LT3579 Boost Converter Overview

Description

Manufacturer
 
Category
Sub-Category

LT3579 is a 40.00 V, 4.20 A switch current limit non-sync Boost Converter from . The input voltage from 2.30 V to 16.00 V  can be boosted into an output voltage ranging from 3.50 V to 40.00 V.

Features of the Boost Converter are adjustable 2500 kHz switching frequency, a typical inductor size of 2.2 µH and it offers a peak efficiency of  up to 90 %. The minimum external component count is 15 and LT3579 is available in 2 package option(s): QFN-20 TSSOP-20 .

For LT3579 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. 2.30 V
V-IN max. 16.00 V
Current-Limit typ.? 4.20 A
V-OUT min. 3.50 V
V-OUT max. 40.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync non-sync
Frequency typ. 2500 kHz
Frequency adjustable adjustable
Frequency selectable
Frequency adj. min. 200 kHz
Frequency adj. max. 2500 kHz
extern clock sync. yes
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK no
LBI/LBO no
Frequency sync. min. 200 kHz
Frequency sync. max. 2500 kHz
Down Mode no
Quiescent current max. 2400 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 165 °C
Inductor size typ. 2.2 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Boost
Peak Efficiency 90 %
Component count min. 15
current limit adjustable no
Nr.of package options 2
CSP
SC70
SOT
MSOP
QFN/DFN QFN-20
SO/SOIC
SOP TSSOP-20
DIP
TO
DDPAK

LT3579 Datasheet

Link to the most up-to-date LT3579 datasheet and the product page for EVM, tools and support information.

LT3579

LT3579 Price breaks and distributor sample stock

LT3579 prices and available online distributors.

OEMSecrets.com
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Available Distributors with stock: 0

no online Distributor with LT3579 stock available

Available Distributors with stock: 6

Digi-Key

ProductStockPriceBuy
LT3579IUFD#PBF 1591
1004.42 €
255.34 €
18.05 €
Buy Now
LT3579EFE#TRPBF 1058
1004.34 €
255.25 €
17.91 €
Buy Now
LT3579EFE#TRPBF 1058
1004.34 €
255.25 €
17.91 €
Buy Now
LT3579EUFD#PBF 811
1003.98 €
254.81 €
17.24 €
Buy Now
LT3579IUFD-1#PBF 575
1004.42 €
255.34 €
18.05 €
Buy Now
LT3579EFE#PBF 360
1004.15 €
255.02 €
17.56 €
Buy Now
LT3579EFE-1#PBF 237
1004.15 €
255.02 €
17.56 €
Buy Now
LT3579EFE#TRPBF 0
25003.95 €
Buy Now
DC1514A 0
1135.65 €
Buy Now
LT3579EUFD#TRPBF 0
25003.75 €
Buy Now
LT3579EUFD-1#TRPBF 0
25003.75 €
Buy Now
LT3579EFE-1#TRPBF 0
25003.91 €
Buy Now
LT3579EUFD-1#PBF 0
2193.98 €
Buy Now
LT3579IUFD#TRPBF 0
25004.16 €
Buy Now
LT3579IUFD-1#TRPBF 0
25004.16 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LT3579IUFD#PBF 2078
10004.13 $
5004.30 $
2504.40 $
1004.46 $
255.61 $
28.45 $
Buy Now
LT3579EFE#PBF 246
1004.34 $
254.99 $
37.52 $
Buy Now
LT3579EFE-1#PBF 96
504.78 $
254.92 $
35.08 $
Buy Now
LT3579IFE#PBF 92
505.31 $
255.47 $
25.63 $
Buy Now
LT3579EFE#PBF 53
10003.89 $
5004.05 $
2504.13 $
1004.19 $
255.26 $
27.93 $
Buy Now
LT3579EFE#PBF 31
2504.26 $
1004.35 $
255.26 $
27.93 $
Buy Now
LT3579IUFD-1#PBF 14
10004.13 $
5004.30 $
2504.40 $
1004.46 $
255.61 $
28.45 $
Buy Now
LT3579EUFD#PBF 10
10003.72 $
5003.87 $
2503.96 $
1004.01 $
255.04 $
27.60 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT3579IUFD#PBF 405
18.89 $
255.90 $
1004.88 $
2504.63 $
5004.53 $
10004.35 $
Buy Now
LT3579EFE#PBF 369
18.35 $
255.54 $
1004.58 $
2504.35 $
5004.26 $
10004.09 $
Buy Now
LT3579EUFD#PBF 283
18.00 $
255.31 $
1004.39 $
2504.17 $
5004.07 $
10003.92 $
Buy Now
LT3579IUFD-1#PBF 160
18.89 $
255.90 $
1004.88 $
2504.63 $
5004.53 $
10004.35 $
Buy Now

Quest Components

ProductStockPriceBuy
LT3579EFE#PBF 6
54.50 $
26.00 $
19.00 $
Buy Now

RS Components

ProductStockPriceBuy
LT3579EFE#PBF 0
743.97 GBP
Buy Now
LT3579EFE#PBF 61
16.99 GBP
26.63 GBP
104.64 GBP
203.52 GBP
503.33 GBP
Buy Now
LT3579EFE#PBF 61
104.64 GBP
203.52 GBP
503.33 GBP
Buy Now
show stock=0hide stock=0

Chip1Stop

ProductStockPriceBuy
LT3579EFE#PBF 634
5923.96 $
2963.97 $
1004.10 $
504.82 $
105.29 $
17.27 $
Buy Now

Available Distributors without stock: 3

Richardson RFPD

ProductStockPriceBuy
LT3579EUFD#PBF 0
1464.45 $
5004.32 $
10004.21 $
50004.05 $
Buy Now
LT3579IFE#PBF 0
1485.16 $
5005.02 $
10004.89 $
50004.70 $
Buy Now
LT3579EUFD#TRPBF 0
25004.28 $
50004.12 $
Buy Now
LT3579IUFD-1#PBF 0
1464.95 $
5004.81 $
10004.68 $
50004.51 $
Buy Now
LT3579IUFD#PBF 0
1464.95 $
5004.81 $
10004.68 $
50004.51 $
Buy Now
LT3579IUFD-1#TRPBF 0
25004.75 $
50004.57 $
Buy Now
LT3579EUFD-1#TRPBF 0
25004.28 $
50004.12 $
Buy Now
LT3579EFE-1#TRPBF 0
25004.47 $
50004.30 $
Buy Now
LT3579IFE#TRPBF 0
25004.97 $
50004.77 $
Buy Now
LT3579EFE#PBF 0
1484.65 $
5004.52 $
10004.41 $
50004.23 $
Buy Now
LT3579EFE-1#PBF 0
1484.65 $
5004.52 $
10004.41 $
50004.23 $
Buy Now
LT3579IFE-1#TRPBF 0
25004.97 $
50004.77 $
Buy Now
LT3579EFE#TRPBF 0
25004.47 $
50004.30 $
Buy Now
LT3579EUFD-1#PBF 0
1464.45 $
5004.32 $
10004.21 $
50004.05 $
Buy Now
LT3579IUFD#TRPBF 0
25004.75 $
50004.57 $
Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
LT3579EFE#PBF 0
5006.44 SGD
2506.60 SGD
1006.94 SGD
258.39 SGD
112.64 SGD
Buy Now
LT3579EFE-1#PBF 0
25006.20 SGD
5006.44 SGD
2506.60 SGD
1006.94 SGD
258.39 SGD
112.64 SGD
Buy Now

Farnell element14

ProductStockPriceBuy
LT3579EFE#PBF 0
5003.31 GBP
2503.36 GBP
1003.41 GBP
503.46 GBP
253.51 GBP
104.40 GBP
15.29 GBP
Buy Now
LT3579EFE-1#PBF 0
13.46 GBP
Buy Now

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LT3579. Optional, compare LT3579 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
10% LT3581 LT3581 product overviewLT3581 product overview Linear Technology MSOP-16, DFN-14
10% LT3959 LT3959 product overviewLT3959 product overview Linear Technology QFN-36
25% TPS61175 TPS61175 product overviewTPS61175 product overview Texas Instruments HTSSOP-14
25% TPS61175-Q1 TPS61175-Q1 product overviewTPS61175-Q1 product overview Texas Instruments HTSSOP-14
50% LT3580 LT3580 product overviewLT3580 product overview Linear Technology MSOP-8, DFN-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT3579.

V-IN min. 2.3 V, Current-Limit typ. 4.2 A, V-OUT max. 40 V, Frequency typ. 2500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
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