RT6239B Buck Converter overview

Description

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RT6239B is a 18.00 V sync Buck Converter from with 9.00 A output current. The maximum 18.00 V input voltage can be regulated down into a 0.70 V to 8.00 V output voltage.

It requires are a typical inductor size of 1.00 µH, a typical external component count of 10 and achieves a peak efficiency of 95 %. Further RT6239B characteristics are a fixed 500 kHz switching frequency and 1 available package option(s): UQFN-14 .

For the RT6239B replacement search, please 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. 4.50 V
V-IN max. 18.00 V
I-OUT? 9.00 A
V-OUT min. 0.70 V
V-OUT max. 8.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 500 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK yes
Quiescent current max. 900 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 150 °C
Inductor size typ. 1.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 95 %
Component count min. 10
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN UQFN-14
SO/SOIC
SOP
DIP
TO
DDPAK

RT6239B Datasheet

Link to the most up-to-date RT6239B datasheet and the product page for EVM, tools and support information.

RT6239B

RT6239B Sample stock and distributor price breaks

RT6239B prices and online available distributors.

OEMSecrets.com
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Available Distributors with stock: 0

no online Distributor with RT6239B stock available

Available Distributors with stock: 0

no online Distributor with RT6239B stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to RT6239B. Optional, compare RT6239B side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% XR76112 XR76112 product overviewXR76112 product overview Exar QFN-30
0% XR76115 XR76115 product overviewXR76115 product overview Exar QFN-30
0% RT6239A RT6239A product overviewRT6239A product overview Richtek UQFN-14
10% MP38875 MP38875 product overviewMP38875 product overview MPS QFN-20
10% MP38876 MP38876 product overviewMP38876 product overview MPS QFN-20
10% XR76108 XR76108 product overviewXR76108 product overview Exar QFN-30
25% IR3820M IR3820M product overviewIR3820M product overview IRF PQFN-15
25% IR3821AM IR3821AM product overviewIR3821AM product overview IRF PQFN-15
25% IR3821M IR3821M product overviewIR3821M product overview IRF PQFN-15
25% MAX8654 MAX8654 product overviewMAX8654 product overview Maxim TQFN-36
25% TPS54625 TPS54625 product overviewTPS54625 product overview Texas Instruments HTSSOP-14
25% TPS54626 TPS54626 product overviewTPS54626 product overview Texas Instruments HTSSOP-14
50% IR3822AM IR3822AM product overviewIR3822AM product overview IRF PQFN-15
50% RT7235 RT7235 product overviewRT7235 product overview Richtek TSSOP-14, WDFN-10
50% RT7236 RT7236 product overviewRT7236 product overview Richtek TSSOP-14, WDFN-10
50% RT7239 RT7239 product overviewRT7239 product overview Richtek PSOP-8
50% RT7240 RT7240 product overviewRT7240 product overview Richtek PSOP-8
50% TPS62180 TPS62180 product overviewTPS62180 product overview Texas Instruments DSBGA-24
50% TPS62184 TPS62184 product overviewTPS62184 product overview Texas Instruments DSBGA-24

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of RT6239B.

V-IN max. 18 V, I-OUT 9 A, V-OUT min. 0.7 V, Frequency typ. 500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744305040 0.4 28.0 20.0 0.16 13.5 x 13.3 x 5.2
744308040 0.4 25.0 26.0 0.37 10.1 x 7 x 7
7443081040 0.4 38.0 21.0 0.29 9.4 x 6.2 x 8.1
744310055 0.5 14.0 20.0 3.70 7 x 6.9 x 3.3
744311047 0.4 19.0 25.0 1.85 7 x 6.9 x 4
744311068 0.7 17.0 20.0 3.10 7 x 6.9 x 4
744314047 0.5 18.0 20.0 1.35 7 x 6.9 x 5
744316047 0.5 15.0 16.0 2.75 5.5 x 5.3 x 4.3
744316068 0.7 12.8 13.5 4.00 5.5 x 5.3 x 4.3
744323068 0.7 14.0 21.0 4.79 10.6 x 10.6 x 3.1
7443340068 0.7 19.0 23.5 2.65 8.4 x 7.9 x 7.5
744373460068 0.7 11.0 25.0 4.80 7.3 x 6.6 x 3
744373490068 0.7 12.0 26.0 4.00 7.3 x 6.6 x 5
744373770068 0.7 17.5 27.0 1.80 13.5 x 12.6 x 3.5
74477009 0.5 23.5 26.4 2.90 12 x 12 x 8
7447715906 0.6 9.5 19.0 4.50 12 x 12 x 4.5
7447797050 0.5 13.2 23.0 4.30 10.2 x 10.2 x 4.5
7447798050 0.5 18.5 18.0 2.20 10.2 x 10.2 x 6.4
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