ZHCSU12M March   2000  – June 2025 LP2982

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  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
      4. 6.3.4 Undervoltage Lockout (UVLO)
      5. 6.3.5 Output Pulldown
      6. 6.3.6 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Device Functional Mode Comparison
      2. 6.4.2 Normal Operation
      3. 6.4.3 Dropout Operation
      4. 6.4.4 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)
        2. 7.1.1.2 Recommended Capacitors (New Chip)
      2. 7.1.2 Input Capacitor Requirements
      3. 7.1.3 Output Capacitor Requirements
      4. 7.1.4 Noise Bypass Capacitor (CBYPASS)
      5. 7.1.5 Reverse Current
      6. 7.1.6 Power Dissipation (PD)
      7. 7.1.7 Estimating Junction Temperature
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 ON/ 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 器件和文档支持
    1. 8.1 器件命名规则
    2. 8.2 第三方产品免责声明
    3. 8.3 文档支持
      1. 8.3.1 相关文档
    4. 8.4 接收文档更新通知
    5. 8.5 支持资源
    6. 8.6 商标
    7. 8.7 静电放电警告
    8. 8.8 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

5.3 Recommended Operating Conditions

MIN NOM MAX UNIT
VIN Supply input voltage (for legacy chip) 2.1 16 V
Supply input voltage (for new chip) 2.5 16
VIN – VOUT Input-output differential (for legacy chip) 0.7 11
Input-output differential (for new chip) 0 16
VOUT Output voltage (for new chip) 1.2 5
VON/OFF Enable voltage (for legacy chip) 0 VIN
Enable voltage (for new chip) 0 16
IOUT Output current 0 50 mA
CIN(1) Input capacitor 1 µF
COUT Output capacitor (for legacy chip)  2.2 4.7
Output capacitance (for new chip) (1) 1 2.2 200
COUT ESR (2) Output capacitor ESR (for new chip) (3) 0 1 Ω
TJ Operating junction temperature –40 125 °C
(2) Maximum supported ESR range for new chip is 1Ω. For output capacitor with higher ESR values, place a low ESR MLCC capacitor.
(3) Details related to supported ESR range for the legacy chip are available in Recommended Capacitors (Legacy Chip).