Overview

The RAA223021 is a universal input AC/DC switching buck regulator with ultra-low standby power that features a 700V integrated MOSFET capable of delivering up to 12W output power. It supports output voltage as low as 5V.

The RAA223021 combines constant off-time control for heavy load and Pulse Frequency Modulation (PFM) for light-load operation. Constant off-time controls switching frequency above the audible frequency around 43kHz. PFM eliminates any potential audible noises while offering superior light-load efficiency and ultra low power consumption (<20mW at no load). The efficiency is achieved up to 80%. The built-in frequency dithering further reduces EMI noise spectrum.

The RAA223021 also features input brownout protection that prevents input circuitry from the overcurrent at low input voltage, and hiccup protections for output fault conditions such as short-circuit, overload, overvoltage, and open feedback.

The RAA223021 is available in a small 7 Ld SOIC package.

  • Ultra-low standby power (<20mW)
  • No audible noise
  • Low quiescent current (<80μA)
  • Output voltage as low as 3.3V
  • Low EMI with frequency dithering
  • 7 Ld SOIC package
  • Programmable PFM allows optimization of COUT for various standby power requirements
  • Protection features: Short-Circuit Protection (SCP), Overload Protection (OLP), Overvoltage Protection (OVP), open feedback protection, and Over-Temperature Protection (OTP).

Applications

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

Documentation

= Featured Documentation
Type Title Date
Datasheet
RAA223021 Datasheet
PDF 877 KB
Other
RAA223021 Design Spreadsheet Tool rev 1
XLSX 982 KB
2 items

Design & Development

Software & Tools
iSim:PE Offline Simulation Tool
iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
Downloads
RAA223021 AC Analysis 230Vac-12V iSim:PE ModelRAA223021 Short Circuit 12V iSim:PE ModelRAA223021 Overload 12V iSim:PE ModelRAA223021 Transient 230Vac-12V iSim:PE ModelRAA223021 Startup 230Vac-12V iSim:PE Model
 Simulator Renesas
1 item
RTKA223021DE0000BU High Voltage Buck Converter Evaluation Board - Top

RTKA223021DE0000BU

Evaluation
Learn More

RAA223021 High Voltage Buck Converter Evaluation Board supports 85VAC to 265VAC Input and 12V 667mA Output

The RAA223021 evaluation board (RTKA223021DE0000BU) is a high voltage buck converter that demonstrates a low-cost high-performance non-isolated AC/DC converter. It...

Featured Documents:
RTKA223021DE0000BU User Manual
RTKA223021DE0010BU High Voltage Flyback Converter Evaluation Board - Top

RTKA223021DE0010BU

Evaluation
Learn More

RAA223021 High Voltage Flyback Converter Evaluation Board supports 85VAC to 265VAC Input and 12V 1A Output

The RAA223021 evaluation board (RTKA223021DE0010BU) is a high voltage flyback converter that is designed to demonstrate a low-cost high-performance isolated AC/DC...

Featured Documents:
RTKA223021DE0010BU User Manual

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    RAA2230214GSP#HA1
    circleActive
    memory
    spa
    view_in_ar
    Samples Available
    Buy Now
    		SOICN Reel 3 Get Samples,
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    Videos & Training

    RAA2230xx Non-Isolated AC/DC 700V Buck Regulator Family

    The innovative RAA2230xx family of 700V non-isolated AC/DC buck regulators delivers ultra-low-power consumption, excellent noise and EMI suppression, as well as reduced overall system cost for a wide range of applications, including home appliances, sensing systems, white goods, power meters and industrial controls.

    Video List
    RAA2230xx Non-Isolated AC/DC 700V Buck Regulator Family

    News & Blog Posts

    Blog Post Jun 25, 2021
    News Jun 24, 2021