RP400x451A-B Boost Converter Overview

Description

Manufacturer
 
Category
Sub-Category

RP400x451A-B is a 4.50 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 4.50 V to 4.50 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 RP400x451A-B is available in 2 package option(s): SOT23-5 DFN-6 .

For RP400x451A-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. 4.50 V
V-OUT max. 4.50 V
VOUT 4.50
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. 720 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

RP400x451A-B Datasheet

Link to the most up-to-date RP400x451A-B datasheet and the product page for EVM, tools and support information.

RP400x451A-B

RP400x451A-B Price breaks and distributor sample stock

RP400x451A-B prices and available online distributors.

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no online Distributor with RP400x451A stock available

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Alternatives and equivalents

The following DC/DC Boost Converter are similar to RP400x451A-B. Optional, compare RP400x451A-B side-by-side with other Boost Converter via the Comparison function.

no alternatives found

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of RP400x451A-B.

V-IN min. 0.9 V, Current-Limit typ. 0.9 A, V-OUT max. 4.5 V, Frequency typ. 700 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744040520047 0.5 4.9 8.0 13.90 5 x 5 x 2
74407000047 0.5 7.8 6.5 5.80 8 x 8 x 2
744373210047 0.5 5.4 9.0 18.00 4.45 x 4.06 x 1.2
744373240056 0.6 6.0 10.5 13.50 4.45 x 4.06 x 2
744373240068 0.7 5.5 10.0 16.00 4.45 x 4.06 x 2
744383360047 0.5 4.8 8.0 18.00 3 x 3 x 2
744383560056 0.6 8.5 10.8 7.00 4.1 x 4.1 x 2.1
744383560068 0.7 8.2 9.4 7.50 4.1 x 4.1 x 2.1
744778005 0.5 5.6 9.0 7.20 7.3 x 7.3 x 3.4
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