R1223N-18-B Buck Controller overview

Description

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Category
DC/DC PWM Controller
Sub-Category
PWM Buck

R1223N-18-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-18-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. 1.80 V
V-OUT max. 1.80 V
V-OUT 2
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-18-B Datasheet

Link to the most up-to-date R1223N-18-B datasheet and the product page for EVM, tools and support information.

R1223N-18-B

R1223N-18-B inventory, samples and price

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Available Distributors with stock: 2

Chip-One-Stop (2)

ProductStockPriceBuy
R1223N182H-TR-FE41
11.55 USD
100.68 USD
Buy Now
R1223N332H-TR-FE100
11.55 USD
100.68 USD
500.66 USD
1000.61 USD
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Mouser-Electronics (1)

ProductStockPriceBuy
R1223NNoneBuy Now
R1223N332H-TR-FE50
10.98 USD
100.77 USD
1000.58 USD
5000.49 USD
10000.40 USD
30000.35 USD
90000.31 USD
Buy Now
R1223N332F-TR-FENone
30000.35 USD
90000.31 USD
Buy Now
R1223N332E-TR-FENone
30000.35 USD
90000.31 USD
Buy Now
R1223N152H-TR-FENone
30000.35 USD
90000.31 USD
Buy Now
R1223N182B-TR-FENone
30000.35 USD
90000.31 USD
Buy Now
R1223N252A-TR-FENone
30000.35 USD
90000.31 USD
Buy Now
R1223N502A-TR-FENone
30000.35 USD
90000.31 USD
Buy Now
R1223N332A-TR-FENone
30000.35 USD
90000.31 USD
Buy Now
R1223N152F-TR-FENone
30000.35 USD
90000.31 USD
Buy Now
R1223N332G-TR-FENone
30000.35 USD
90000.31 USD
Buy Now
R1223N182H-TR-FENone
30000.35 USD
90000.31 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with R1223N stock available

Table with equivalents and alternatives

The following Buck Controller are similar to R1223N-18-B. Or, compare R1223N-18-B side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
0% R1223N-18-A R1223N-18-A product overviewR1223N-18-A product overview Ricoh SOT23-5
0% R1225N-18-A R1225N-18-A product overviewR1225N-18-A product overview Ricoh SOT23-5
0% R1225N-18-B R1225N-18-B product overviewR1225N-18-B product overview Ricoh SOT23-5
0% R1225N-18-J R1225N-18-J product overviewR1225N-18-J product overview Ricoh SOT23-5
0% R1223N-1.8A R1223N-1.8A product overviewR1223N-1.8A product overview Ricoh SOT23-5
0% R1223N-1.8B R1223N-1.8B product overviewR1223N-1.8B product overview Ricoh SOT23-5
0% R1224N-E-1.8 R1224N-E-1.8 product overviewR1224N-E-1.8 product overview Ricoh SOT23-5
0% R1224N-F-1.8 R1224N-F-1.8 product overviewR1224N-F-1.8 product overview Ricoh SOT23-5
0% R1224N-L-1.8 R1224N-L-1.8 product overviewR1224N-L-1.8 product overview Ricoh SOT23-5

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of R1223N-18-B.

V-IN max. 13.2 V, I-OUT 1 A, V-OUT min. 1.8 V, Frequency typ. 500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025006 6.8 1.1 1.3 142.00 2.8 x 2.8 x 3
74404042068 6.8 1.5 1.8 98.00 4 x 4 x 1.8
74404042100 10.0 1.2 1.5 150.00 4 x 4 x 1.8
74404052068 6.8 1.9 2.4 82.70 5 x 5 x 2
74404052075 7.5 1.7 2.1 96.80 5 x 5 x 2
74404052100 10.0 1.6 2.0 109.00 5 x 5 x 2
74404063100 10.0 2.0 2.2 72.00 6 x 6 x 2.8
744042006 6.8 1.5 1.3 80.00 4.8 x 4.8 x 2
744043006 6.8 1.3 1.3 80.00 4.8 x 4.8 x 3
744045006 6.8 1.1 1.6 160.00 4.5 x 3.2 x 2.9
744045008 8.2 1.0 1.6 200.00 4.5 x 3.2 x 2.9
744052007 7.5 1.4 1.5 70.00 5.8 x 5.8 x 2
744052009 9.0 1.3 1.4 90.00 5.8 x 5.8 x 2
744052100 10.0 1.1 1.3 105.00 5.8 x 5.8 x 2
744053008 8.2 2.1 1.6 50.00 5.8 x 5.8 x 3
744053100 10.0 1.5 1.4 60.00 5.8 x 5.8 x 3
744062007 7.5 1.7 1.6 50.00 6.8 x 6.8 x 2.5
744062100 10.0 1.6 1.4 53.00 6.8 x 6.8 x 2.5
7440680068 6.8 1.4 1.2 127.00 8 x 8 x 1.2
7440690068 6.8 1.8 1.7 88.00 8 x 8 x 1.5
7440690082 8.2 1.7 1.5 99.00 8 x 8 x 1.5
7440690100 10.0 1.6 1.3 112.00 8 x 8 x 1.5
7440700068 6.8 2.4 1.8 56.00 8 x 8 x 2
7440700082 8.2 2.2 1.7 70.50 8 x 8 x 2
7440700100 10.0 2.0 1.6 78.00 8 x 8 x 2
74408941068 6.8 1.1 2.1 190.00 4.8 x 4.8 x 2.1
74408941078 7.8 1.1 1.9 230.00 4.8 x 4.8 x 2.1
74408942068 6.8 1.5 2.4 110.00 4.8 x 4.8 x 3.1
74408942082 8.2 1.4 2.2 113.00 4.8 x 4.8 x 3.1
74408942100 10.0 1.4 2.1 125.00 4.8 x 4.8 x 3.1
74408943082 8.2 1.8 2.2 70.00 4.8 x 4.8 x 4.1
74408943100 10.0 1.7 2.1 82.00 4.8 x 4.8 x 4.1
74437321068 6.8 1.3 2.4 300.00 4.45 x 4.06 x 1.2
74437321082 8.2 1.2 2.1 313.00 4.45 x 4.06 x 1.2
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
74438335068 6.8 1.1 2.4 250.00 3 x 3 x 1.5
74438336100 10.0 1.2 2.4 280.00 3 x 3 x 2
744773068 6.8 1.5 2.1 76.00 4 x 4.5 x 3.5
744773082 8.2 1.5 1.8 116.00 4 x 4.5 x 3.5
74477310 10.0 1.5 1.7 118.00 4 x 4.5 x 3.5
74477810 10.0 1.8 2.2 68.00 7.3 x 7.3 x 3.4
7447785006 6.8 2.3 2.0 79.00 5.9 x 6.2 x 3.3
744778510 10.0 1.9 1.6 100.00 5.9 x 6.2 x 3.3
7447786006 6.8 2.5 2.3 62.00 5.9 x 6.2 x 5.1
7447786008 8.2 2.3 2.1 66.00 5.9 x 6.2 x 5.1
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
744779100 10.0 1.9 2.1 38.60 6 x 6 x 6.5
78438335068 6.8 1.1 2.4 250.00 3 x 3 x 1.5
784773068 6.8 1.5 2.1 76.00 4 x 4.5 x 3.5
784773082 8.2 1.5 1.8 116.00 4 x 4.5 x 3.5
78477310 10.0 1.5 1.7 118.00 4 x 4.5 x 3.5
784778082 8.2 2.2 2.4 86.00 7.3 x 7.3 x 3.5
784778100 10.0 1.9 2.2 105.00 7.3 x 7.3 x 3.5
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