R1225N-41-A Buck Controller overview

Description

Manufacturer
 
Category
Sub-Category

R1225N-41-A is a 1 channel, 1 phase non-sync Buck Controller. The maximum input voltage ranges from 2.30 V to 18.50 V and output current goes up to 2.00 A.

The Controller features fixed 300 kHz switching frequency which results in a typical inductor size of 10.0 uH and a peak efficiency of 94 %. The R1225N-41-A is available in 1 package option(s): SOT23-5 .

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 1
V-IN min. 2.30 V
V-IN max. 18.50 V
I-OUT? 2.00 A
V-OUT min. 4.10 V
V-OUT max. 4.10 V
V-OUT 4
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 300 kHz
Frequency adj. fixed
Frequency adj. min.
Frequency adj. max.
ext.clock sync. no
ext.clock Frequency min.
ext.clock Frequency max.
Softstart yes
Softstart adjustable no
Tracking no
Power Good (PG) no
Enable no
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 10.0 uH
Automotive AEC-Q100 no
Light-Load Mode yes
Single/ Multiphase single
Nr. of Phases 1
Peak Efficiency 94 %
component count min. 8
current limit adjustable no
Nr.of package options 1
CSP
SOT SOT23-5
MSOP
QFN/DFN
SO/SOIC
SOP
DIP

R1225N-41-A Datasheet

Link to the most up-to-date R1225N-41-A datasheet and the product page for EVM, tools and support information.

R1225N-41-A

R1225N-41-A inventory, samples and price

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Available Distributors with stock: 0

no online Distributor with R1225N stock available

Available Distributors with stock: 0

no online Distributor with R1225N stock available

Table with equivalents and alternatives

The following Buck Controller are similar to R1225N-41-A. Or, compare R1225N-41-A side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
0% R1224N-41-E R1224N-41-E product overviewR1224N-41-E product overview Ricoh SOT23-5
0% R1224N-41-F R1224N-41-F product overviewR1224N-41-F product overview Ricoh SOT23-5
0% R1224N-41-L R1224N-41-L product overviewR1224N-41-L product overview Ricoh SOT23-5
0% R1225N-41-B R1225N-41-B product overviewR1225N-41-B product overview Ricoh SOT23-5
0% R1225N-41-J R1225N-41-J product overviewR1225N-41-J product overview Ricoh SOT23-5

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of R1225N-41-A.

V-IN max. 18.5 V, I-OUT 2 A, V-OUT min. 4.1 V, Frequency typ. 300 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404054100 10.0 2.1 2.5 64.00 5 x 5 x 4
74404064100 10.0 2.5 3.5 48.00 6 x 6 x 4.5
74404064120 12.0 2.2 3.0 58.00 6 x 6 x 4.5
74404064150 15.0 2.1 2.7 68.00 6 x 6 x 4.5
74404084100 10.0 3.3 4.6 29.00 8 x 8 x 4.2
74404084120 12.0 2.8 3.8 40.00 8 x 8 x 4.2
74404084150 15.0 2.6 3.2 47.00 8 x 8 x 4.2
74404084180 18.0 2.4 2.9 53.00 8 x 8 x 4.2
744065100 10.0 3.0 2.5 40.00 10 x 10 x 3.1
744066100 10.0 3.6 4.0 25.00 10 x 10 x 4.1
744066150 15.0 3.2 3.3 37.00 10 x 10 x 4.1
744066180 18.0 2.8 3.0 54.00 10 x 10 x 4.1
744071100 10.0 3.4 2.8 28.00 8 x 8 x 4.6
744314101 10.0 3.5 4.0 33.00 7 x 6.9 x 5
74437336100 10.0 2.2 4.2 110.00 5.7 x 5.2 x 3
744732100 10.0 4.0 4.0 27.00 9 x 9 x 8
7447452100 10.0 4.7 4.5 15.00 9 x 9 x 13.5
7447462100 10.0 2.5 2.6 55.00 5.5 x 5.5 x 8.5
7447471100 10.0 5.1 4.2 17.50 10.5 x 10.5 x 11.5
744771115 15.0 3.8 4.6 25.00 12 x 12 x 6
744771118 18.0 3.5 4.3 29.00 12 x 12 x 6
7447713100 10.0 2.6 4.1 51.50 10 x 10 x 3
7447713150 15.0 2.2 3.4 74.00 10 x 10 x 3
7447714150 15.0 3.5 4.1 36.00 10 x 10 x 5
7447715100 10.0 3.8 4.2 25.00 12 x 12 x 4.5
7447715120 12.0 3.5 3.6 30.00 12 x 12 x 4.5
7447715180 18.0 3.2 3.2 37.00 12 x 12 x 4.5
7447720150 15.0 2.4 3.0 33.40 7.8 x 7.8 x 10
7447720180 18.0 3.1 3.5 41.00 7.8 x 7.8 x 10
74477510 10.0 2.3 3.0 40.00 7 x 7.8 x 5.5
74477610 10.0 3.0 3.2 27.50 9 x 10 x 5.9
744776112 12.0 2.7 3.2 32.60 9 x 10 x 5.9
744776115 15.0 2.5 2.9 34.00 9 x 10 x 5.9
744776118 18.0 2.4 2.4 42.80 9 x 10 x 5.9
74477710 10.0 2.0 2.6 45.00 7.3 x 7.3 x 4.5
744777910 10.0 2.0 2.6 45.00 7.3 x 7.3 x 4.5
7447798131 13.0 5.9 4.5 19.90 10.2 x 10.2 x 6.4
7447798151 15.0 5.5 4.0 21.80 10.2 x 10.2 x 6.4
7447798181 18.0 5.0 3.8 30.50 10.2 x 10.2 x 6.4
744787100 10.0 2.6 2.6 36.50 7.8 x 7 x 5
744787120 12.0 2.5 2.4 45.00 7.8 x 7 x 5
78477410 10.0 2.2 2.5 78.00 5.2 x 5.8 x 4.85
78477510 10.0 2.3 3.0 40.00 7 x 7.8 x 5.5
78477610 10.0 3.0 3.2 28.00 9 x 10 x 5.9
784776112 12.0 2.7 3.2 33.00 9 x 10 x 5.9
784776115 15.0 2.5 2.9 34.00 9 x 10 x 5.9
784776118 18.0 2.4 2.4 43.00 9 x 10 x 5.9
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