RP504x-3.3 Buck Converter overview



RP504x-3.3 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 3.30 V to 3.30 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-3.3 characteristics are a fixed 2250 kHz switching frequency and 3 available package option(s): SOT23-5 DFN-6 .

For the RP504x-3.3 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. 3.30 V
V-OUT max. 3.30 V
V-OUT 3.300 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-3.3 Datasheet

Link to the most up-to-date RP504x-3.3 datasheet and the product page for EVM, tools and support information.


RP504x-3.3 Sample stock and distributor price breaks

RP504x-3.3 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-3.3. Optional, compare RP504x-3.3 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% ADP2105-3,3 ADP2105-3,3 product overviewADP2105-3,3 product overview Analog Devices QFN-16
0% ADP2108-3,3 ADP2108-3,3 product overviewADP2108-3,3 product overview Analog Devices TSOT23-5, CSP-5
0% ADP2138-3,3 ADP2138-3,3 product overviewADP2138-3,3 product overview Analog Devices WLCSP-6
0% ADP2139-3,3 ADP2139-3,3 product overviewADP2139-3,3 product overview Analog Devices WLCSP-6
0% FAN53600-3.3 FAN53600-3.3 product overviewFAN53600-3.3 product overview Fairchild CSP-6
0% MAX1556-3.3 MAX1556-3.3 product overviewMAX1556-3.3 product overview Maxim TDFN-EP-10
0% MAX16903-3.3 MAX16903-3.3 product overviewMAX16903-3.3 product overview Maxim TSSOP-EP-16, TDFN-EP-10
0% MAX16904-3.3 MAX16904-3.3 product overviewMAX16904-3.3 product overview Maxim TSSOP-EP-16, TDFN-EP-10
0% MAX17502-3.3 MAX17502-3.3 product overviewMAX17502-3.3 product overview Maxim TSSOP-EP-14, TDFN-10
0% MIC23050-3.3 MIC23050-3.3 product overviewMIC23050-3.3 product overview Micrel MLF-8
0% BD9104 BD9104 product overviewBD9104 product overview Rohm MSOP-8
0% BD9109 BD9109 product overviewBD9109 product overview Rohm MSOP-8
0% BU90002 BU90002 product overviewBU90002 product overview Rohm CSP-6
0% AAT1151-3.3 AAT1151-3.3 product overviewAAT1151-3.3 product overview Skyworks QFN-16, MSOP-8
0% AAT1157-3.3 AAT1157-3.3 product overviewAAT1157-3.3 product overview Skyworks QFN-16
0% LM3671-3.3 LM3671-3.3 product overviewLM3671-3.3 product overview Texas Instruments SOT23-5, DSBGA-5
0% LM3676-3.3 LM3676-3.3 product overviewLM3676-3.3 product overview Texas Instruments WSON-8
0% LM3691-3.3 LM3691-3.3 product overviewLM3691-3.3 product overview Texas Instruments DSBGA-6
0% TPS62026 TPS62026 product overviewTPS62026 product overview Texas Instruments QFN-10, MSOP
0% TPS62046 TPS62046 product overviewTPS62046 product overview Texas Instruments QFN-10, MSOP
0% TPS62162 TPS62162 product overviewTPS62162 product overview Texas Instruments SON-8
0% TPS62291 TPS62291 product overviewTPS62291 product overview Texas Instruments SON-6, SOT-5
0% FAN53600-3.3 FAN53600-3.3 product overviewFAN53600-3.3 product overview Fairchild CSP-6
0% RP508x-3.3 RP508x-3.3 product overviewRP508x-3.3 product overview Ricoh DFN-6
0% RP505K-3.3 RP505K-3.3 product overviewRP505K-3.3 product overview Ricoh DFN-8
0% TS30111-3.3 TS30111-3.3 product overviewTS30111-3.3 product overview Triune Systems QFN-16
0% TS30011-3.3 TS30011-3.3 product overviewTS30011-3.3 product overview Triune Systems QFN-16
0% TS33000-3.3 TS33000-3.3 product overviewTS33000-3.3 product overview Triune Systems QFN-16
0% TS33001-3.3 TS33001-3.3 product overviewTS33001-3.3 product overview Triune Systems QFN-16
0% TS30021-3.3 TS30021-3.3 product overviewTS30021-3.3 product overview Triune Systems QFN-16
0% MP2148-3.3 MP2148-3.3 product overviewMP2148-3.3 product overview MPS QFN-6
0% RP509Z-1-3.3 RP509Z-1-3.3 product overviewRP509Z-1-3.3 product overview Ricoh WLCSP-6

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of RP504x-3.3.

V-IN max. 5.5 V, I-OUT 0.6 A, V-OUT min. 3.3 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
744031002 2.5 1.5 1.3 50.00 3.8 x 3.8 x 1.8
7440320027 2.7 0.6 1.6 144.00 3.2 x 2.5 x 2.3
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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