RP504x-1.2 Buck Converter overview



RP504x-1.2 is a 5.50 V sync Buck Converter from with 0.60 A output current. The maximum 5.50 V input voltage can be regulated down into a 1.20 V to 1.20 V output voltage.

It requires are a typical inductor size of 2.20 µH, a typical external component count of 3 and achieves a peak efficiency of 93 %. Further RP504x-1.2 characteristics are a fixed 2250 kHz switching frequency and 3 available package option(s): SOT23-5 DFN-6 .

For the RP504x-1.2 replacement search, please select a main parameter tolerance value and adjust the checkboxes for feature match. The product counter within the button shows the number of available equivalents and a click on the replacement button shows all possible replacements within a parametric overview.

Search Filter
V-IN min. 2.30 V
V-IN max. 5.50 V
I-OUT? 0.60 A
V-OUT min. 1.20 V
V-OUT max. 1.20 V
V-OUT 1.200 V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 2250 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 40 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 2.20 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 93 %
Component count min. 3
current limit adjustable no
Nr.of packages 3

RP504x-1.2 Datasheet

Link to the most up-to-date RP504x-1.2 datasheet and the product page for EVM, tools and support information.


RP504x-1.2 Sample stock and distributor price breaks

RP504x-1.2 prices and online available distributors.


Available Distributors with stock: 0

no online Distributor with RP504x stock available

Available Distributors with stock: 0

no online Distributor with RP504x stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to RP504x-1.2. Optional, compare RP504x-1.2 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% ADP2102-1,2 ADP2102-1,2 product overviewADP2102-1,2 product overview Analog Devices QFN-8
0% ADP2105-1,2 ADP2105-1,2 product overviewADP2105-1,2 product overview Analog Devices QFN-16
0% ADP2108-1,2 ADP2108-1,2 product overviewADP2108-1,2 product overview Analog Devices TSOT23-5, CSP-5
0% ADP2109-1,2 ADP2109-1,2 product overviewADP2109-1,2 product overview Analog Devices CSP-5
0% ADP2138-1,2 ADP2138-1,2 product overviewADP2138-1,2 product overview Analog Devices WLCSP-6
0% ADP2139-1,2 ADP2139-1,2 product overviewADP2139-1,2 product overview Analog Devices WLCSP-6
0% MAX8884-1.2 MAX8884-1.2 product overviewMAX8884-1.2 product overview Maxim CSP-16
0% MIC23050-1.2 MIC23050-1.2 product overviewMIC23050-1.2 product overview Micrel MLF-8
0% DC6M601X6-1.2 DC6M601X6-1.2 product overviewDC6M601X6-1.2 product overview NXP CSP-6
0% DC6M603X6-1.2 DC6M603X6-1.2 product overviewDC6M603X6-1.2 product overview NXP CSP-6
0% NCP1529-1.2 NCP1529-1.2 product overviewNCP1529-1.2 product overview ON Semiconductor UDFN-6, SOT-23-5
0% BD90571 BD90571 product overviewBD90571 product overview Rohm HTSOP-J8
0% BU90003 BU90003 product overviewBU90003 product overview Rohm CSP-6
0% LM3671-1.2 LM3671-1.2 product overviewLM3671-1.2 product overview Texas Instruments USON-6, SOT23-5, DSBGA-5
0% LM3671-Q1-1.2 LM3671-Q1-1.2 product overviewLM3671-Q1-1.2 product overview Texas Instruments SOT23-5
0% LM3677-1.2 LM3677-1.2 product overviewLM3677-1.2 product overview Texas Instruments USON-6, DSBGA-5
0% LM3691-1.2 LM3691-1.2 product overviewLM3691-1.2 product overview Texas Instruments DSBGA-6
0% LM8801-1.2 LM8801-1.2 product overviewLM8801-1.2 product overview Texas Instruments DSBGA-6
0% TPS62262 TPS62262 product overviewTPS62262 product overview Texas Instruments SON-6, SOT-5
0% TPS62262-Q1 TPS62262-Q1 product overviewTPS62262-Q1 product overview Texas Instruments SON-6, SOT-5
0% XC9254R XC9254R product overviewXC9254R product overview Torex USP-6, SOT25-5
0% RP508x-1.2 RP508x-1.2 product overviewRP508x-1.2 product overview Ricoh DFN-6
0% RP505K-1.2 RP505K-1.2 product overviewRP505K-1.2 product overview Ricoh DFN-8
0% TS33000-1.2 TS33000-1.2 product overviewTS33000-1.2 product overview Triune Systems QFN-16
0% TS33001-1.2 TS33001-1.2 product overviewTS33001-1.2 product overview Triune Systems QFN-16
0% MP2148-1.2 MP2148-1.2 product overviewMP2148-1.2 product overview MPS QFN-6
0% AS1382A-1.2 AS1382A-1.2 product overviewAS1382A-1.2 product overview AMS WLCSP-6
0% RP509Z-1-1.2 RP509Z-1-1.2 product overviewRP509Z-1-1.2 product overview Ricoh WLCSP-6

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of RP504x-1.2.

V-IN max. 5.5 V, I-OUT 0.6 A, V-OUT min. 1.2 V, Frequency typ. 2250 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744028002 2.2 1.3 1.0 125.00 2.8 x 2.8 x 1.2
744029002 2.2 1.5 1.2 88.00 2.8 x 2.8 x 1.5
744030002 2.2 0.7 0.8 140.00 3.3 x 3.5 x 1.05
744031001 1.5 1.8 1.6 40.00 3.8 x 3.8 x 1.8
744031002 2.5 1.5 1.3 50.00 3.8 x 3.8 x 1.8
74479775215 1.5 1.1 0.8 160.00 2 x 1.2 x 1.2
74479776215 1.5 1.3 0.8 110.00 2 x 1.6 x 1
74479787215A 1.5 1.9 1.1 70.00 2.5 x 2 x 1
74479887222A 2.2 1.4 0.8 140.00 2.5 x 2 x 1
74479888222 2.2 1.2 1.4 200.00 2.5 x 2 x 1
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