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reference designRA223021

Renesas RA223021

700V AC/DC Buck Regulator with Ultra-Low Standby Power

Overview

TopologyFlyBuck (Double Buck)
Input voltage85-265 V
Output 112 V / 0.67 A
IC revision1.1

Description

The RAA223021 evaluation board (RTKA223021DE0000BU) is a high voltage buck converter that demonstrates a low-cost high performance non-isolated AC/DC conversion from an universal input of 85VAC to 265VAC, to a 12V output with the output current up to 667mA.The board has built-in overcurrent, short-circuit, input brownout, and over-temperature protection, and is designed on a single side PCB with a full-wave input rectification. It is pre-compliant with conducted EMI requirements by EN55022/CISPR 22. RTKA223021DE0000BU uses the RAA223021 SOIC-7 packaged IC.

Features

  • Universal input
  • Single side PCB with low-cost external components
  • EMI compliance for EN55022/CISPR22
  • Standby power less than 20mW
  • No audible noise

Typical applications

  • Home appliances, Home automation,IoT
  • sensors, Metering and Industry control
  • Bias power

More information

Products

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Product series
L(µH)
IR(A)
ISAT,10%(A)
RDC max.(Ω)
fres(MHz)
Version
C
VR(V (DC))
Endurance(h)
IRIPPLE(mA)
ILeak(µA)
DF(%)
Pitch(mm)
Ø D(mm)
L(mm)
Packaging
SamplesAvailability & Sample
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7447462221
SPECWE-TI Radial Leaded Wire Wound Inductor, 220 µH, 0.5 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TI Radial Leaded Wire Wound Inductor
Inductance220 µH
Rated Current0.5 A
Saturation Current @ 10%0.57 A
DC Resistance1.2 Ω
Self Resonant Frequency4.8 MHz
VersionHeat Shrinking Tube 
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Length6 mm
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7447480681
SPECWE-TI Radial Leaded Wire Wound Inductor, 680 µH, 0.9 A
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Availability
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Downloads9 files

EDA models: Components ZIP

CAD files ZIP

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Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TI Radial Leaded Wire Wound Inductor
Inductance680 µH
Rated Current0.9 A
Saturation Current @ 10%1 A
DC Resistance0.79 Ω
Self Resonant Frequency1.5 MHz
VersionStandard 
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Length10.5 mm
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860021375011
SPECWCAP-ATG5 Aluminum Electrolytic Capacitors, –, –
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Availability
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Downloads8 files

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CAD files ZIP

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Download all 8 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-ATG5 Aluminum Electrolytic Capacitors
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Capacitance10 µF
Rated Voltage400 V (DC)
Endurance 2000
Ripple Current104 mA
Leakage Current120 µA
Dissipation Factor15 %
Pitch5 mm
Diameter10 mm
Length14 mm
PackagingAmmopack 
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