RT2856 Buck Converter overview

Description

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RT2856 is a 18.00 V sync Buck Converter from with 6.00 A output current. The maximum 18.00 V input voltage can be regulated down into a 1.60 V to 10.00 V output voltage.

It requires are a typical inductor size of 4.70 µH, a typical external component count of 11 and achieves a peak efficiency of 95 %. Further RT2856 characteristics are a adjustable 1600 kHz switching frequency and 1 available package option(s): WQFN-14 .

For the RT2856 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? 6.00 A
V-OUT min. 1.60 V
V-OUT max. 10.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 1600 kHz
Frequency adjustable
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 200 kHz
Frequency adj./ ext.clock max 1600 kHz
Softstart yes
Softstart adjustable yes
Tracking yes
PG/Power OK yes
Quiescent current max. 1000 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 175 °C
Inductor size typ. 4.70 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 95 %
Component count min. 11
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN WQFN-14
SO/SOIC
SOP
DIP
TO
DDPAK

RT2856 Datasheet

Link to the most up-to-date RT2856 datasheet and the product page for EVM, tools and support information.

RT2856

RT2856 Sample stock and distributor price breaks

RT2856 prices and online available distributors.

OEMSecrets.com
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Available Distributors with stock: 0

no online Distributor with RT2856 stock available

Available Distributors with stock: 0

no online Distributor with RT2856 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to RT2856. Optional, compare RT2856 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% IR3856M IR3856M product overviewIR3856M product overview IRF PQFN-17
0% IR3856WM IR3856WM product overviewIR3856WM product overview IRF PQFN-17
0% IR3859M IR3859M product overviewIR3859M product overview IRF PQFN-17
10% LTC3605A LTC3605A product overviewLTC3605A product overview Linear Technology QFN-24
10% TPS54020 TPS54020 product overviewTPS54020 product overview Texas Instruments VQFN-15
10% TPS54623 TPS54623 product overviewTPS54623 product overview Texas Instruments QFN-14
10% TPS54521 TPS54521 product overviewTPS54521 product overview Texas Instruments VQFN-14
10% TPS54821 TPS54821 product overviewTPS54821 product overview Texas Instruments VQFN-14
25% LTC3605 LTC3605 product overviewLTC3605 product overview Linear Technology QFN-24
50% IR3853M IR3853M product overviewIR3853M product overview IRF PQFN-17
50% LT3690 LT3690 product overviewLT3690 product overview Linear Technology QFN-26
50% LM43603 LM43603 product overviewLM43603 product overview Texas Instruments HTSSOP-16
50% LM43603-Q1 LM43603-Q1 product overviewLM43603-Q1 product overview Texas Instruments HTSSOP-16

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of RT2856.

V-IN max. 18 V, I-OUT 6 A, V-OUT min. 1.6 V, Frequency typ. 1600 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744040640047 0.5 6.9 16.0 6.00 6 x 6 x 4.5
744305040 0.4 28.0 20.0 0.16 13.5 x 13.3 x 5.2
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
744314047 0.5 18.0 20.0 1.35 7 x 6.9 x 5
744316033 0.3 18.5 20.0 1.75 5.5 x 5.3 x 4.3
744316047 0.5 15.0 16.0 2.75 5.5 x 5.3 x 4.3
744373240033 0.3 8.0 16.5 7.80 4.45 x 4.06 x 2
744373240047 0.5 6.8 14.5 11.20 4.45 x 4.06 x 2
744373240056 0.6 6.0 10.5 13.50 4.45 x 4.06 x 2
744373340047 0.5 6.8 16.0 7.30 5.7 x 5.2 x 2
744373360047 0.5 8.3 20.0 6.40 5.7 x 5.2 x 3
744383560033 0.3 9.6 12.4 6.00 4.1 x 4.1 x 2.1
744383560056 0.6 8.5 10.8 7.00 4.1 x 4.1 x 2.1
7447798050 0.5 18.5 18.0 2.20 10.2 x 10.2 x 6.4
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