ZHCSF41B December   2015  – March 2021 LMR16030

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Fixed Frequency Peak Current Mode Control
      2. 7.3.2  Slope Compensation
      3. 7.3.3  Sleep Mode
      4. 7.3.4  Low Dropout Operation and Bootstrap Voltage (BOOT)
      5. 7.3.5  Adjustable Output Voltage
      6. 7.3.6  Enable and Adjustable Undervoltage Lockout
      7. 7.3.7  External Soft Start
      8. 7.3.8  Switching Frequency and Synchronization (RT/SYNC)
      9. 7.3.9  Power Good (PGOOD)
      10. 7.3.10 Overcurrent and Short Circuit Protection
      11. 7.3.11 Overvoltage Protection
      12. 7.3.12 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Active Mode
      3. 7.4.3 CCM Mode
      4. 7.4.4 Light Load Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Output Voltage Set-Point
        3. 8.2.2.3 Switching Frequency
        4. 8.2.2.4 Output Inductor Selection
        5. 8.2.2.5 Output Capacitor Selection
        6. 8.2.2.6 Schottky Diode Selection
        7. 8.2.2.7 Input Capacitor Selection
        8. 8.2.2.8 Bootstrap Capacitor Selection
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 第三方米6体育平台手机版_好二三四免责声明
      2. 11.1.2 Development Support
        1. 11.1.2.1 Custom Design With WEBENCH® Tools
    2. 11.2 接收文档更新通知
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 静电放电警告
    6. 11.6 术语表
  12. 12Mechanical, Packaging, and Orderable Information

8.2.2.3 Switching Frequency

For desired frequency, use Equation 8 to calculate the required value for RT.

Equation 8. GUID-13B533FC-8D1D-4196-BBFF-E6A855DF8B85-low.gif

For 500 KHz, the calculated RT is 49.66 kΩ and standard value 49.9 kΩ can be used to set the switching frequency at 500 KHz.
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