LTC1772 Buck Controller overview

Description

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LTC1772 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 LTC1772 is available in 1 package option(s): SOT-23 .

Parameter and features overview

ParameterValueReplacement
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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 yes
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

LTC1772 Datasheet

Link to the most up-to-date LTC1772 datasheet and the product page for EVM, tools and support information.

LTC1772

LTC1772 inventory, samples and price

OEMSecrets.com
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Available Distributors with stock: 0

no online Distributor with LTC1772 stock available

Available Distributors with stock: 0

no online Distributor with LTC1772 stock available

Table with equivalents and alternatives

The following Buck Controller are similar to LTC1772. Or, compare LTC1772 side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
0% LTC3772 LTC3772 product overviewLTC3772 product overview Linear Technology SOT-23, DFN-8
0% LTC3801 LTC3801 product overviewLTC3801 product overview Linear Technology SOT-23

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC1772.

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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