ZHCSJO3B May   2019  – November 2020 LMR34215-Q1

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. Device Comparison Table
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 System Characteristics
    8. 7.8 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power-Good Flag Output
      2. 8.3.2 Enable and Start-up
      3. 8.3.3 Current Limit and Short Circuit
      4. 8.3.4 Undervoltage Lockout and Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Auto Mode
      2. 8.4.2 Forced PWM Operation
      3. 8.4.3 Dropout
      4. 8.4.4 Minimum Switch On-Time
      5. 8.4.5 Spread Spectrum Operation
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Ground and Thermal Considerations
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Support Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

说明

LMR34215-Q1 稳压器是一款易于使用的同步降压直流/直流转换器。该器件具有集成高侧和低侧功率 MOSFET,可在 4.2V 至 42V 的宽输入电压范围内提供输出电流。

LMR34215-Q1 采用峰值电流模式控制机制来提供出色的效率和输出电压精度。精密使能支持直接连接到宽输入电压或对器件启动和关断进行精确控制,因此提供了灵活性。附带内置滤波和延迟功能的电源正常状态标志可提供系统状态的真实指示,免去了使用外部监控器的麻烦。

器件信息
器件型号 封装(1) 封装尺寸(标称值)
LMR34215-Q1 VQFN-HR (12) 2.00mm x 3.00mm
如需了解所有可用封装,请参阅数据表末尾的可订购米6体育平台手机版_好二三四附录。
GUID-BF067918-4880-4310-A9F6-A39594BF1C56-low.gif
GUID-1425835E-EFDC-4DB6-9D90-4E6A83D22406-low.gif简化版原理图