LT1766 Buck Converter overview

Description

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Category
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LT1766 is a 60.00 V non-sync Buck Converter from with 1.20 A output current. The maximum 60.00 V input voltage can be regulated down into a 1.20 V to 58.00 V output voltage.

It requires are a typical inductor size of 47.00 µH, a typical external component count of 11 and achieves a peak efficiency of 90 %. Further LT1766 characteristics are a fixed 200 kHz switching frequency and 1 available package option(s): TSSOP-16 .

For the LT1766 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. 5.50 V
V-IN max. 60.00 V
I-OUT? 1.20 A
V-OUT min. 1.20 V
V-OUT max. 58.00 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. 228 kHz
Frequency adj./ ext.clock max 700 kHz
Softstart no
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 2200 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 47.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 90 %
Component count min. 11
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP TSSOP-16
DIP
TO
DDPAK

LT1766 Datasheet

Link to the most up-to-date LT1766 datasheet and the product page for EVM, tools and support information.

LT1766

LT1766 Sample stock and distributor price breaks

LT1766 prices and online available distributors.

OEMSecrets.com
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Available Distributors with stock: 0

no online Distributor with LT1766 stock available

Available Distributors with stock: 0

no online Distributor with LT1766 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LT1766. Optional, compare LT1766 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT1956 LT1956 product overviewLT1956 product overview Linear Technology TSSOP-16
10% LT1976 LT1976 product overviewLT1976 product overview Linear Technology TSSOP-16
10% LT1977 LT1977 product overviewLT1977 product overview Linear Technology TSSOP-16
10% MAX5090 MAX5090 product overviewMAX5090 product overview Maxim TQFN-16
50% MAX15014 MAX15014 product overviewMAX15014 product overview Maxim TQFN-36
50% MAX15015 MAX15015 product overviewMAX15015 product overview Maxim TQFN-36
50% MAX15016 MAX15016 product overviewMAX15016 product overview Maxim TQFN-36
50% MAX15017 MAX15017 product overviewMAX15017 product overview Maxim TQFN-36
50% MAX5080 MAX5080 product overviewMAX5080 product overview Maxim TQFN-32
50% MAX5081 MAX5081 product overviewMAX5081 product overview Maxim TQFN-16
50% MAX5096 MAX5096 product overviewMAX5096 product overview Maxim TSSOP-EP-20, TQFN-16
50% MAX5097 MAX5097 product overviewMAX5097 product overview Maxim TSSOP-EP-20, TQFN-16
50% NCV890101 NCV890101 product overviewNCV890101 product overview ON Semiconductor DFN-10
50% NCV890131 NCV890131 product overviewNCV890131 product overview ON Semiconductor DFN-10
50% A5970AD A5970AD product overviewA5970AD product overview ST SO-8
50% A5970D A5970D product overviewA5970D product overview ST SO-8
50% L5970AD L5970AD product overviewL5970AD product overview ST SO-8
50% L5970D L5970D product overviewL5970D product overview ST SO-8
50% LM2672 LM2672 product overviewLM2672 product overview Texas Instruments PDIP-8, SOIC-8, WSON-16

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT1766.

V-IN max. 60 V, I-OUT 1.2 A, V-OUT min. 1.2 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
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
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
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
74437324150 15.0 1.2 2.1 325.00 4.45 x 4.06 x 2
744773112 12.0 1.3 1.6 156.00 4 x 4.5 x 3.5
744773115 15.0 1.2 1.5 204.00 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
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
784773115 15.0 1.2 1.5 204.00 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
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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