Overview

The RAA211230 is an integrated 24V, 3A synchronous buck regulator with current mode constant on-time (COT) control. The RAA211230 features comprehensive protection including input undervoltage lockout (UVLO), overcurrent protection (OCP), output undervoltage protection (OUVP), and over-temperature protection (OTP).

RAA211230 Typical Application Circuit Diagram
RAA211230 Pin Assignments
RAA211230 Typical Application Circuit Diagram
RAA211230 Pin Assignments
  • 4.5V to 24V input supply range
  • Up to 3A output current
  • Integrated high-side (85mΩ) and low-side (45mΩ) MOSFETs
  • 400μA quiescent current
  • Minimum on-time of 60ns & minimum off-time of 275ns
  • 0.765V reference voltage with 2% accuracy
  • PFM mode under light load condition 
  • Current mode Constant On-Time (COT) control with internal compensation
  • Internal 0.8ms soft start time
  • Protection: Low-Side Overcurrent (LSOC) limit, input Undervoltage Lockout (UVLO), Over-Temperature Protection (OTP), Output Undervoltage Protection (OUVP) with
  • Hiccup Mode
  • Accurate EN threshold 
  • 6 LD TSOT23 package

Applications

  • General purpose
  • Industrial power supplies
  • Embedded systems and I/O supplies

Documentation

= Featured Documentation
Type Title Date
Datasheet
RAA211230 Datasheet
PDF 3.97 MB
Brochure
Power Products Brochure
PDF 8.73 MB
Brochure
Industrial Power Management Brochure
PDF 5.49 MB 日本語
3 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
RAA211230 Startup iSim:PE ModelRAA211230 Analysis iSim:PE Model
 Simulator Renesas
1 item

Software Downloads
Type Title Date
Software & Tools - Other
RAA211230 Power Design Spreadsheet
XLSX 286 KB
1 item

Boards & Kits

RTKA211230DE0020BU Evaluation Board

RTKA211230DE0020BU

Evaluation
Learn More

RAA211230 Synchronous Buck Evaluation Board with 4.5V to 24V Input Range, 3.3V 3A Output (TSOT23-6 version)

The RTKA211230DE0020BU board evaluates the RAA211230, a DC/DC synchronous step-down regulator with current mode Constant On Time (COT) control. The RAA211230 supports a...

Featured Documents:
RTKA211230DE0020BU Evaluation Board 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
    PLP
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    RAA2112304GP3#JA0
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    spa
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    Samples Available
    		 2033 Dec TSOT Reel 1 0.712 Get Samples,
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    Compact Buck Regulators with COT Control

    Renesas’ RAA211230/320 family of synchronous buck regulators are integrated with current mode constant on-time (COT) control which enables fast transient response while shrinking the output filter size. Visit renesas.com/cot-regulators to learn more about how these high performance, compact and pin-compatible COT regulators will make designing your power supply easy!

    Video List
    Compact Buck Regulators with COT Control