ZHCSR75 November   2022 TPSM82902

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 Mode Selection and Device Configuration (MODE/S-CONF)
      2. 7.3.2 Adjustable VO Operation (External Voltage Divider)
      3. 7.3.3 Setable VO Operation (VSET and Internal Voltage Divider)
      4. 7.3.4 Soft Start/Tracking (SS/TR)
      5. 7.3.5 Smart Enable with Precise Threshold
      6. 7.3.6 Power Good (PG)
      7. 7.3.7 Undervoltage Lockout (UVLO)
      8. 7.3.8 Current Limit And Short Circuit Protection
      9. 7.3.9 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Pulse Width Modulation (PWM) Operation
      2. 7.4.2 AEE (Automatic Efficiency Enhancement)
      3. 7.4.3 Power Save Mode Operation (Auto PFM/PWM)
      4. 7.4.4 100% Duty-Cycle Operation
      5. 7.4.5 Output Discharge Function
      6. 7.4.6 Starting into a Pre-Biased Load
  8. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application with Adjustable Output Voltage
      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 Programming the Output Voltage
        3. 8.2.2.3 Capacitor Selection
          1. 8.2.2.3.1 Output Capacitor
          2. 8.2.2.3.2 Input Capacitor
          3. 8.2.2.3.3 Soft-Start Capacitor
        4. 8.2.2.4 Tracking Function
      3. 8.2.3 Application Curves
    3. 8.3 Typical Application with Setable VO Using VSET
      1. 8.3.1 Design Requirements
      2. 8.3.2 Detailed Design Procedure
      3. 8.3.3 Application Curves
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
        1. 8.5.2.1 Thermal Considerations
  9. Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 第三方产品免责声明
      2. 9.1.2 Development Support
        1. 9.1.2.1 Custom Design With WEBENCH® Tools
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 术语表
  10. 10Mechanical, 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

TPSM82902 是一款高效、小巧、灵活且易用的同步降压直流/直流转换器 MicroSiP 封装模块。2.5MHz 或 1.0MHz 的可选开关频率支持使用小型元件,并提供快速瞬态响应。该器件利用 DCS-Control 拓扑支持 ± 1% 的高 VOUT 精度。3V 至 17V 的宽输入电压范围支持各种标称输入,例如 12V 电源轨、单节或多节锂离子电池、5V 或 3.3V 电源轨。

TPSM82902 可在轻负载时自动进入省电模式(如果选择了自动 PFM/PWM)以保持高效率。此外,为了在非常小的负载下提供高效率,该器件具有 4µA 的低典型静态电流。AEE(如果启用)可在 VIN、VOUT 和负载电流范围内提供高效率。该器件包含一个 MODE/Smart-CONF 输入,用来设置内部/外部分压器、开关频率、输出电压放电和自动省电模式或强制 PWM 操作。

该器件采用小型 11 引脚 MicroSiP 封装,尺寸为 3.0mm × 2.8mm × 1.6mm,带有集成 1μH 电感器。

封装信息
器件型号封装(1)封装尺寸(标称值)
TPSM82902SIS (uSiP, 11)3.00mm × 2.80mm
如需了解所有可用封装,请参阅数据表末尾的可订购产品附录。
GUID-20210304-CA0I-QC60-8SD3-JRQDSJ5KNBX1-low.gif简化版原理图


效率与输出电流间的关系(频率为 2.5MHz 时 VO 为 1.2V,自动 PFM/PWM)