LTC3428 Boost Converter Overview

Description

Manufacturer
 
Category
Sub-Category

LTC3428 is a 5.25 V, 2.50 A switch current limit non-sync Boost Converter from . The input voltage from 1.60 V to 4.50 V  can be boosted into an output voltage ranging from 1.60 V to 5.25 V.

Features of the Boost Converter are fixed 1000 kHz switching frequency, a typical inductor size of 2.2 µH and it offers a peak efficiency of  up to 92 %. The minimum external component count is 11 and LTC3428 is available in 1 package option(s): DFN-10 .

For LTC3428 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. 1.60 V
V-IN max. 4.50 V
Current-Limit typ.? 2.50 A
V-OUT min. 1.60 V
V-OUT max. 5.25 V
VOUT adjustable
VOUT programmable no
sync/non-sync non-sync
Frequency typ. 1000 kHz
Frequency adjustable fixed
Frequency selectable
Frequency adj. min.
Frequency adj. max.
extern clock sync. no
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
LBI/LBO no
Frequency sync. min.
Frequency sync. max.
Down Mode no
Quiescent current max. 2000 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 2.2 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Boost
Peak Efficiency 92 %
Component count min. 11
current limit adjustable no
Nr.of package options 1
CSP
SC70
SOT
MSOP
QFN/DFN DFN-10
SO/SOIC
SOP
DIP
TO
DDPAK

LTC3428 Datasheet

Link to the most up-to-date LTC3428 datasheet and the product page for EVM, tools and support information.

LTC3428

LTC3428 Price breaks and distributor sample stock

LTC3428 prices and available online distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 4

Chip One Stop (1)

ProductStockPriceBuy
LTC3428EDD#PBF32
16.80 USD
104.83 USD
254.75 USD
Buy Now

Digi-Key (4)

ProductStockPriceBuy
LTC3428EDD#PBF677
17.18 USD
254.76 USD
1003.80 USD
Buy Now
LTC3428EDD#TRPBF0
25003.91 USD
Buy Now
LTC3428EDD#TRPBF2325
18.27 USD
257.38 USD
1004.69 USD
2504.30 USD
Buy Now
LTC3428EDD#TRPBF2325
18.27 USD
257.38 USD
1004.69 USD
2504.30 USD
Buy Now
DC700A3
1170.17 USD
25128.14 USD
Buy Now

Farnell Element14 UK (1)

ProductStockPriceBuy
LTC3428EDD#PBF2Buy Now

RS Components (1)

ProductStockPriceBuy
LTC3428EDD#PBF87Buy Now

Available Distributors without stock: 2

Element14 (0)

ProductStockPriceBuy
LTC3428EDD#PBF0Buy Now

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 8

Digi-Key

ProductStockPriceBuy
LTC3428EDD#TRPBF 2325
2503.76 €
1004.10 €
256.45 €
17.23 €
Buy Now
LTC3428EDD#TRPBF 2325
2503.76 €
1004.10 €
256.45 €
17.23 €
Buy Now
LTC3428EDD#PBF 677
1003.33 €
254.17 €
16.28 €
Buy Now
DC700A 3
25112.04 €
1148.80 €
Buy Now
LTC3428EDD#TRPBF 0
25003.42 €
Buy Now
show stock=0hide stock=0

Mouser Electronics

ProductStockPriceBuy
LTC3428EDD#PBF 516
17.19 $
106.59 $
254.76 $
1003.80 $
Buy Now
LTC3428EDD#TRPBF 0
25003.91 $
Buy Now
LTC3428EDD 0 Buy Now
LTC3428EDD#TR 0 Buy Now
show stock=0hide stock=0

Bristol Electronics

ProductStockPriceBuy
LTC3428EDD#PBF 29 Buy Now

Quest Components

ProductStockPriceBuy
LTC3428EDD#PBF 157
1267.16 $
308.02 $
113.01 $
Buy Now

ComS.I.T.

ProductStockPriceBuy
LTC3428EDDTRMPBF 455

Farnell element14

ProductStockPriceBuy
LTC3428EDD#PBF 2
15.94 GBP
105.10 GBP
253.59 GBP
503.49 GBP
1003.38 GBP
Buy Now

Chip1Stop

ProductStockPriceBuy
LTC3428EDD#PBF 32
254.75 $
104.83 $
16.80 $
Buy Now

RS Components

ProductStockPriceBuy
LTC3428EDD#PBF 87
65.81 GBP
305.40 GBP
614.99 GBP
Buy Now

Available Distributors without stock: 1

Arrow Electronics

ProductStockPriceBuy
LTC3428EDD#TRPBF 0
1003.83 $
Buy Now
LTC3428EDD#PBF 0
1003.73 $
14.17 $
Buy Now

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LTC3428. Optional, compare LTC3428 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LTC3426 LTC3426 product overviewLTC3426 product overview Linear Technology TSOT23-6
10% MAX8752 MAX8752 product overviewMAX8752 product overview Maxim Integrated TDFN-EP-8
50% LT1946 LT1946 product overviewLT1946 product overview Linear Technology MSOP-8
50% LT1946A LT1946A product overviewLT1946A product overview Linear Technology MSOP-8
50% LT3467 LT3467 product overviewLT3467 product overview Linear Technology SOT23-6, DFN-6
50% LT3467A LT3467A product overviewLT3467A product overview Linear Technology SOT23-6, DFN-6
50% MP3212 MP3212 product overviewMP3212 product overview MPS QFN-10
50% RP600K-D RP600K-D product overviewRP600K-D product overview Ricoh DFN-10

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3428.

V-IN min. 1.6 V, Current-Limit typ. 2.5 A, V-OUT max. 5.25 V, Frequency typ. 1000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744305040 0.4 28.0 20.0 0.16 13.5 x 13.3 x 5.2
744306030 0.3 26.0 24.0 0.30 10.5 x 10.3 x 5.5
7443081040 0.4 38.0 21.0 0.29 9.4 x 6.2 x 8.1
744316033 0.3 18.5 20.0 1.75 5.5 x 5.3 x 4.3
744373360033 0.3 9.6 22.0 4.30 5.7 x 5.2 x 3
744383560033 0.3 9.6 12.4 6.00 4.1 x 4.1 x 2.1
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