R1225N-35-J Buck Controller overview

Description

Manufacturer
 
Category
Sub-Category

R1225N-35-J 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 180 kHz switching frequency which results in a typical inductor size of 27.0 uH and a peak efficiency of 94 %. The R1225N-35-J is available in 1 package option(s): SOT23-5 .

Parameter and features overview

ParameterValueReplacement
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Nr. of Channel 1
V-IN min. 2.30 V
V-IN max. 18.50 V
I-OUT? 2.00 A
V-OUT min. 3.50 V
V-OUT max. 3.50 V
V-OUT 4
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 180 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. 27.0 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-35-J Datasheet

Link to the most up-to-date R1225N-35-J datasheet and the product page for EVM, tools and support information.

R1225N-35-J

R1225N-35-J inventory, samples and price

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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-35-J. Or, compare R1225N-35-J side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
0% R1224N-35-E R1224N-35-E product overviewR1224N-35-E product overview Ricoh SOT23-5
0% R1224N-35-F R1224N-35-F product overviewR1224N-35-F product overview Ricoh SOT23-5
0% R1224N-35-L R1224N-35-L product overviewR1224N-35-L product overview Ricoh SOT23-5
0% R1225N-35-A R1225N-35-A product overviewR1225N-35-A product overview Ricoh SOT23-5
0% R1225N-35-B R1225N-35-B product overviewR1225N-35-B product overview Ricoh SOT23-5

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of R1225N-35-J.

V-IN max. 18.5 V, I-OUT 2 A, V-OUT min. 3.5 V, Frequency typ. 180 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404064150 15.0 2.1 2.7 68.00 6 x 6 x 4.5
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
74404084220 22.0 2.1 2.6 69.00 8 x 8 x 4.2
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
7447471220 22.0 3.7 3.0 38.00 10.5 x 10.5 x 11.5
744770127 27.0 3.7 3.8 35.00 12 x 12 x 8
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
744771122 22.0 3.4 3.8 31.00 12 x 12 x 6
744771127 27.0 3.0 3.6 40.00 12 x 12 x 6
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
7447714220 22.0 3.0 3.6 42.00 10 x 10 x 5
7447715180 18.0 3.2 3.2 37.00 12 x 12 x 4.5
7447715220 22.0 2.9 3.1 45.00 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
744772200 20.0 2.6 3.5 38.00 7.8 x 7.8 x 10
744772220 22.0 2.3 3.6 51.34 7.8 x 7.8 x 10
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
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
7447798221 22.0 4.7 3.5 33.00 10.2 x 10.2 x 6.4
7447798241 24.0 4.5 3.3 35.00 10.2 x 10.2 x 6.4
7447798271 27.0 4.3 3.1 37.60 10.2 x 10.2 x 6.4
784770220 22.0 4.0 4.7 37.00 12 x 12 x 8.3
784771220 22.0 3.2 3.5 33.50 12 x 12 x 8.3
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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