LTC3703 Buck Controller overview

Description

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LTC3703 is a 1 channel, 1 phase sync Buck Controller. The maximum input voltage ranges from 9.30 V to 100.00 V and output current goes up to 20.00 A.

The Controller features adjustable 600 kHz switching frequency which results in a typical inductor size of 0.0 uH and a peak efficiency of %. The LTC3703 is available in 2 package option(s): SSOP-16 .

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 1
V-IN min. 9.30 V
V-IN max. 100.00 V
I-OUT? 20.00 A
V-OUT min. 0.80 V
V-OUT max. 93.00 V
V-OUT adjustable
V-OUT programmable
sync/non-sync sync
Frequency typ. 600 kHz
Frequency adj. adjustable
Frequency adj. min. 100 kHz
Frequency adj. max. 600 kHz
ext.clock sync. yes
ext.clock Frequency min.
ext.clock Frequency max. 600 kHz
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
MSOP
QFN/DFN
SO/SOIC
SOP SSOP-16
DIP

LTC3703 Datasheet

Link to the most up-to-date LTC3703 datasheet and the product page for EVM, tools and support information.

LTC3703

LTC3703 inventory, samples and price

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Available Distributors with stock: 0

no online Distributor with LTC3703 stock available

Available Distributors with stock: 0

no online Distributor with LTC3703 stock available

Table with equivalents and alternatives

The following Buck Controller are similar to LTC3703. Or, compare LTC3703 side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
50% LTC3703-5 LTC3703-5 product overviewLTC3703-5 product overview Linear Technology SSOP-16
50% LTC3810 LTC3810 product overviewLTC3810 product overview Linear Technology SSOP-28
50% LTC3810-5 LTC3810-5 product overviewLTC3810-5 product overview Linear Technology QFN-32
50% LTC3812-5 LTC3812-5 product overviewLTC3812-5 product overview Linear Technology TSSOP-16

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3703.

V-IN max. 100 V, I-OUT 20 A, V-OUT min. 0.8 V, Frequency typ. 600 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744303022 0.2 31.0 32.0 0.33 10 x 6.8 x 5
744304016 0.2 26.0 32.0 0.17 11.5 x 11.8 x 4
744305022 0.2 28.0 42.0 0.16 13.5 x 13.3 x 5.2
744306020 0.2 26.0 36.0 0.30 10.5 x 10.3 x 5.5
744306025 0.3 26.0 32.0 0.30 10.5 x 10.3 x 5.5
744307016 0.2 29.0 41.0 0.33 7.4 x 7.2 x 7.2
744307022 0.2 29.0 29.0 0.33 7.4 x 7.2 x 7.2
744308020 0.2 27.0 48.0 0.37 10.1 x 7 x 7
744308025 0.3 27.0 44.0 0.37 10.1 x 7 x 7
7443081022 0.2 38.0 45.0 0.29 9.4 x 6.2 x 8.1
744311022 0.2 21.0 32.0 1.10 7 x 6.9 x 4
744314024 0.2 20.0 28.0 1.00 7 x 6.9 x 5
744316022 0.2 20.0 25.0 1.25 5.5 x 5.3 x 4.3
744323020 0.2 22.0 50.0 0.82 10.6 x 10.6 x 3.1
744373560022 0.2 20.0 40.0 1.47 8.64 x 8.5 x 3
744373770022 0.2 25.0 40.0 0.75 13.5 x 12.6 x 3.5
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