503.29 €
1003.47 €
254.19 €
16.32 €
Buy Now
LTC3122IDE#PBF 91
5002.95 €
2503.01 €
1003.17 €
253.84 €
15.77 €
Buy Now
DC1764A 3
25136.45 €
1177.72 €
Buy Now
LTC3122EMSE#TRPBF 0
25002.58 €
Buy Now
LTC3122EMSE#TRPBF 0
5002.66 €
2502.72 €
1002.86 €
253.84 €
15.21 €
Buy Now
LTC3122EMSE#TRPBF 0
5002.66 €
2502.72 €
1002.86 €
253.84 €
15.21 €
Buy Now
LTC3122IMSE#PBF 0
5002.95 €
2503.01 €
1003.17 €
253.84 €
15.77 €
Buy Now
LTC3122IDE#TRPBF 0
25003.01 €
Buy Now
LTC3122IMSE#TRPBF 0
25003.01 €
Buy Now
LTC3122HMSE#TRPBF 0
25003.29 €
Buy Now
show stock=0hide stock=0

Mouser Electronics

ProductStockPriceBuy
LTC3122IMSE#PBF 212
15.96 $
105.46 $
503.98 $
2503.39 $
Buy Now
LTC3122IDE#PBF 260
15.96 $
105.46 $
503.98 $
2503.39 $
Buy Now
LTC3122EDE#PBF 182
15.08 $
104.66 $
503.40 $
2502.89 $
Buy Now
LTC3122EMSE#PBF 6
15.08 $
104.66 $
503.40 $
2502.89 $
Buy Now
LTC3122HMSE#PBF 0
1854.35 $
2593.69 $
Buy Now
LTC3122EMSE#TRPBF 0
25003.59 $
Buy Now
LTC3122EDE#TRPBF 0
25003.59 $
Buy Now
LTC3122IDE#TRPBF 0
25004.19 $
Buy Now
LTC3122IMSE#TRPBF 0
25004.19 $
Buy Now
LTC3122HMSE#TRPBF 0
25004.55 $
Buy Now
show stock=0hide stock=0

Quest Components

ProductStockPriceBuy
LTC3122EDE#PBF 24
92.86 $
43.25 $
13.90 $
Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
LTC3122EDE#PBF 4
255.38 SGD
18.03 SGD
Buy Now

Farnell element14

ProductStockPriceBuy
LTC3122EDE#PBF 4
1002.34 GBP
502.42 GBP
252.51 GBP
103.44 GBP
14.17 GBP
Buy Now

RS Components

ProductStockPriceBuy
LTC3122EDE#PBF 2482
102.50 GBP
22.57 GBP
Buy Now
LTC3122EDE#PBF 562
102.50 GBP
Buy Now

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LTC3122. Optional, compare LTC3122 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
50% LTC3458 LTC3458 product overviewLTC3458 product overview Linear Technology DFN-12

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3122.

V-IN min. 1.8 V, Current-Limit typ. 3.5 A, V-OUT max. 15 V, Frequency typ. 1000 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
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