LTC3620 Buck Converter overview



LTC3620 is a 5.50 V sync Buck Converter from with 0.02 A output current. The maximum 5.50 V input voltage can be regulated down into a 0.60 V to 5.50 V output voltage.

It requires are a typical inductor size of 22.00 µH, a typical external component count of 6 and achieves a peak efficiency of 95 %. Further LTC3620 characteristics are a adjustable 150 kHz switching frequency and 1 available package option(s): DFN-8 .

For the LTC3620 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.

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V-IN min. 2.90 V
V-IN max. 5.50 V
I-OUT? 0.02 A
V-OUT min. 0.60 V
V-OUT max. 5.50 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 150 kHz
Frequency adjustable
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min. 20 kHz
Frequency adj./ ext.clock max 300 kHz
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 25 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 22.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 95 %
Component count min. 6
current limit adjustable no
Nr.of packages 1

LTC3620 Datasheet

Link to the most up-to-date LTC3620 datasheet and the product page for EVM, tools and support information.


LTC3620 Sample stock and distributor price breaks

LTC3620 prices and online available distributors.

Available Distributors with stock: 0

no online Distributor with LTC3620 stock available

Available Distributors with stock: 0

no online Distributor with LTC3620 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to LTC3620. Optional, compare LTC3620 side-by-side with other Buck Converter via the Comparison function.

no alternatives found

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3620.

V-IN max. 5.5 V, I-OUT 0.015 A, V-OUT min. 0.6 V, Frequency typ. 150 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744043102 1,000.0 0.1 0.1 5,400.00 4.8 x 4.8 x 3
744045102 1,000.0 0.1 0.2 24,000.00 4.5 x 3.2 x 2.9
744045821 820.0 0.1 0.2 16,000.00 4.5 x 3.2 x 2.9
744062102 1,000.0 0.2 0.1 3,820.00 6.8 x 6.8 x 2.5
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