LTC3772B Buck Controller overview

Description

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Category
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LTC3772B is a 1 channel, 1 phase non-sync Buck Controller. The maximum input voltage ranges from 2.75 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 LTC3772B is available in 2 package option(s): SOT-23 DFN-8 .

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 1
V-IN min. 2.75 V
V-IN max. 9.80 V
I-OUT? 5.00 A
V-OUT min. 0.60 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 2
CSP
SOT SOT-23
MSOP
QFN/DFN DFN-8
SO/SOIC
SOP
DIP

LTC3772B Datasheet

Link to the most up-to-date LTC3772B datasheet and the product page for EVM, tools and support information.

LTC3772B

LTC3772B inventory, samples and price

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Available Distributors with stock: 1

Chip-One-Stop (1)

ProductStockPriceBuy
LTC3772BETS8#TRMPBF234
15.42 USD
105.21 USD
503.74 USD
1003.69 USD
2003.41 USD
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Available Distributors without stock: 1

DIGI-KEY (0)

ProductStockPriceBuy
LTC3772BETS8#TRPBF0
25002.24 USD
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LTC3772BETS8#TRMPBF0
5002.24 USD
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LTC3772BEDDB#TRMPBF0
5002.25 USD
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LTC3772BEDDB#TRPBF0
25002.25 USD
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Available Distributors with stock: 0

no online Distributor with LTC3772B stock available

Table with equivalents and alternatives

The following Buck Controller are similar to LTC3772B. Or, compare LTC3772B side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
25% LTC1622 LTC1622 product overviewLTC1622 product overview Linear Technology MS-10
25% LTC1772B LTC1772B product overviewLTC1772B product overview Linear Technology SOT-23
25% 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 LTC3772B.

V-IN max. 9.8 V, I-OUT 5 A, V-OUT min. 0.6 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
7440710082 0.8 7.3 8.0 7.00 8 x 8 x 4.6
744310095 1.0 11.0 13.0 6.20 7 x 6.9 x 3.3
744314076 0.8 15.5 15.0 2.25 7 x 6.9 x 5
744316068 0.7 12.8 13.5 4.00 5.5 x 5.3 x 4.3
744373240056 0.6 6.0 10.5 13.50 4.45 x 4.06 x 2
744373240068 0.7 5.5 10.0 16.00 4.45 x 4.06 x 2
744373340068 0.7 6.2 14.0 11.00 5.7 x 5.2 x 2
744373360068 0.7 8.0 15.0 10.00 5.7 x 5.2 x 3
744383560056 0.6 8.5 10.8 7.00 4.1 x 4.1 x 2.1
744383560068 0.7 8.2 9.4 7.50 4.1 x 4.1 x 2.1
744778005 0.5 5.6 9.0 7.20 7.3 x 7.3 x 3.4
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