RP400x321A-B Boost Converter Overview

Description

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Category
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RP400x321A-B is a 3.20 V, 0.90 A switch current limit non-sync Boost Converter from . The input voltage from 0.90 V to 5.50 V  can be boosted into an output voltage ranging from 3.20 V to 3.20 V.

Features of the Boost Converter are fixed 700 kHz switching frequency, a typical inductor size of 6.8 µH and it offers a peak efficiency of  up to 92 %. The minimum external component count is 4 and RP400x321A-B is available in 2 package option(s): SOT23-5 DFN-6 .

For RP400x321A-B 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.

ParameterValueReplacement
Search Filter
V-IN min. 0.90 V
V-IN max. 5.50 V
Current-Limit typ.? 0.90 A
V-OUT min. 3.20 V
V-OUT max. 3.20 V
VOUT 3.20
VOUT programmable no
sync/non-sync non-sync
Frequency typ. 700 kHz
Frequency adjustable fixed
Frequency selectable
Frequency adj. min.
Frequency adj. max.
extern clock sync. no
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
LBI/LBO no
Frequency sync. min.
Frequency sync. max.
Down Mode no
Quiescent current max. 520 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 6.8 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Boost
Peak Efficiency 92 %
Component count min. 4
current limit adjustable no
Nr.of package options 2
CSP
SC70
SOT SOT23-5
MSOP
QFN/DFN DFN-6
SO/SOIC
SOP
DIP
TO
DDPAK

RP400x321A-B Datasheet

Link to the most up-to-date RP400x321A-B datasheet and the product page for EVM, tools and support information.

RP400x321A-B

RP400x321A-B Price breaks and distributor sample stock

RP400x321A-B prices and available online distributors.

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Available Distributors with stock: 0

no online Distributor with RP400x321A stock available

Available Distributors with stock: 0

no online Distributor with RP400x321A stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to RP400x321A-B. Optional, compare RP400x321A-B side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% RP401-x321A-B-C RP401-x321A-B-C product overviewRP401-x321A-B-C product overview Ricoh SOT23-5, DFN-6
0% RP600K-A-B-C-32 RP600K-A-B-C-32 product overviewRP600K-A-B-C-32 product overview Ricoh DFN-10

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of RP400x321A-B.

V-IN min. 0.9 V, Current-Limit typ. 0.9 A, V-OUT max. 3.2 V, Frequency typ. 700 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404300082 0.8 3.5 3.7 14.00 4.8 x 4.8 x 3
74406900052 0.5 4.3 5.8 15.00 8 x 8 x 1.5
74407000082 0.8 6.2 5.5 8.50 8 x 8 x 2
744089420082 0.8 3.5 6.7 21.00 4.8 x 4.8 x 3.1
744383350082 0.8 3.5 7.0 30.00 3 x 3 x 1.5
744383360068 0.7 4.5 6.2 22.00 3 x 3 x 2
784383350082 0.8 3.5 7.0 30.00 3 x 3 x 1.5
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