R1224N-33-L Buck Controller overview

Description

Manufacturer
 
Category
Sub-Category

R1224N-33-L 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 4.00 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 R1224N-33-L 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? 4.00 A
V-OUT min. 3.30 V
V-OUT max. 3.30 V
V-OUT 3
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. 7
current limit adjustable no
Nr.of package options 1
CSP
SOT SOT23-5
MSOP
QFN/DFN
SO/SOIC
SOP
DIP

R1224N-33-L Datasheet

Link to the most up-to-date R1224N-33-L datasheet and the product page for EVM, tools and support information.

R1224N-33-L

R1224N-33-L inventory, samples and price

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Available Distributors with stock: 2

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Table with equivalents and alternatives

The following Buck Controller are similar to R1224N-33-L. Or, compare R1224N-33-L side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
0% R1224N-33-E R1224N-33-E product overviewR1224N-33-E product overview Ricoh SOT23-5
0% R1224N-33-F R1224N-33-F product overviewR1224N-33-F product overview Ricoh SOT23-5

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of R1224N-33-L.

V-IN max. 18.5 V, I-OUT 4 A, V-OUT min. 3.3 V, Frequency typ. 180 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744314760 7.6 4.2 4.8 30.20 7 x 6.9 x 5
7443251000 10.0 7.5 8.5 16.30 10.5 x 10.2 x 5
744325780 7.8 8.0 9.5 13.60 10.5 x 10.2 x 5
7443330820 8.2 11.5 8.0 14.15 10.9 x 10 x 9.7
7443331000 10.0 9.0 8.0 22.75 10.9 x 10 x 9.7
7443341000 10.0 4.4 7.0 38.50 8.4 x 7.9 x 7.5
7443551111 11.3 11.0 9.5 9.10 13.2 x 12.8 x 6.5
7443551131 13.0 10.0 9.0 11.00 13.2 x 12.8 x 6.5
744750230100 10.0 4.6 6.8 18.60 8.8 x 8.8 x 11
744750420100 10.0 6.2 9.6 12.90 12.8 x 12.8 x 9
74477007 7.6 7.4 8.0 16.00 12 x 12 x 8
74477010 10.0 6.2 6.6 19.00 12 x 12 x 8
744770112 12.0 5.9 6.3 21.00 12 x 12 x 8
744771008 8.2 6.3 6.3 14.00 12 x 12 x 6
74477110 10.0 4.1 5.6 21.00 12 x 12 x 6
7447714100 10.0 4.3 5.0 23.00 10 x 10 x 5
744772100 10.0 4.2 5.0 20.30 7.8 x 7.8 x 10
7447797820 8.2 5.1 5.8 25.30 10.2 x 10.2 x 4.5
7447798111 11.0 6.9 5.3 14.00 10.2 x 10.2 x 6.4
7447798720 7.2 7.9 6.0 11.30 10.2 x 10.2 x 6.4
7447798910 9.1 7.4 5.4 12.70 10.2 x 10.2 x 6.4
784770100 10.0 5.0 6.8 26.00 12 x 12 x 8.3
7847709100 10.0 5.0 7.5 25.00 12 x 12 x 10.3
784771082 8.2 5.1 5.5 20.00 12 x 12 x 8.3
784771100 10.0 5.0 5.3 22.00 12 x 12 x 8.3
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