LTC1772B Buck Controller overview

Description

Manufacturer
 
Category
Sub-Category

LTC1772B is a 1 channel, 1 phase non-sync Buck Controller. The maximum input voltage ranges from 2.50 V to 9.80 V and output current goes up to 5.00 A.

The Controller features fixed 550 kHz switching frequency which results in a typical inductor size of 0.0 uH and a peak efficiency of %. The LTC1772B is available in 1 package option(s): SOT-23 .

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 1
V-IN min. 2.50 V
V-IN max. 9.80 V
I-OUT? 5.00 A
V-OUT min. 0.80 V
V-OUT max. 9.80 V
V-OUT adjustable
V-OUT programmable
sync/non-sync non-sync
Frequency typ. 550 kHz
Frequency adj. fixed
Frequency adj. min.
Frequency adj. max.
ext.clock sync. no
ext.clock Frequency min.
ext.clock Frequency max.
Softstart
Softstart adjustable
Tracking no
Power Good (PG)
Enable
Operating min.
Operating max.
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ.
Automotive AEC-Q100
Light-Load Mode
Single/ Multiphase single
Nr. of Phases 1
Peak Efficiency
component count min.
current limit adjustable
Nr.of package options 1
CSP
SOT SOT-23
MSOP
QFN/DFN
SO/SOIC
SOP
DIP

LTC1772B Datasheet

Link to the most up-to-date LTC1772B datasheet and the product page for EVM, tools and support information.

LTC1772B

LTC1772B inventory, samples and price

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Available Distributors with stock: 4

ARROW-NAC (1)

ProductStockPriceBuy
LTC1772BES6#TRMPBF144
12.33 USD
1002.04 USD
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Chip-One-Stop (1)

ProductStockPriceBuy
LTC1772BES6#TRMPBF324
14.66 USD
104.48 USD
503.21 USD
1003.16 USD
2002.92 USD
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DIGI-KEY (4)

ProductStockPriceBuy
LTC1772BIS6#TRMPBF0
5002.62 USD
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LTC1772BIS6#TRMPBF475
15.15 USD
254.60 USD
1003.14 USD
2502.88 USD
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LTC1772BIS6#TRMPBF475
15.15 USD
254.60 USD
1003.14 USD
2502.88 USD
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LTC1772BES6#TRMPBF0
5002.05 USD
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LTC1772BES6#TRMPBF7
14.59 USD
254.10 USD
1002.45 USD
2502.24 USD
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LTC1772BES6#TRMPBF7
14.59 USD
254.10 USD
1002.45 USD
2502.24 USD
Buy Now
LTC1772BES6#TRPBF0
25002.04 USD
Buy Now
LTC1772BIS6#TRPBF0
25002.62 USD
Buy Now

NEWARK (1)

ProductStockPriceBuy
LTC1772BES6#PBF65
12.13 USD
Buy Now
LTC1772BIS6#PBF0
14.56 USD
253.10 USD
1002.62 USD
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Available Distributors with stock: 0

no online Distributor with LTC1772B stock available

Table with equivalents and alternatives

The following Buck Controller are similar to LTC1772B. Or, compare LTC1772B side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
0% LTC1622 LTC1622 product overviewLTC1622 product overview Linear Technology MS-10
0% LTC3772B LTC3772B product overviewLTC3772B product overview Linear Technology SOT-23, DFN-8
0% LTC3801B LTC3801B product overviewLTC3801B product overview Linear Technology SOT-23

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC1772B.

V-IN max. 9.8 V, I-OUT 5 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)
744040630082 0.8 6.0 9.5 10.00 6 x 6 x 2.8
74404063010 1.0 5.2 7.5 10.00 6 x 6 x 2.8
74404064010 1.0 5.1 11.0 11.00 6 x 6 x 4.5
744065001 1.0 8.0 9.5 4.90 10 x 10 x 3.1
7440710082 0.8 7.3 8.0 7.00 8 x 8 x 4.6
744316100 1.0 11.5 11.5 4.75 5.5 x 5.3 x 4.3
744373240068 0.7 5.5 10.0 16.00 4.45 x 4.06 x 2
74437324010 1.0 5.0 9.0 22.00 4.45 x 4.06 x 2
74437336010 1.0 7.5 11.0 13.00 5.7 x 5.2 x 3
744383560068 0.7 8.2 9.4 7.50 4.1 x 4.1 x 2.1
74438356010 1.0 7.2 9.0 12.00 4.1 x 4.1 x 2.1
7447462010 1.0 8.5 8.0 6.00 5.5 x 5.5 x 8.5
744772010 1.0 7.5 10.0 4.70 7.8 x 7.8 x 10
744777001 1.0 6.8 10.2 8.40 7.3 x 7.3 x 4.5
7447779001 1.0 5.3 9.5 10.00 7.3 x 7.3 x 4.5
744778001 1.0 5.4 6.4 9.00 7.3 x 7.3 x 3.4
7447789001 1.0 5.4 6.4 10.00 7.3 x 7.3 x 3.5
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