ZHCSJB0D January   2019  – July 2021 TPS61022

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. Pin Configuration and Functions
  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 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Undervoltage Lockout
      2. 7.3.2 Enable and Soft Start
      3. 7.3.3 Switching Frequency
      4. 7.3.4 Current Limit Operation
      5. 7.3.5 Pass-Through Operation
      6. 7.3.6 Overvoltage Protection
      7. 7.3.7 Output Short-to-Ground Protection
      8. 7.3.8 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Forced PWM Mode
      2. 7.4.2 Power-Save Mode
  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 Setting the Output Voltage
        2. 8.2.2.2 Inductor Selection
        3. 8.2.2.3 Output Capacitor Selection
        4. 8.2.2.4 Loop Stability, Feedforward Capacitor Selection
        5. 8.2.2.5 Input Capacitor Selection
      3. 8.2.3 Application Curves
    3. 8.3 System Examples
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 第三方产品免责声明
    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 Electrostatic Discharge Caution
    6. 11.6 术语表
  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

特性

  • 输入电压范围:0.5V 至 5.5V
  • 启动时的最小输入电压为 1.8V
  • 输出电压设置范围:2.2V 至 5.5V
  • 两个 12mΩ (LS)/18mΩ (HS) MOSFET
  • 8A 谷值开关电流限制
  • VIN = 3.6V、VOUT = 5V 且 IOUT = 3A 时效率为 94.7%
  • VIN > 1.5V 时开关频率为 1MHz,VIN < 1V 时开关频率为 0.6MHz
  • 在 –40°C 至 +125°C 温度范围内,基准电压精度为 ±2.5%
  • 轻负载运行时引脚可选自动 PFM 工作模式或强制 PWM 工作模式
  • VIN > VOUT 时切换为直通模式
  • 在关断期间真正断开输入域输出之间的连接
  • 输出过压和热关断保护
  • 输出短路保护
  • 2mm × 2mm VQFN 7 引脚封装