LT1976 Buck Converter overview

Description

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Category
Sub-Category

LT1976 is a 60.00 V non-sync Buck Converter from with 1.24 A output current. The maximum 60.00 V input voltage can be regulated down into a 1.25 V to 30.00 V output voltage.

It requires are a typical inductor size of 33.00 µH, a typical external component count of 13 and achieves a peak efficiency of 87 %. Further LT1976 characteristics are a fixed 200 kHz switching frequency and 1 available package option(s): TSSOP-16 .

For the LT1976 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. 3.30 V
V-IN max. 60.00 V
I-OUT? 1.24 A
V-OUT min. 1.25 V
V-OUT max. 30.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 200 kHz
Frequency fixed
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 230 kHz
Frequency adj./ ext.clock max 600 kHz
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK yes
Quiescent current max. 4100 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 140 °C
thermal shutdown typ.
Inductor size typ. 33.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 87 %
Component count min. 13
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP TSSOP-16
DIP
TO
DDPAK

LT1976 Datasheet

Link to the most up-to-date LT1976 datasheet and the product page for EVM, tools and support information.

LT1976

LT1976 Sample stock and distributor price breaks

LT1976 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with LT1976 stock available

Available Distributors with stock: 13

Arrow Electronics

ProductStockPriceBuy
LT1976EFE#PBF 198
10004.50 $
5004.68 $
2504.79 $
1005.04 $
256.11 $
19.20 $
Buy Now
LT1976HFE#PBF 197
10005.46 $
5005.68 $
2505.81 $
1006.12 $
257.41 $
111.15 $
Buy Now
LT1976BEFE 0 Buy Now
LT1976IFE#PBF 0
10005.18 $
5005.39 $
2505.51 $
1005.81 $
957.02 $
Buy Now
LT1976HFE#TRPBF 0
25005.81 $
Buy Now
LT1976BIFE#TRPBF 0
25005.04 $
Buy Now
LT1976BIFE#PBF 0
10004.73 $
5004.92 $
2505.04 $
1005.30 $
956.41 $
Buy Now
LT1976IFE#TRPBF 0
25005.70 $
Buy Now
LT1976BEFE#PBF 0
10003.94 $
5004.10 $
2504.20 $
1004.42 $
955.35 $
Buy Now
LT1976BEFE#TRPBF 0
25004.22 $
Buy Now
LT1976BEFE#TRPBF 0
25004.22 $
Buy Now
LT1976EFE#TRPBF 0
25004.97 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT1976IFE#TRPBF 1996
5005.46 €
2505.58 €
1005.88 €
257.52 €
110.71 €
Buy Now
LT1976IFE#TRPBF 1996
5005.46 €
2505.58 €
1005.88 €
257.52 €
110.71 €
Buy Now
LT1976EFE#TRPBF 1790
5004.76 €
2504.87 €
1005.13 €
256.56 €
19.34 €
Buy Now
LT1976EFE#TRPBF 1790
5004.76 €
2504.87 €
1005.13 €
256.56 €
19.34 €
Buy Now
LT1976IFE#PBF 1608
5005.17 €
2505.29 €
1005.57 €
256.73 €
110.14 €
Buy Now
LT1976BEFE#PBF 1018
5003.94 €
2504.03 €
1004.24 €
255.13 €
17.72 €
Buy Now
LT1976EFE#PBF 566
5004.49 €
2504.60 €
1004.84 €
255.85 €
18.82 €
Buy Now
LT1976BIFE#PBF 420
5004.72 €
2504.83 €
1005.08 €
256.15 €
19.25 €
Buy Now
DC481A 1
190.98 €
Buy Now
LT1976EFE#TRPBF 0
25004.62 €
Buy Now
LT1976IFE#TRPBF 0
25005.30 €
Buy Now
LT1976BEFE#TRPBF 0
25004.00 €
Buy Now
LT1976BIFE#TRPBF 0
25004.79 €
Buy Now
LT1976HFE#TRPBF 0
25005.58 €
Buy Now
LT1976HFE#PBF 0
1905.87 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LT1976EFE#PBF 198
5004.68 $
2504.79 $
1005.04 $
256.11 $
29.20 $
Buy Now
LT1976HFE#PBF 197
5005.68 $
2505.81 $
1006.12 $
257.41 $
211.15 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT1976EFE#PBF 285
19.68 $
256.43 $
1005.31 $
2505.04 $
5004.93 $
10004.74 $
Buy Now
LT1976IFE#PBF 244
111.13 $
257.39 $
1006.11 $
2505.80 $
5005.67 $
10005.45 $
Buy Now
LT1976BEFE#PBF 235
18.48 $
255.63 $
1004.65 $
2504.42 $
5004.32 $
10004.15 $
Buy Now
LT1976BIFE#PBF 240
110.16 $
256.75 $
1005.58 $
2505.30 $
5005.18 $
10004.98 $
Buy Now
LT1976HFE#PBF 190
111.74 $
257.80 $
1006.44 $
2506.12 $
5005.98 $
10005.75 $
Buy Now

Rochester Electronics

ProductStockPriceBuy
LT1976HFE#PBF 6555
10006.07 $
5006.39 $
1006.65 $
256.93 $
17.46 $
Buy Now

Bristol Electronics

ProductStockPriceBuy
LT1976EFE 60 Buy Now
LT1976EFE#PBF 10 Buy Now

Quest Components

ProductStockPriceBuy
LT1976EFE 4
47.91 $
28.99 $
110.79 $
Buy Now
LT1976EFE#PBF 8
48.29 $
29.42 $
111.30 $
Buy Now

RS Components

ProductStockPriceBuy
LT1976IFE#PBF 49
486.66 GBP
197.00 GBP
Buy Now
LT1976BIFE#PBF 94
485.67 GBP
196.27 GBP
Buy Now
LT1976EFE#PBF 51
485.28 GBP
195.83 GBP
Buy Now

ComS.I.T.

ProductStockPriceBuy
LT1976EFEPBF 88

Schukat electronic

ProductStockPriceBuy
LT1976IFEPBF 7
17.75 €
106.55 €
505.95 €
1005.75 €
Buy Now
LT1976EFEPBF 0
16.75 €
105.75 €
505.20 €
1005.00 €
Buy Now
show stock=0hide stock=0

Chip 1 Exchange

ProductStockPriceBuy
LT1976EFE 203

element14 Asia-Pacific

ProductStockPriceBuy
LT1976IFE#PBF 0
5008.50 SGD
2508.70 SGD
1009.16 SGD
2511.07 SGD
116.67 SGD
Buy Now
LT1976EFE#PBF 61
5007.40 SGD
2507.57 SGD
1007.96 SGD
259.63 SGD
114.50 SGD
Buy Now
show stock=0hide stock=0

Farnell element14

ProductStockPriceBuy
LT1976IFE#PBF 0
1004.41 GBP
255.00 GBP
17.60 GBP
Buy Now
LT1976BIFE#PBF 0
1003.83 GBP
254.34 GBP
16.76 GBP
Buy Now
LT1976EFE#PBF 61
5003.88 GBP
2503.96 GBP
1004.17 GBP
504.61 GBP
255.06 GBP
107.60 GBP
18.18 GBP
Buy Now
show stock=0hide stock=0

Available Distributors without stock: 1

Richardson RFPD

ProductStockPriceBuy
LT1976HFE#PBF 0
956.92 $
1006.53 $
5006.35 $
10006.19 $
50005.96 $
Buy Now
LT1976BIFE#TRPBF 0
25005.44 $
50005.23 $
Buy Now
LT1976IFE#PBF 0
956.56 $
1006.19 $
5006.03 $
10005.87 $
50005.64 $
Buy Now
LT1976BEFE#TRPBF 0
25004.54 $
50004.37 $
Buy Now
LT1976BIFE#PBF 0
955.99 $
1005.65 $
5005.50 $
10005.36 $
50005.15 $
Buy Now
LT1976BEFE#PBF 0
955.00 $
1004.72 $
5004.59 $
10004.47 $
50004.30 $
Buy Now
LT1976EFE#TRPBF 0
25005.24 $
50005.05 $
Buy Now
LT1976HFE#TRPBF 0
25006.33 $
50006.09 $
Buy Now
LT1976IFE#TRPBF 0
25006.01 $
50005.78 $
Buy Now
LT1976EFE#PBF 0
955.70 $
1005.39 $
5005.24 $
10005.10 $
50004.91 $
Buy Now

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT1976. Optional, compare LT1976 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT1977 LT1977 product overviewLT1977 product overview Linear Technology TSSOP-16
0% LT3434 LT3434 product overviewLT3434 product overview Linear Technology TSSOP-16
0% LT3435 LT3435 product overviewLT3435 product overview Linear Technology TSSOP-16

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT1976.

V-IN max. 60 V, I-OUT 1.24 A, V-OUT min. 1.25 V, Frequency typ. 200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404054150 15.0 2.0 2.2 86.00 5 x 5 x 4
74404063150 15.0 1.5 1.9 125.00 6 x 6 x 2.8
74404064120 12.0 2.2 3.0 58.00 6 x 6 x 4.5
74404064150 15.0 2.1 2.7 68.00 6 x 6 x 4.5
74404064180 18.0 1.9 2.4 81.00 6 x 6 x 4.5
74404084150 15.0 2.6 3.2 47.00 8 x 8 x 4.2
74404084180 18.0 2.4 2.9 53.00 8 x 8 x 4.2
744065150 15.0 2.2 2.3 69.00 10 x 10 x 3.1
744066180 18.0 2.8 3.0 54.00 10 x 10 x 4.1
744071150 15.0 2.8 2.3 46.00 8 x 8 x 4.6
74408943150 15.0 1.4 1.7 118.00 4.8 x 4.8 x 4.1
7447715180 18.0 3.2 3.2 37.00 12 x 12 x 4.5
7447720150 15.0 2.4 3.0 33.40 7.8 x 7.8 x 10
744773112 12.0 1.3 1.6 156.00 4 x 4.5 x 3.5
744775112 12.0 2.2 2.2 41.70 7 x 7.8 x 5.5
744775115 15.0 1.9 2.2 43.90 7 x 7.8 x 5.5
744775118 18.0 1.9 2.1 52.60 7 x 7.8 x 5.5
744776112 12.0 2.7 3.2 32.60 9 x 10 x 5.9
744776115 15.0 2.5 2.9 34.00 9 x 10 x 5.9
744776118 18.0 2.4 2.4 42.80 9 x 10 x 5.9
744777112 12.0 1.8 2.4 54.00 7.3 x 7.3 x 4.5
744777115 15.0 1.6 2.2 70.00 7.3 x 7.3 x 4.5
744777118 18.0 1.5 2.1 80.00 7.3 x 7.3 x 4.5
7447779112 12.0 1.8 2.4 50.00 7.3 x 7.3 x 4.5
7447779115 15.0 1.6 2.2 70.00 7.3 x 7.3 x 4.5
7447779118 18.0 1.5 2.1 80.00 7.3 x 7.3 x 4.5
744778112 12.0 1.7 2.2 76.00 7.3 x 7.3 x 3.4
744778115 15.0 1.5 1.8 100.00 7.3 x 7.3 x 3.4
744778118 18.0 1.4 1.7 114.00 7.3 x 7.3 x 3.4
7447789112 12.0 1.7 1.9 76.00 7.3 x 7.3 x 3.5
7447789115 15.0 1.5 1.8 100.00 7.3 x 7.3 x 3.5
7447789118 18.0 1.4 1.7 114.00 7.3 x 7.3 x 3.5
744787120 12.0 2.5 2.4 45.00 7.8 x 7 x 5
744787150 15.0 2.3 2.1 52.00 7.8 x 7 x 5
744787180 18.0 2.2 1.9 67.00 7.8 x 7 x 5
784773112 12.0 1.3 1.6 156.00 4 x 4.5 x 3.5
784774112 12.0 2.0 1.9 82.00 5.2 x 5.8 x 4.85
784774115 15.0 1.5 1.9 89.00 5.2 x 5.8 x 4.85
784774118 18.0 1.5 1.7 104.00 5.2 x 5.8 x 4.85
784775112 12.0 2.2 2.2 42.00 7 x 7.8 x 5.5
784775115 15.0 1.9 2.2 44.00 7 x 7.8 x 5.5
784775118 18.0 1.9 2.1 53.00 7 x 7.8 x 5.5
784776112 12.0 2.7 3.2 33.00 9 x 10 x 5.9
784776115 15.0 2.5 2.9 34.00 9 x 10 x 5.9
784776118 18.0 2.4 2.4 43.00 9 x 10 x 5.9
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