ZHCSU09I July   2004  – February 2025 LP2981 , LP2981A

PRODUCTION DATA  

1.   1
2. 1 特性
3. 2 應用
4. 3 說明
5. 4 Pin Configuration and Functions
6. 5 Specifications
   1. 5.1 Absolute Maximum Ratings
   2. 5.2 ESD Ratings
   3. 5.3 Recommended Operating Conditions
   4. 5.4 Thermal Information
   5. 5.5 Electrical Characteristics
   6. 5.6 Typical Characteristics
7. 6 Detailed Description
   1. 6.1 Overview
   2. 6.2 Functional Block Diagrams
   3. 6.3 Feature Description
      1. 6.3.1 Output Enable
      2. 6.3.2 Dropout Voltage
      3. 6.3.3 Current Limit
         1. 6.3.3.1 Current Limit (Legacy Chip)
         2. 6.3.3.2 Current Limit (New Chip)
      4. 6.3.4 Undervoltage Lockout (UVLO)
      5. 6.3.5 Thermal Shutdown
      6. 6.3.6 Output Pulldown
   4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Dropout Operation
      3. 6.4.3 Disabled
8. 7 Application and Implementation
   1. 7.1 Application Information
      1. 7.1.1 Recommended Capacitor Types
         1. 7.1.1.1 Recommended Capacitors (Legacy Chip)
            1. 7.1.1.1.1 Tantalum Capacitors
            2. 7.1.1.1.2 Ceramic Capacitors
            3. 7.1.1.1.3 Aluminum Capacitors
         2. 7.1.1.2 Recommended Capacitors (New Chip)
      2. 7.1.2 Input and Output Capacitor Requirements
         1. 7.1.2.1 Input Capacitor
         2. 7.1.2.2 Output Capacitor
            1. 7.1.2.2.1 Output Capacitor (Legacy Chip)
            2. 7.1.2.2.2 Output Capacitor (New Chip)
      3. 7.1.3 Estimating Junction Temperature
      4. 7.1.4 Power Dissipation (PD)
      5. 7.1.5 Reverse Current
   2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
         1. 7.2.2.1 ON and OFF Input Operation
      3. 7.2.3 Application Curves
   3. 7.3 Power Supply Recommendations
   4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
9. 8 Device and Documentation Support
   1. 8.1 Device Nomenclature
   2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
   3. 8.3 Receiving Notification of Documentation Updates
   4. 8.4 支持資源
   5. 8.5 Trademarks
   6. 8.6 靜電放電警告
   7. 8.7 術語表
10. 9 Revision History
11. 10Mechanical, Packaging, and Orderable Information

LP2981x 采用 SOT-23 封裝的 100mA 低壓降穩壓器

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