LTC1879 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LTC1879 is a 10.00 V sync Buck Converter from with 1.20 A output current. The maximum 10.00 V input voltage can be regulated down into a 0.80 V to 10.00 V output voltage.

It requires are a typical inductor size of 6.20 µH, a typical external component count of 8 and achieves a peak efficiency of 95 %. Further LTC1879 characteristics are a fixed 550 kHz switching frequency and 1 available package option(s): TSSOP-16 .

For the LTC1879 replacement search, please 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. 2.65 V
V-IN max. 10.00 V
I-OUT? 1.20 A
V-OUT min. 0.80 V
V-OUT max. 10.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 550 kHz
Frequency fixed
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 350 kHz
Frequency adj./ ext.clock max 750 kHz
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK yes
Quiescent current max. 365 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 6.20 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 95 %
Component count min. 8
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP TSSOP-16
DIP
TO
DDPAK

LTC1879 Datasheet

Link to the most up-to-date LTC1879 datasheet and the product page for EVM, tools and support information.

LTC1879

LTC1879 Sample stock and distributor price breaks

LTC1879 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 6

Digi-Key (2)

ProductStockPriceBuy
LTC1879EGN#PBF229
17.38 USD
254.90 USD
1003.74 USD
Buy Now
DC432A1
176.50 USD
10075.38 USD
Buy Now
LTC1879EGN#TRPBF0
25003.85 USD
Buy Now

Element14 (1)

ProductStockPriceBuy
LTC1879EGN#PBF145
111.35 USD
257.78 USD
1006.36 USD
Buy Now

Farnell Element14 (1)

ProductStockPriceBuy
LTC1879EGN#PBF254Buy Now

Mouser-Electronics (1)

ProductStockPriceBuy
LTC1879EGN#PBF228
17.58 USD
106.95 USD
255.03 USD
1003.84 USD
Buy Now
LTC1879EGN#TRPBFNone
25003.95 USD
Buy Now

RS Components (1)

ProductStockPriceBuy
LTC1879EGN#PBF109Buy Now

Transfer Multisort Elektronik (1)

ProductStockPriceBuy
LTC1879EGN#PBF6Buy Now

Available Distributors without stock: 2

Newark Electronics (0)

ProductStockPriceBuy
LTC1879EGN#PBF0
17.16 USD
254.74 USD
1003.67 USD
Buy Now

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 8

Arrow Electronics

ProductStockPriceBuy
LTC1879EGN#TR 2500
25006.52 $
Buy Now
LTC1879EGN#TRPBF 1799
1003.77 $
Buy Now
LTC1879EGN 1506
184.50 $
1033.40 $
5018.12 $
1009.60 $
5008.60 $
10008.35 $
25008.12 $
50008.00 $
100007.90 $
250007.58 $
Buy Now
LTC1879EGN#PBF 49
14.26 $
1003.67 $
Buy Now
LTC1879EGN 0
184.50 $
1033.40 $
5018.12 $
1009.60 $
5008.60 $
10008.35 $
25008.12 $
50008.00 $
100007.90 $
250007.58 $
Buy Now
LTC1879EGN#TRPBF 0
1003.77 $
Buy Now
LTC1879EGN#TR 0
25006.52 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LTC1879EGN#PBF 229
1003.02 €
253.95 €
15.95 €
Buy Now
DC432A 1
10060.75 €
161.65 €
Buy Now
LTC1879EGN#TRPBF 0
25003.10 €
Buy Now
show stock=0hide stock=0

Mouser Electronics

ProductStockPriceBuy
LTC1879EGN#PBF 228
17.39 $
106.78 $
254.90 $
1003.74 $
Buy Now
LTC1879EGN#TRPBF 0
25003.85 $
Buy Now
LTC1879EGN 0 Buy Now
LTC1879EGN#TR 0 Buy Now
show stock=0hide stock=0

Quest Components

ProductStockPriceBuy
LTC1879EGN#PBF 937
8343.15 $
5143.60 $
19.00 $
Buy Now

TME Electronic Components

ProductStockPriceBuy
LTC1879EGN#PBF 6
18.45 $
38.00 $
257.31 $
2506.40 $
5005.76 $
Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
LTC1879EGN#PBF 145
19.08 $
256.22 $
1005.08 $
Buy Now

Farnell element14

ProductStockPriceBuy
LTC1879EGN#PBF 254
15.70 GBP
105.19 GBP
253.45 GBP
503.40 GBP
1003.35 GBP
Buy Now

RS Components

ProductStockPriceBuy
LTC1879EGN#PBF 109
104.25 GBP
503.88 GBP
1003.65 GBP
2003.56 GBP
Buy Now

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LTC1879. Optional, compare LTC1879 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% MP2209 MP2209 product overviewMP2209 product overview MPS QFN-14

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC1879.

V-IN max. 10 V, I-OUT 1.2 A, V-OUT min. 0.8 V, Frequency typ. 550 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025003 3.3 1.5 1.8 85.00 2.8 x 2.8 x 3
744025004 4.7 1.4 1.7 100.00 2.8 x 2.8 x 3
74404032033 3.3 1.5 1.5 70.00 3 x 3 x 1.5
74404041033 3.3 1.8 2.1 69.00 4 x 4 x 1.2
74404041047 4.7 1.6 1.9 91.00 4 x 4 x 1.2
74404042033 3.3 2.0 2.9 55.00 4 x 4 x 1.8
74404042047 4.7 1.7 2.2 70.00 4 x 4 x 1.8
74404052033 3.3 2.6 3.0 42.20 5 x 5 x 2
74404052039 3.9 2.4 2.8 50.50 5 x 5 x 2
74404052047 4.7 2.3 2.7 55.90 5 x 5 x 2
7440420027 2.7 2.0 2.2 47.00 4.8 x 4.8 x 2
744042003 3.3 2.0 1.8 50.00 4.8 x 4.8 x 2
7440420039 3.9 1.8 1.7 60.00 4.8 x 4.8 x 2
744042004 4.7 1.7 1.7 70.00 4.8 x 4.8 x 2
7440430027 2.7 2.4 2.0 25.00 4.8 x 4.8 x 3
744043003 3.3 2.2 1.8 30.00 4.8 x 4.8 x 3
7440430039 3.9 1.7 1.7 50.00 4.8 x 4.8 x 3
744043004 4.7 1.6 1.7 50.00 4.8 x 4.8 x 3
7440450027 2.7 1.5 2.7 96.00 4.5 x 3.2 x 2.9
744045003 3.3 1.4 2.7 104.00 4.5 x 3.2 x 2.9
7440450039 3.9 1.3 2.5 112.00 4.5 x 3.2 x 2.9
744045004 4.7 1.2 2.0 120.00 4.5 x 3.2 x 2.9
744052003 3.0 2.2 2.4 40.00 5.8 x 5.8 x 2
7440520039 3.9 2.0 2.1 50.00 5.8 x 5.8 x 2
744053003 3.0 2.8 2.5 20.00 5.8 x 5.8 x 3
744053004 4.2 2.5 2.2 30.00 5.8 x 5.8 x 3
7440530047 4.7 2.4 2.0 30.00 5.8 x 5.8 x 3
744062003 3.3 2.8 2.5 20.00 6.8 x 6.8 x 2.5
7440680027 2.7 2.2 1.9 52.00 8 x 8 x 1.2
7440680033 3.3 2.0 1.8 61.00 8 x 8 x 1.2
7440680047 4.7 1.9 1.6 72.00 8 x 8 x 1.2
7440690033 3.3 2.6 2.3 42.00 8 x 8 x 1.5
7440690047 4.7 2.2 1.8 56.00 8 x 8 x 1.5
7440700033 3.3 3.2 2.6 30.00 8 x 8 x 2
7440700047 4.7 3.0 2.2 37.00 8 x 8 x 2
74408941029 2.9 1.6 3.0 101.00 4.8 x 4.8 x 2.1
74408941035 3.5 1.5 2.8 113.00 4.8 x 4.8 x 2.1
74408942047 4.7 1.6 2.9 86.80 4.8 x 4.8 x 3.1
74438323033 3.3 1.3 2.1 220.00 2.5 x 2 x 1
74438324033 3.3 1.3 2.6 226.00 2.5 x 2 x 1.2
74438335047 4.7 1.5 2.8 141.00 3 x 3 x 1.5
744773027 2.7 2.3 3.0 39.00 4 x 4.5 x 3.5
744773033 3.3 2.0 2.9 41.00 4 x 4.5 x 3.5
744773039 3.9 1.9 2.6 54.00 4 x 4.5 x 3.5
744773047 4.7 1.8 2.5 59.00 4 x 4.5 x 3.5
7447785003 3.3 2.8 3.0 43.00 5.9 x 6.2 x 3.3
7447785004 4.7 2.2 2.5 60.00 5.9 x 6.2 x 3.3
7447786004 4.7 2.8 2.8 57.00 5.9 x 6.2 x 5.1
78438323033 3.3 1.3 2.1 220.00 2.5 x 2 x 1
78438335047 4.7 1.5 2.8 141.00 3 x 3 x 1.5
784773033 3.3 2.0 2.9 41.00 4 x 4.5 x 3.5
784773039 3.9 1.9 2.6 54.00 4 x 4.5 x 3.5
784773047 4.7 1.8 2.5 59.00 4 x 4.5 x 3.5
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