RT2853B Buck Converter overview

Description

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Category
Sub-Category

RT2853B is a 18.00 V sync Buck Converter from with 3.00 A output current. The maximum 18.00 V input voltage can be regulated down into a 0.77 V to 7.00 V output voltage.

It requires are a typical inductor size of 1.40 µH, a typical external component count of 9 and achieves a peak efficiency of 92 %. Further RT2853B characteristics are a fixed 650 kHz switching frequency and 1 available package option(s): WQFN-16 .

For the RT2853B 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? 3.00 A
V-OUT min. 0.77 V
V-OUT max. 7.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 650 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. 1300 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. 1.40 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 92 %
Component count min. 9
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN WQFN-16
SO/SOIC
SOP
DIP
TO
DDPAK

RT2853B Datasheet

Link to the most up-to-date RT2853B datasheet and the product page for EVM, tools and support information.

RT2853B

RT2853B Sample stock and distributor price breaks

RT2853B prices and online available distributors.

OEMSecrets.com
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Available Distributors with stock: 0

no online Distributor with RT2853B stock available

Available Distributors with stock: 0

no online Distributor with RT2853B stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to RT2853B. Optional, compare RT2853B side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% AP6508 AP6508 product overviewAP6508 product overview Diodes DFN-14
0% MAX15041 MAX15041 product overviewMAX15041 product overview Maxim TQFN-EP-16
0% MP28253 MP28253 product overviewMP28253 product overview MPS QFN-14
0% MP28255 MP28255 product overviewMP28255 product overview MPS QFN-14
0% LM20323 LM20323 product overviewLM20323 product overview Texas Instruments HTSSOP-20
0% LM20333 LM20333 product overviewLM20333 product overview Texas Instruments HTSSOP-20
0% RT2853A RT2853A product overviewRT2853A product overview Richtek WQFN-16
0% RT2858B RT2858B product overviewRT2858B product overview Richtek PSOP-8
0% RT7231 RT7231 product overviewRT7231 product overview Richtek TSSOP-14, WDFN-10
0% RT7232 RT7232 product overviewRT7232 product overview Richtek TSSOP-14, WDFN-10
0% RT7233 RT7233 product overviewRT7233 product overview Richtek PSOP-8
0% RT7234 RT7234 product overviewRT7234 product overview Richtek PSOP-8
0% RT7235 RT7235 product overviewRT7235 product overview Richtek TSSOP-14, WDFN-10
0% RT7236 RT7236 product overviewRT7236 product overview Richtek TSSOP-14, WDFN-10
0% RT7239 RT7239 product overviewRT7239 product overview Richtek PSOP-8
0% RT7240 RT7240 product overviewRT7240 product overview Richtek PSOP-8
10% MAX15066 MAX15066 product overviewMAX15066 product overview Maxim WLP-16
10% MAX15166 MAX15166 product overviewMAX15166 product overview Maxim WLP-16
10% MP2214 MP2214 product overviewMP2214 product overview MPS SOIC-8E, QFN-10
10% TPS62134A TPS62134A product overviewTPS62134A product overview Texas Instruments VQFN-16
10% TPS62134B TPS62134B product overviewTPS62134B product overview Texas Instruments VQFN-16
10% TPS62134C TPS62134C product overviewTPS62134C product overview Texas Instruments VQFN-16
10% TPS62134D TPS62134D product overviewTPS62134D product overview Texas Instruments VQFN-16
25% IR3822M IR3822M product overviewIR3822M product overview IRF PQFN-15
50% MP2209 MP2209 product overviewMP2209 product overview MPS QFN-14

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of RT2853B.

V-IN max. 18 V, I-OUT 3 A, V-OUT min. 0.765 V, Frequency typ. 650 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404042010 1.0 3.2 4.8 27.00 4 x 4 x 1.8
74404052010 1.0 3.9 5.5 19.80 5 x 5 x 2
74404052012 1.2 3.6 5.2 23.40 5 x 5 x 2
74404052015 1.5 3.3 4.9 25.70 5 x 5 x 2
74404054015 1.5 4.3 6.9 15.00 5 x 5 x 4
74404063010 1.0 5.2 7.5 10.00 6 x 6 x 2.8
74404063015 1.5 4.6 6.6 13.00 6 x 6 x 2.8
744062001 1.0 4.8 4.6 10.00 6.8 x 6.8 x 2.5
7440620015 1.5 4.3 4.0 10.00 6.8 x 6.8 x 2.5
7440650015 1.5 7.2 7.5 7.30 10 x 10 x 3.1
7440690010 1.0 3.6 3.8 21.00 8 x 8 x 1.5
7440700012 1.2 4.8 4.2 12.50 8 x 8 x 2
74408941010 1.0 3.0 5.4 29.50 4.8 x 4.8 x 2.1
74408942012 1.2 3.2 5.5 22.00 4.8 x 4.8 x 3.1
74408943010 1.0 3.3 6.5 19.00 4.8 x 4.8 x 4.1
74437321015 1.5 3.0 4.0 55.00 4.45 x 4.06 x 1.2
74438336010 1.0 4.0 5.0 26.00 3 x 3 x 2
74438336012 1.2 3.9 4.8 30.00 3 x 3 x 2
74438336015 1.5 3.7 4.5 33.00 3 x 3 x 2
7447730 1.0 4.0 5.7 14.00 4 x 4.5 x 3.5
744773014 1.4 3.4 5.0 22.00 4 x 4.5 x 3.5
74477790015 1.5 4.3 7.3 15.00 7.3 x 7.3 x 4.5
744778001 1.0 5.4 6.4 9.00 7.3 x 7.3 x 3.4
7447785001 1.0 3.5 4.5 31.00 5.9 x 6.2 x 3.3
7447786001 1.0 5.0 5.5 28.00 5.9 x 6.2 x 5.1
7447789001 1.0 5.4 6.4 10.00 7.3 x 7.3 x 3.5
744787012 1.2 4.9 6.0 8.50 7.8 x 7 x 5
74479299210 1.0 3.0 5.2 38.00 3.2 x 2.5 x 1.2
7847730 1.0 4.0 5.7 14.00 4 x 4.5 x 3.5
784778010 1.0 3.5 7.0 30.00 7.3 x 7.3 x 3.5
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