LT1776 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

LT1776 is a 40.00 V non-sync Buck Converter from with 0.55 A output current. The maximum 40.00 V input voltage can be regulated down into a 1.24 V to 38.00 V output voltage.

It requires are a typical inductor size of 100.00 µH, a typical external component count of 9 and achieves a peak efficiency of 82 %. Further LT1776 characteristics are a fixed 200 kHz switching frequency and 2 available package option(s): SO-8 PDIP .

For the LT1776 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. 7.40 V
V-IN max. 40.00 V
I-OUT? 0.55 A
V-OUT min. 1.24 V
V-OUT max. 38.00 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. 250 kHz
Frequency adj./ ext.clock max 400 kHz
Softstart no
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 900 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 100.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 82 %
Component count min. 9
current limit adjustable no
Nr.of packages 2
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC SO-8
SOP
DIP PDIP
TO
DDPAK

LT1776 Datasheet

Link to the most up-to-date LT1776 datasheet and the product page for EVM, tools and support information.

LT1776

LT1776 Sample stock and distributor price breaks

LT1776 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 7

Chip One Stop (12)

ProductStockPriceBuy
LT1776CN8#PBF19
14.92 USD
104.25 USD
Buy Now
LT1776CN8#PBF19
14.92 USD
104.25 USD
Buy Now
LT1776CS8#PBF80
15.26 USD
103.72 USD
503.45 USD
Buy Now
LT1776CS8#PBF72
15.09 USD
104.39 USD
503.55 USD
Buy Now
LT1776CS8#PBF80
15.26 USD
103.72 USD
503.45 USD
Buy Now
LT1776CS8#PBF72
15.09 USD
104.39 USD
503.55 USD
Buy Now
LT1776CS8#TRPBF487
25003.68 USD
Buy Now
LT1776CS8#TRPBF487
25003.68 USD
Buy Now
LT1776IS8#PBF82
16.01 USD
104.26 USD
503.95 USD
Buy Now
LT1776IS8#PBF490
15.86 USD
105.06 USD
504.09 USD
Buy Now
LT1776IS8#PBF82
16.01 USD
104.26 USD
503.95 USD
Buy Now
LT1776IS8#PBF490
15.86 USD
105.06 USD
504.09 USD
Buy Now

Conrad COM (2)

ProductStockPriceBuy
LT1776CN8#PBF22Buy Now
LT1776CS856Buy Now

Conrad UK (2)

ProductStockPriceBuy
LT1776CN8#PBF22Buy Now
LT1776CS856Buy Now

Digi-Key (8)

ProductStockPriceBuy
LT1776IS8#PBF2979
16.15 USD
254.08 USD
1003.21 USD
Buy Now
LT1776CN8#PBF305
15.13 USD
253.40 USD
1002.70 USD
Buy Now
LT1776CS8#TRPBF0
25002.91 USD
Buy Now
LT1776CS8#TRPBF779
16.17 USD
255.51 USD
1003.49 USD
2503.20 USD
Buy Now
LT1776CS8#TRPBF779
16.17 USD
255.51 USD
1003.49 USD
2503.20 USD
Buy Now
LT1776IS8#TRPBF0
25003.32 USD
Buy Now
LT1776IS8#TRPBF2102
17.03 USD
256.28 USD
1003.98 USD
2503.65 USD
Buy Now
LT1776IS8#TRPBF2102
17.03 USD
256.28 USD
1003.98 USD
2503.65 USD
Buy Now
LT1776CS8#PBF64
15.38 USD
253.57 USD
1002.81 USD
Buy Now
DC204A-B8
176.50 USD
10075.38 USD
Buy Now
LT1776IN8#PBF0
2503.16 USD
Buy Now

RS Components (1)

ProductStockPriceBuy
LT1776CS8#PBF50Buy Now

Reichelt Elektronik (1)

ProductStockPriceBuy
LT1776CS8#PBF1Buy Now

Schukat Electronic (1)

ProductStockPriceBuy
LT1776CS8PBF47Buy Now

Available Distributors without stock: 3

Element14 (0)

ProductStockPriceBuy
LT1776CS8#PBF0Buy Now
LT1776IS8#PBF0Buy Now

Farnell Element14 (0)

ProductStockPriceBuy
LT1776CN8#PBF0Buy Now
LT1776CN8#PBF0Buy Now
LT1776CS8#PBF0Buy Now
LT1776CS8#PBF0Buy Now
LT1776IS8#PBF0Buy Now
LT1776IS8#PBF0Buy Now

Rutronik (0)

ProductStockPriceBuy
nnBuy Now

Available Distributors with stock: 11

Arrow Electronics

ProductStockPriceBuy
LT1776CN8#PBF 19
1002.65 $
13.05 $
Buy Now
LT1776IS8#PBF 2
1003.15 $
13.60 $
Buy Now
LT1776CS8#PBF 0
1002.75 $
13.15 $
Buy Now
LT1776IS8#TRPBF 0
1003.25 $
Buy Now
LT1776IS8#TRPBF 0
1003.25 $
Buy Now
LT1776CS8#TRPBF 0
1002.85 $
Buy Now
LT1776CS8#TRPBF 0
1002.85 $
Buy Now
show stock=0hide stock=0

Digi-Key

ProductStockPriceBuy
LT1776IS8#PBF 2979
1002.81 €
253.57 €
15.38 €
Buy Now
LT1776IS8#TRPBF 2102
2503.19 €
1003.48 €
255.49 €
16.15 €
Buy Now
LT1776IS8#TRPBF 2102
2503.19 €
1003.48 €
255.49 €
16.15 €
Buy Now
LT1776CS8#TRPBF 779
2502.80 €
1003.05 €
254.82 €
15.40 €
Buy Now
LT1776CS8#TRPBF 779
2502.80 €
1003.05 €
254.82 €
15.40 €
Buy Now
LT1776CN8#PBF 305
1002.36 €
252.98 €
14.49 €
Buy Now
LT1776CS8#PBF 64
1002.45 €
253.12 €
14.70 €
Buy Now
DC204A-B 8
10065.91 €
166.89 €
Buy Now
LT1776CS8#TRPBF 0
25002.54 €
Buy Now
LT1776IS8#TRPBF 0
25002.90 €
Buy Now
LT1776IN8#PBF 0
2502.76 €
Buy Now
show stock=0hide stock=0

Verical

ProductStockPriceBuy
LT1776CN8#PBF 19
33.05 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
LT1776IS8#PBF 1788
16.16 $
105.65 $
254.08 $
1003.21 $
Buy Now
LT1776CN8#PBF 185
15.13 $
104.71 $
253.40 $
1002.70 $
Buy Now
LT1776IN8#PBF 150
15.91 $
105.41 $
253.91 $
1003.16 $
Buy Now
LT1776CS8#PBF 0
15.39 $
104.94 $
253.57 $
1002.80 $
Buy Now
LT1776CS8#TRPBF 0
25002.91 $
Buy Now
LT1776IS8#TRPBF 0
25003.32 $
Buy Now
LT1776CS8 0 Buy Now
LT1776IS8 0 Buy Now
LT1776CN8 0 Buy Now
LT1776IN8 0 Buy Now
LT1776CS8#TR 0 Buy Now
show stock=0hide stock=0

Bristol Electronics

ProductStockPriceBuy
LT1776IS8 71 Buy Now

Quest Components

ProductStockPriceBuy
LT1776CS8 122
682.60 $
73.00 $
16.00 $
Buy Now
LT1776CS8 8
64.40 $
35.00 $
16.00 $
Buy Now
LT1776CSA 8
63.75 $
25.00 $
17.50 $
Buy Now
LT1776IS8#PBF 9
63.53 $
24.70 $
17.05 $
Buy Now

ComS.I.T.

ProductStockPriceBuy
LT1776IS8 95

Schukat electronic

ProductStockPriceBuy
LT1776CS8PBF 47
15.20 €
103.50 €
502.90 €
1002.80 €
Buy Now

Chip1Stop

ProductStockPriceBuy
LT1776CS8#TRPBF 487
25003.68 $
Buy Now
LT1776CS8#PBF 80
503.45 $
103.72 $
15.26 $
Buy Now
LT1776IS8#PBF 82
503.95 $
104.26 $
16.01 $
Buy Now
LT1776CN8#PBF 19
104.25 $
14.92 $
Buy Now
LT1776CS8#PBF 72
503.55 $
104.39 $
15.09 $
Buy Now
LT1776IS8#PBF 490
504.09 $
105.06 $
15.86 $
Buy Now

New Advantage Corporation

ProductStockPriceBuy
LT1776IS8 17 Buy Now

RS Components

ProductStockPriceBuy
LT1776CS8#PBF 50
103.94 GBP
203.77 GBP
303.59 GBP
502.62 GBP
Buy Now

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT1776. Optional, compare LT1776 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% MAX15014 MAX15014 product overviewMAX15014 product overview Maxim TQFN-36
0% MAX15015 MAX15015 product overviewMAX15015 product overview Maxim TQFN-36
0% MAX15016 MAX15016 product overviewMAX15016 product overview Maxim TQFN-36
0% MAX15017 MAX15017 product overviewMAX15017 product overview Maxim TQFN-36
0% MAX5080 MAX5080 product overviewMAX5080 product overview Maxim TQFN-32
0% MAX5081 MAX5081 product overviewMAX5081 product overview Maxim TQFN-16
0% MAX5096 MAX5096 product overviewMAX5096 product overview Maxim TSSOP-EP-20, TQFN-16
0% MAX5097 MAX5097 product overviewMAX5097 product overview Maxim TSSOP-EP-20, TQFN-16
0% LM2671 LM2671 product overviewLM2671 product overview Texas Instruments PDIP-8, SOIC-8, WSON-16
0% LM2672 LM2672 product overviewLM2672 product overview Texas Instruments PDIP-8, SOIC-8, WSON-16
25% LT1676 LT1676 product overviewLT1676 product overview Linear Technology SO-8
25% LT1777 LT1777 product overviewLT1777 product overview Linear Technology SO-16
25% LT3437 LT3437 product overviewLT3437 product overview Linear Technology TSSOP-16, DFN-10

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT1776.

V-IN max. 40 V, I-OUT 0.55 A, V-OUT min. 1.24 V, Frequency typ. 200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404042330 33.0 0.7 0.9 460.00 4 x 4 x 1.8
74404052330 33.0 1.0 1.1 387.00 5 x 5 x 2
74404054330 33.0 1.2 1.4 188.00 5 x 5 x 4
74404063330 33.0 1.2 1.5 185.00 6 x 6 x 2.8
744052270 27.0 0.8 0.8 250.00 5.8 x 5.8 x 2
744053270 27.0 1.1 0.8 135.00 5.8 x 5.8 x 3
744053330 33.0 0.9 0.8 180.00 5.8 x 5.8 x 3
744062330 33.0 0.9 0.8 150.00 6.8 x 6.8 x 2.5
744065330 33.0 1.6 1.3 139.00 10 x 10 x 3.1
744071330 33.0 1.9 1.5 95.00 8 x 8 x 4.6
74408942330 33.0 0.8 1.1 424.00 4.8 x 4.8 x 3.1
74408943330 33.0 0.9 1.2 259.00 4.8 x 4.8 x 4.1
7447462330 33.0 1.4 1.4 153.00 5.5 x 5.5 x 8.5
744773127 27.0 0.9 1.0 328.00 4 x 4.5 x 3.5
744773133 33.0 0.9 0.9 370.00 4 x 4.5 x 3.5
744773139 39.0 0.8 0.9 418.00 4 x 4.5 x 3.5
744775133 33.0 1.4 1.5 87.80 7 x 7.8 x 5.5
744775139 39.0 1.3 1.3 116.00 7 x 7.8 x 5.5
744777133 33.0 1.1 1.4 140.00 7.3 x 7.3 x 4.5
744777139 39.0 1.1 1.2 145.00 7.3 x 7.3 x 4.5
7447779133 33.0 1.1 1.4 140.00 7.3 x 7.3 x 4.5
7447779139 39.0 1.1 1.2 145.00 7.3 x 7.3 x 4.5
744778127 27.0 1.3 1.3 140.00 7.3 x 7.3 x 3.4
744778133 33.0 1.2 1.2 153.00 7.3 x 7.3 x 3.4
744778139 39.0 1.0 1.1 214.00 7.3 x 7.3 x 3.4
7447789127 27.0 1.3 1.4 130.00 7.3 x 7.3 x 3.5
7447789133 33.0 1.2 1.2 153.00 7.3 x 7.3 x 3.5
7447789139 39.0 1.0 1.1 209.00 7.3 x 7.3 x 3.5
744787330 33.0 1.5 1.3 137.00 7.8 x 7 x 5
784773127 27.0 0.9 1.0 328.00 4 x 4.5 x 3.5
784773133 33.0 0.9 0.9 370.00 4 x 4.5 x 3.5
784773139 39.0 0.8 0.9 418.00 4 x 4.5 x 3.5
784774127 27.0 1.2 1.4 133.00 5.2 x 5.8 x 4.85
784774133 33.0 1.1 1.2 150.00 5.2 x 5.8 x 4.85
784774139 39.0 0.9 1.1 215.00 5.2 x 5.8 x 4.85
784775133 33.0 1.4 1.5 89.00 7 x 7.8 x 5.5
784775139 39.0 1.3 1.3 116.00 7 x 7.8 x 5.5
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