RP604-3.3 Buck-Boost Converter Overview



RP604-3.3 is a 5.50 V, 0.30 A output current sync Buck-Boost Converter from . The 1.80 V to 5.50 V input range can be converted into a 3.30 V to 3.30 V output voltage.

The Buck-Boost Converter features fixed 2400 kHz switching frequency, requires a typical inductor size of 2.2 µH and provides a peak efficiency of 93 %. RP604-3.3 circuitry consists typically of 3 external components and is available in 2 package option(s): WLCSP-20 .

For RP604-3.3 replacement search, 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.

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V-IN min. 1.80 V
V-IN max. 5.50 V
I-OUT? 0.30 A
V-OUT min. 3.30 V
V-OUT max. 3.30 V
V-OUT fixed 3.30
V-OUT programmable no
sync/non-sync sync
Frequency typ. 2400 kHz
Frequency adjustable fixed
Frequency adjustable min.
Frequency adjustable max.
ext.clock sync no
Frequency sync. min.
Frequency sync. max.
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. -0.3 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. 2.2 µH
Automotive AEC-Q100 no
Light-Load Mode yes
Topology Buck-Boost
Peak Efficiency 93 %
Component count min. 3
current limit adjustable no
Nr. of package options 2

Charts and pictures

RP604-3.3 Datasheet

Link to the most up-to-date RP604-3.3 datasheet and the product page for EVM, tools and support information.


RP604-3.3 Distributor price breaks and sample stock

RP604-3.3 prices and available buy online distributors. Optional, check regional sources for price and inventory: for Russia via efind, for South Korea via ICPart, for Japan via ICBAIBAI, for China via IC5858 or International via IC2IC.


Available Distributors with stock: 0

no online Distributor with RP604 stock available

Available Distributors with stock: 0

no online Distributor with RP604 stock available

Equivalents and alternatives

The following Buck-Boost DC/DC Converter are similar to RP604-3.3. Optional, compare RP604-3.3 side-by-side with other selected Buck-Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
50% LTC3129-1-3.3 LTC3129-1-3.3 product overviewLTC3129-1-3.3 product overview Linear Technology MSOP-16, QFN-16

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of RP604-3.3.

V-IN max. 5.5 V, I-OUT 0.3 A, V-OUT min. 3.3 V, Frequency typ. 2400 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744028004 4.7 0.9 0.7 265.00 2.8 x 2.8 x 1.2
744029004 4.7 1.0 0.8 170.00 2.8 x 2.8 x 1.5
744030004 4.7 0.5 0.5 252.00 3.3 x 3.5 x 1.05
74404020047 4.7 0.7 0.8 399.00 2 x 1.6 x 1
74479887247A 4.7 1.0 0.4 230.00 2.5 x 2 x 1
74479888247 4.7 1.0 0.7 380.00 2.5 x 2 x 1
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