RT8509 Boost Converter Overview

Description

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Category
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RT8509 is a 24.00 V, 3.50 A switch current limit non-sync Boost Converter from . The input voltage from 2.80 V to 14.00 V  can be boosted into an output voltage ranging from 2.80 V to 24.00 V.

Features of the Boost Converter are fixed 1200 kHz switching frequency, a typical inductor size of 4.7 µH and it offers a peak efficiency of  up to 91 %. The minimum external component count is 12 and RT8509 is available in 1 package option(s): WDFN-10 .

For RT8509 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. 2.80 V
V-IN max. 14.00 V
Current-Limit typ.? 3.50 A
V-OUT min. 2.80 V
V-OUT max. 24.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync non-sync
Frequency typ. 1200 kHz
Frequency adjustable fixed
Frequency selectable
Frequency adj. min.
Frequency adj. max.
extern clock sync. no
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK no
LBI/LBO no
Frequency sync. min.
Frequency sync. max.
Down Mode no
Quiescent current max. -5000 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 155 °C
Inductor size typ. 4.7 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Boost
Peak Efficiency 91 %
Component count min. 12
current limit adjustable no
Nr.of package options 1
CSP
SC70
SOT
MSOP
QFN/DFN WDFN-10
SO/SOIC
SOP
DIP
TO
DDPAK

RT8509 Datasheet

Link to the most up-to-date RT8509 datasheet and the product page for EVM, tools and support information.

RT8509

RT8509 Price breaks and distributor sample stock

RT8509 prices and available online distributors.

OEMSecrets.com
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Available Distributors with stock: 0

no online Distributor with RT8509 stock available

Available Distributors with stock: 0

no online Distributor with RT8509 stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to RT8509. Optional, compare RT8509 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% MIC2253-06 MIC2253-06 product overviewMIC2253-06 product overview Micrel MLF-12
0% PAM2422 PAM2422 product overviewPAM2422 product overview Diodes SOP-8
0% PAM2423 PAM2423 product overviewPAM2423 product overview Diodes SOP-8
10% LT1171 LT1171 product overviewLT1171 product overview Linear Technology TO220-5, DD-5
10% LT1171HV LT1171HV product overviewLT1171HV product overview Linear Technology TO220-5, DD-5
10% LT1935 LT1935 product overviewLT1935 product overview Linear Technology TSOT23-5
10% LT3489 LT3489 product overviewLT3489 product overview Linear Technology MSOP-8E
10% MAX17112 MAX17112 product overviewMAX17112 product overview Maxim Integrated TDFN-EP-10
10% MP1530 MP1530 product overviewMP1530 product overview MPS QFN-16, TSSOP-16
10% PAM2421 PAM2421 product overviewPAM2421 product overview Diodes SOP-8
25% TPS61086 TPS61086 product overviewTPS61086 product overview Texas Instruments QFN-10
50% LT1172 LT1172 product overviewLT1172 product overview Linear Technology SO-8, DIP-8, TO220-5, DD-5
50% LT1172HV LT1172HV product overviewLT1172HV product overview Linear Technology SO-8, DIP-8, TO220-5, DD-5
50% LT1946 LT1946 product overviewLT1946 product overview Linear Technology MSOP-8
50% LT1946A LT1946A product overviewLT1946A product overview Linear Technology MSOP-8
50% CS5171 CS5171 product overviewCS5171 product overview ON Semiconductor SOIC-8
50% CS5173 CS5173 product overviewCS5173 product overview ON Semiconductor SOIC-8
50% NCV5171 NCV5171 product overviewNCV5171 product overview ON Semiconductor SOIC-8
50% NCV5173 NCV5173 product overviewNCV5173 product overview ON Semiconductor SOIC-8
50% SC4503 SC4503 product overviewSC4503 product overview Semtech TSOT23-5, MLPD-8
50% R1213K-001B R1213K-001B product overviewR1213K-001B product overview Ricoh DFN-12

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of RT8509.

V-IN min. 2.8 V, Current-Limit typ. 3.5 A, V-OUT max. 24 V, Frequency typ. 1200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744303012 0.1 31.0 55.0 0.33 10 x 6.8 x 5
744303015 0.2 31.0 42.0 0.33 10 x 6.8 x 5
744303022 0.2 31.0 32.0 0.33 10 x 6.8 x 5
7443081018 0.2 38.0 60.0 0.29 9.4 x 6.2 x 8.1
7443081022 0.2 38.0 45.0 0.29 9.4 x 6.2 x 8.1
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