R1224N-L-5.9 Buck Controller overview

Description

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R1224N-L-5.9 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 1.50 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 90 %. The R1224N-L-5.9 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? 1.50 A
V-OUT min. 5.90 V
V-OUT max. 5.90 V
V-OUT 6
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 yes
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 90 %
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-L-5.9 Datasheet

Link to the most up-to-date R1224N-L-5.9 datasheet and the product page for EVM, tools and support information.

R1224N-L-5.9

R1224N-L-5.9 inventory, samples and price

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Table with equivalents and alternatives

The following Buck Controller are similar to R1224N-L-5.9. Or, compare R1224N-L-5.9 side-by-side with other Buck Controller via the Comparison function.

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Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of R1224N-L-5.9.

V-IN max. 18.5 V, I-OUT 1.5 A, V-OUT min. 5.9 V, Frequency typ. 180 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404084330 33.0 1.8 2.2 97.00 8 x 8 x 4.2
74404084470 47.0 1.6 1.9 136.00 8 x 8 x 4.2
744066330 33.0 2.1 1.8 92.00 10 x 10 x 4.1
744066470 47.0 1.8 1.9 121.00 10 x 10 x 4.1
74437349330 33.0 1.9 3.5 173.00 7.3 x 6.6 x 5
744732470 47.0 1.8 1.9 114.00 9 x 9 x 8
7447471330 33.0 3.6 2.8 50.00 10.5 x 10.5 x 11.5
7447471470 47.0 3.0 2.5 74.00 10.5 x 10.5 x 11.5
744770133 33.0 3.2 3.6 47.00 12 x 12 x 8
744770139 39.0 3.0 3.5 53.00 12 x 12 x 8
744770147 47.0 2.7 3.0 76.00 12 x 12 x 8
744771127 27.0 3.0 3.6 40.00 12 x 12 x 6
744771133 33.0 2.7 3.0 49.00 12 x 12 x 6
744771139 39.0 2.5 2.7 57.00 12 x 12 x 6
744771147 47.0 2.2 2.6 72.00 12 x 12 x 6
7447714330 33.0 2.5 2.9 66.00 10 x 10 x 5
7447714470 47.0 2.2 2.5 82.50 10 x 10 x 5
7447715330 33.0 2.3 2.5 75.00 12 x 12 x 4.5
7447715470 47.0 2.0 2.1 105.00 12 x 12 x 4.5
744772330 33.0 2.0 2.5 52.53 7.8 x 7.8 x 10
744772390 39.0 2.5 2.5 70.00 7.8 x 7.8 x 10
744772470 47.0 2.3 2.5 88.80 7.8 x 7.8 x 10
744776127 27.0 2.0 2.0 62.70 9 x 10 x 5.9
744776133 33.0 1.8 1.9 82.60 9 x 10 x 5.9
744776139 39.0 1.6 1.8 98.30 9 x 10 x 5.9
7447798271 27.0 4.3 3.1 37.60 10.2 x 10.2 x 6.4
784770470 47.0 3.1 3.4 59.00 12 x 12 x 8.3
7847709470 47.0 3.2 3.5 56.00 12 x 12 x 10.3
784771470 47.0 2.3 2.5 64.00 12 x 12 x 8.3
784776127 27.0 2.0 2.0 63.00 9 x 10 x 5.9
784776133 33.0 1.8 1.9 83.00 9 x 10 x 5.9
784776139 39.0 1.6 1.8 98.00 9 x 10 x 5.9
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