R1223N-37-B Buck Controller overview

Description

Manufacturer
 
Category
Sub-Category

R1223N-37-B is a 1 channel, 1 phase non-sync Buck Controller. The maximum input voltage ranges from 2.30 V to 13.20 V and output current goes up to 1.00 A.

The Controller features fixed 500 kHz switching frequency which results in a typical inductor size of 27.0 uH and a peak efficiency of 93 %. The R1223N-37-B 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. 13.20 V
I-OUT? 1.00 A
V-OUT min. 3.70 V
V-OUT max. 3.70 V
V-OUT 4
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 500 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 93 %
component count min. 6
current limit adjustable no
Nr.of package options 1
CSP
SOT SOT23-5
MSOP
QFN/DFN
SO/SOIC
SOP
DIP

R1223N-37-B Datasheet

Link to the most up-to-date R1223N-37-B datasheet and the product page for EVM, tools and support information.

R1223N-37-B

R1223N-37-B inventory, samples and price

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Available Distributors with stock: 0

no online Distributor with R1223N stock available

Available Distributors with stock: 4

Rochester Electronics

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Mouser Electronics

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R1223N332H-TR-FE 4
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R1223N182H-TR-FE 0
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R1223N332E-TR-FE 0
30000.35 $
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show stock=0hide stock=0

TTI

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4308R-101-223 2000
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Table with equivalents and alternatives

The following Buck Controller are similar to R1223N-37-B. Or, compare R1223N-37-B side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
0% R1223N-37-A R1223N-37-A product overviewR1223N-37-A product overview Ricoh SOT23-5
0% R1225N-37-A R1225N-37-A product overviewR1225N-37-A product overview Ricoh SOT23-5
0% R1225N-37-B R1225N-37-B product overviewR1225N-37-B product overview Ricoh SOT23-5
0% R1225N-37-J R1225N-37-J product overviewR1225N-37-J product overview Ricoh SOT23-5
0% R1223N-3.7A R1223N-3.7A product overviewR1223N-3.7A product overview Ricoh SOT23-5
0% R1223N-3.7B R1223N-3.7B product overviewR1223N-3.7B product overview Ricoh SOT23-5
0% R1224N-E-3.7 R1224N-E-3.7 product overviewR1224N-E-3.7 product overview Ricoh SOT23-5
0% R1224N-F-3.7 R1224N-F-3.7 product overviewR1224N-F-3.7 product overview Ricoh SOT23-5
0% R1224N-L-3.7 R1224N-L-3.7 product overviewR1224N-L-3.7 product overview Ricoh SOT23-5

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of R1223N-37-B.

V-IN max. 13.2 V, I-OUT 1 A, V-OUT min. 3.7 V, Frequency typ. 500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404042100 10.0 1.2 1.5 150.00 4 x 4 x 1.8
74404052100 10.0 1.6 2.0 109.00 5 x 5 x 2
74404054150 15.0 2.0 2.2 86.00 5 x 5 x 4
74404063100 10.0 2.0 2.2 72.00 6 x 6 x 2.8
74404063150 15.0 1.5 1.9 125.00 6 x 6 x 2.8
74404064180 18.0 1.9 2.4 81.00 6 x 6 x 4.5
744052100 10.0 1.1 1.3 105.00 5.8 x 5.8 x 2
744053100 10.0 1.5 1.4 60.00 5.8 x 5.8 x 3
744053120 12.0 1.5 1.3 70.00 5.8 x 5.8 x 3
744062100 10.0 1.6 1.4 53.00 6.8 x 6.8 x 2.5
744062120 12.0 1.4 1.3 70.00 6.8 x 6.8 x 2.5
744065150 15.0 2.2 2.3 69.00 10 x 10 x 3.1
7440690100 10.0 1.6 1.3 112.00 8 x 8 x 1.5
7440690120 12.0 1.4 1.2 148.00 8 x 8 x 1.5
7440700100 10.0 2.0 1.6 78.00 8 x 8 x 2
7440700150 15.0 1.7 1.3 117.00 8 x 8 x 2
744071150 15.0 2.8 2.3 46.00 8 x 8 x 4.6
74408942100 10.0 1.4 2.1 125.00 4.8 x 4.8 x 3.1
74408942150 15.0 1.1 1.6 207.00 4.8 x 4.8 x 3.1
74408943100 10.0 1.7 2.1 82.00 4.8 x 4.8 x 4.1
74408943150 15.0 1.4 1.7 118.00 4.8 x 4.8 x 4.1
74437321100 10.0 1.1 2.0 410.00 4.45 x 4.06 x 1.2
74437324100 10.0 1.5 2.4 215.00 4.45 x 4.06 x 2
74437324150 15.0 1.2 2.1 325.00 4.45 x 4.06 x 2
74438336100 10.0 1.2 2.4 280.00 3 x 3 x 2
74477310 10.0 1.5 1.7 118.00 4 x 4.5 x 3.5
744773112 12.0 1.3 1.6 156.00 4 x 4.5 x 3.5
744773115 15.0 1.2 1.5 204.00 4 x 4.5 x 3.5
744773118 18.0 1.1 1.3 225.00 4 x 4.5 x 3.5
744775112 12.0 2.2 2.2 41.70 7 x 7.8 x 5.5
744775115 15.0 1.9 2.2 43.90 7 x 7.8 x 5.5
744775118 18.0 1.9 2.1 52.60 7 x 7.8 x 5.5
744777112 12.0 1.8 2.4 54.00 7.3 x 7.3 x 4.5
744777115 15.0 1.6 2.2 70.00 7.3 x 7.3 x 4.5
744777118 18.0 1.5 2.1 80.00 7.3 x 7.3 x 4.5
7447779112 12.0 1.8 2.4 50.00 7.3 x 7.3 x 4.5
7447779115 15.0 1.6 2.2 70.00 7.3 x 7.3 x 4.5
7447779118 18.0 1.5 2.1 80.00 7.3 x 7.3 x 4.5
74477810 10.0 1.8 2.2 68.00 7.3 x 7.3 x 3.4
744778112 12.0 1.7 2.2 76.00 7.3 x 7.3 x 3.4
744778115 15.0 1.5 1.8 100.00 7.3 x 7.3 x 3.4
744778118 18.0 1.4 1.7 114.00 7.3 x 7.3 x 3.4
744778510 10.0 1.9 1.6 100.00 5.9 x 6.2 x 3.3
7447785115 15.0 1.6 1.4 165.00 5.9 x 6.2 x 3.3
744778610 10.0 2.1 1.8 74.00 5.9 x 6.2 x 5.1
744778910 10.0 1.8 2.2 64.00 7.3 x 7.3 x 3.5
7447789112 12.0 1.7 1.9 76.00 7.3 x 7.3 x 3.5
7447789115 15.0 1.5 1.8 100.00 7.3 x 7.3 x 3.5
7447789118 18.0 1.4 1.7 114.00 7.3 x 7.3 x 3.5
744779100 10.0 1.9 2.1 38.60 6 x 6 x 6.5
744787120 12.0 2.5 2.4 45.00 7.8 x 7 x 5
744787150 15.0 2.3 2.1 52.00 7.8 x 7 x 5
744787180 18.0 2.2 1.9 67.00 7.8 x 7 x 5
78477310 10.0 1.5 1.7 118.00 4 x 4.5 x 3.5
784773112 12.0 1.3 1.6 156.00 4 x 4.5 x 3.5
784773115 15.0 1.2 1.5 204.00 4 x 4.5 x 3.5
784773118 18.0 1.1 1.3 225.00 4 x 4.5 x 3.5
784774112 12.0 2.0 1.9 82.00 5.2 x 5.8 x 4.85
784774115 15.0 1.5 1.9 89.00 5.2 x 5.8 x 4.85
784774118 18.0 1.5 1.7 104.00 5.2 x 5.8 x 4.85
784775112 12.0 2.2 2.2 42.00 7 x 7.8 x 5.5
784775115 15.0 1.9 2.2 44.00 7 x 7.8 x 5.5
784775118 18.0 1.9 2.1 53.00 7 x 7.8 x 5.5
784778100 10.0 1.9 2.2 105.00 7.3 x 7.3 x 3.5
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