RT1741A Buck-Boost Converter Overview

Description

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RT1741A is a 5.50 V, 3.00 A output current sync Buck-Boost Converter from . The 1.80 V to 5.50 V input range can be converted into a 1.80 V to 5.50 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 96 %. RT1741A circuitry consists typically of 7 external components and is available in 1 package option(s): WDFN-14 .

For RT1741A 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. 1.80 V
V-IN max. 5.50 V
I-OUT? 3.00 A
V-OUT min. 1.80 V
V-OUT max. 5.50 V
V-OUT fixed adjustable
V-OUT programmable no
sync/non-sync sync
Frequency typ. 2400 kHz
Frequency adjustable fixed
Frequency adjustable min.
Frequency adjustable max.
ext.clock sync yes
Frequency sync. min. 2200 kHz
Frequency sync. max. 2600 kHz
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK yes
Quiescent current max. 40 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 160 °C
Inductor size typ. 2.2 µH
Automotive AEC-Q100 no
Light-Load Mode yes
Topology Buck-Boost
Peak Efficiency 96 %
Component count min. 7
current limit adjustable no
LBI/LBO no
Nr. of package options 1
CSP
SOT
MSOP
QFN WDFN-14
SO/SOIC
SOP

Charts and pictures

RT1741A Datasheet

Link to the most up-to-date RT1741A datasheet and the product page for EVM, tools and support information.

RT1741A

RT1741A Distributor price breaks and sample stock

RT1741A 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.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with RT1741A stock available

Available Distributors with stock: 0

no online Distributor with RT1741A stock available

Equivalents and alternatives

The following Buck-Boost DC/DC Converter are similar to RT1741A. Optional, compare RT1741A side-by-side with other selected Buck-Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% RT6154A RT6154A product overviewRT6154A product overview Richtek WDFN-14
0% ISL91110 ISL91110 product overviewISL91110 product overview Intersil CSP-25
10% TPS63020 TPS63020 product overviewTPS63020 product overview Texas Instruments QFN-14
10% TPS63020-Q1 TPS63020-Q1 product overviewTPS63020-Q1 product overview Texas Instruments QFN-14

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of RT1741A.

V-IN max. 5.5 V, I-OUT 3 A, V-OUT min. 1.8 V, Frequency typ. 2400 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74402500047 0.5 3.3 4.7 19.00 2.8 x 2.8 x 3
744040410047 0.5 3.3 4.3 28.00 4 x 4 x 1.2
74404300033 0.3 4.0 6.0 8.00 4.8 x 4.8 x 3
74404300047 0.5 3.8 5.0 10.00 4.8 x 4.8 x 3
74406800056 0.6 3.4 4.0 22.00 8 x 8 x 1.2
74406900052 0.5 4.3 5.8 15.00 8 x 8 x 1.5
74407000047 0.5 7.8 6.5 5.80 8 x 8 x 2
744383230033 0.3 3.4 6.2 29.00 2.5 x 2 x 1
744383230047 0.5 3.2 5.5 37.00 2.5 x 2 x 1
744383240047 0.5 3.4 6.3 30.00 2.5 x 2 x 1.2
744383240056 0.6 3.3 6.0 37.00 2.5 x 2 x 1.2
744383350047 0.5 4.6 5.8 20.00 3 x 3 x 1.5
74479287147 0.5 3.3 5.0 25.00 2.5 x 2 x 1
74479288147 0.5 3.1 6.0 28.00 2.5 x 2 x 1
74479298147 0.5 3.0 4.5 28.00 3.2 x 2.5 x 1
74479299147 0.5 3.6 6.3 25.00 3.2 x 2.5 x 1.2
74479976133 0.3 3.4 3.7 18.00 2 x 1.6 x 1
784383230033 0.3 3.4 6.2 29.00 2.5 x 2 x 1
784383230047 0.5 3.2 5.5 37.00 2.5 x 2 x 1
784383240047 0.5 3.4 6.3 30.00 2.5 x 2 x 1.2
784383240056 0.6 3.3 6.0 37.00 2.5 x 2 x 1.2
784383350047 0.5 4.6 5.8 20.00 3 x 3 x 1.5
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