RP509Z-2-2.5 Buck Converter overview
Description
RP509Z-2-2.5 is a 5.50 V sync Buck Converter from with 0.50 A output current. The maximum 5.50 V input voltage can be regulated down into a 2.50 V to 2.50 V output voltage.
It requires are a typical inductor size of 0.47 µH, a typical external component count of 3 and achieves a peak efficiency of 97 %. Further RP509Z-2-2.5 characteristics are a fixed 6000 kHz switching frequency and 1 available package option(s): WLCSP-6 .
Parameter overview and features with replacement search
For the RP509Z-2-2.5 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.
Parameter | Value | Replacement Search Filter |
V-IN min. | 2.30 V | |
V-IN max. | 5.50 V | |
I-OUT? | 0.50 A | |
V-OUT min. | 2.50 V | |
V-OUT max. | 2.50 V | |
V-OUT | 2.500 V | |
V-OUT programmable | ![]() |
|
sync/non-sync | sync | |
Frequency typ. | 6000 kHz | |
Frequency | fixed | |
Frequency selectable | ||
ext.clock sync. | ![]() |
|
Frequency adj./ ext.clock min. | ||
Frequency adj./ ext.clock max | ||
Softstart | ![]() |
|
Softstart adjustable | ![]() |
|
Tracking | ![]() |
|
PG/Power OK | ![]() |
|
Quiescent current max. | -15 µA | |
Operating min. | -40 °C | |
Operating max. | 85 °C | |
Junction min. | -40 °C | |
Junction max. | 125 °C | |
thermal shutdown typ. | 140 °C | |
Inductor size typ. | 0.47 µH | |
Inductor suggested by Würth Elektronik | ||
Automotive AEC-Q100 | ![]() |
|
Light-Load-Mode | ![]() |
|
Topology | Buck | |
Peak Efficiency | 97 % | |
Component count min. | 3 | |
current limit adjustable | ![]() |
|
Nr.of packages | 1 | |
CSP | WLCSP-6 | |
SC70 | ||
SOT | ||
MSOP | ||
QFN/DFN | ||
SO/SOIC | ||
SOP | ||
DIP | ||
TO | ||
DDPAK |
RP509Z-2-2.5 Datasheet
Link to the most up-to-date RP509Z-2-2.5 datasheet and the product page for EVM, tools and support information.
RP509Z-2-2.5 Sample stock and distributor price breaks
RP509Z-2-2.5 prices and online available distributors.


Available Distributors with stock: 0
Available Distributors with stock: 0
List of equivalents and alternatives
The following DC/DC Buck Converter are similar to RP509Z-2-2.5. Optional, compare RP509Z-2-2.5 side-by-side with other Buck Converter via the Comparison function.
Inductor suggestions
Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of RP509Z-2-2.5.
Order Code | Spec | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | L x W x H (mm) |
744030001 | 1.2 | 1.0 | 1.1 | 95.00 | 3.3 x 3.5 x 1.05 | |
74479763210A | 1.0 | 0.9 | 0.7 | 200.00 | 1.6 x 0.8 x 0.95 | |
74479773210 | 1.0 | 1.2 | 0.8 | 180.00 | 2 x 1.25 x 0.6 | |
74479775210A | 1.0 | 1.3 | 1.0 | 110.00 | 2 x 1.2 x 1.2 | |
74479775215 | 1.5 | 1.1 | 0.8 | 160.00 | 2 x 1.2 x 1.2 | |
74479776210 | 1.0 | 1.4 | 1.0 | 90.00 | 2 x 1.6 x 1 | |
74479776215 | 1.5 | 1.3 | 0.8 | 110.00 | 2 x 1.6 x 1 | |
74479787210B | 1.0 | 2.0 | 1.2 | 60.00 | 2.5 x 2 x 1 | |
74479787215A | 1.5 | 1.9 | 1.1 | 70.00 | 2.5 x 2 x 1 | |
74479887210A | 1.0 | 1.6 | 1.0 | 100.00 | 2.5 x 2 x 1 |