Overview

The RAA211320 is an integrated 30V, 2A synchronous buck regulator with current mode constant on-time (COT) control. The RAA211320 features comprehensive protection including input undervoltage lockout (UVLO), overcurrent protection (OCP), output undervoltage protection (OUVP), and over-temperature protection (OTP).

RAA211320 Typical Application Circuit Diagram
RAA211320 Diagram with VIN UVLO Programming by ENABLE
RAA211320 Typical Application Circuit Diagram
RAA211320 Diagram with VIN UVLO Programming by ENABLE
  • 4.5V to 30V input supply range
  • Up to 2A output current
  • Integrated high-side (125mΩ) and low-side (75mΩ) MOSFETs
  • 400μA quiescent current
  • Minimum on-time of 70ns & Minimum off-time of 225ns
  • 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
RAA211320 Datasheet
PDF 5.23 MB
Other
RAA211320 Design Spreadsheet
XLSX 142 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
RAA211320 Startup iSim:PE ModelRAA211320 AC Analysis iSim:PE Model
 Simulator Renesas
1 item
RTKA211320DE0030BU Evaluation Board

RTKA211320DE0030BU

Evaluation
Learn More

RAA211320 Synchronous Buck Evaluation Board with 4.5V to 30V Input Range, 3.3V 2A Output

The RTKA211320DE0030BU board evaluates the RAA211320, a DC/DC synchronous step-down regulator with current mode Constant On Time (COT) control. The RAA211320 supports a...

Featured Documents:
RTKA211320DE0030BU 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.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    PLP
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    RAA2113204GP3#JA0
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    spa
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    Samples Available
    Buy Now
    		2033 Dec TSOT Reel 1 0.7868 Get Samples,
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    Videos & Training

    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