LT1976 Buck Converter overview

Description

Manufacturer
 
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: 9

ARROW-NAC (4)

ProductStockPriceBuy
LT1976HFE#PBF102
16.93 USD
1005.71 USD
Buy Now
LT1976BIFE#PBF434
16.00 USD
1004.94 USD
Buy Now
LT1976EFE#PBF262
15.71 USD
1004.71 USD
Buy Now
LT1976IFE#PBF1297
16.57 USD
1005.41 USD
Buy Now

Chip-One-Stop (6)

ProductStockPriceBuy
LT1976BEFE#TRPBF5000
25004.63 USD
Buy Now
LT1976BIFE#PBF154
19.13 USD
57.80 USD
107.62 USD
507.18 USD
1006.77 USD
Buy Now
LT1976EFE#PBF910
19.40 USD
58.03 USD
107.84 USD
507.39 USD
1006.97 USD
2006.81 USD
Buy Now
LT1976HFE#PBF102
1007.82 USD
Buy Now
LT1976HFE#PBF102
1007.82 USD
Buy Now
LT1976IFE#PBF2289
110.60 USD
58.98 USD
108.87 USD
258.47 USD
508.26 USD
1007.84 USD
Buy Now

DIGI-KEY (5)

ProductStockPriceBuy
LT1976EFE#PBF424
18.04 USD
255.71 USD
1004.71 USD
Buy Now
LT1976IFE#PBF665
19.25 USD
256.57 USD
1005.41 USD
Buy Now
LT1976BEFE#PBF194
17.21 USD
255.00 USD
1004.12 USD
Buy Now
LT1976BIFE#PBF380
18.64 USD
256.00 USD
1004.94 USD
Buy Now
DC481A2
1100.50 USD
Buy Now
LT1976BEFE#TRPBF0
25004.22 USD
Buy Now
LT1976EFE#TRPBF0
25004.81 USD
Buy Now
LT1976BIFE#TRPBF0
25005.04 USD
Buy Now
LT1976IFE#TRPBF0
25005.51 USD
Buy Now
LT1976HFE#PBF0
1905.71 USD
Buy Now
LT1976HFE#TRPBF0
25005.81 USD
Buy Now

Element14 (3)

ProductStockPriceBuy
LT1976BIFE#PBF87
113.81 USD
259.59 USD
1007.90 USD
Buy Now
LT1976EFE#PBF449
112.85 USD
259.13 USD
1007.53 USD
Buy Now
LT1976IFE#PBF124
114.79 USD
2510.50 USD
1008.65 USD
Buy Now

FARNELL-ELEMENT14 (3)

ProductStockPriceBuy
LT1976BIFE#PBF87Buy Now
LT1976EFE#PBF1690Buy Now
LT1976IFE#PBF124Buy Now

NEWARK (2)

ProductStockPriceBuy
LT1976BEFE#PBF0
17.17 USD
254.87 USD
1004.12 USD
Buy Now
LT1976BIFE#PBF0
14.94 USD
Buy Now
LT1976BIFE#TRPBF0
16.30 USD
25006.00 USD
Buy Now
LT1976EFE#PBF2
18.06 USD
255.47 USD
1004.71 USD
Buy Now
LT1976IFE#PBF84
19.26 USD
256.28 USD
1005.41 USD
Buy Now
LT1976IFE#TRPBF0
19.53 USD
25006.84 USD
Buy Now

RS-COMPONENTS (3)

ProductStockPriceBuy
LT1976BIFE#PBF48Buy Now
LT1976EFE#PBF226Buy Now
LT1976IFE#PBF24Buy Now

Reichelt Elektronik (1)

ProductStockPriceBuy
LT1976IFE#PBF1Buy Now

Schukat (2)

ProductStockPriceBuy
LT1976EFEPBF120Buy Now
LT1976IFEPBF14Buy Now

Available Distributors with stock: 0

no online Distributor with LT1976 stock available

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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