ZHCSUB8V June   1976  – February 2025

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: UA78M33 (Both Legacy and New Chip)
    6. 5.6  Electrical Characteristics: UA78M05 (Both Legacy and New Chip)
    7. 5.7  Electrical Characteristics: UA78M06C (Legacy Chip Only)
    8. 5.8  Electrical Characteristics: UA78M08C (Legacy Chip Only)
    9. 5.9  Electrical Characteristics: UA78M09 (Both Legacy and New Chip)
    10. 5.10 Electrical Characteristics: UA78M10  (Both Legacy and New Chip)
    11. 5.11 Electrical Characteristics: UA78M12  (Both Legacy and New Chip)
    12. 5.12 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Current Limit
      2. 6.3.2 Dropout Voltage (VDO)
      3. 6.3.3 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Dropout Operation
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Input and Output Capacitor Requirements
        2. 7.2.2.2 Power Dissipation (PD)
        3. 7.2.2.3 Estimating Junction Temperature
        4. 7.2.2.4 External Capacitor Requirements
        5. 7.2.2.5 Overload Recovery
        6. 7.2.2.6 Reverse Current
        7. 7.2.2.7 Polarity Reversal Protection
      3. 7.2.3 Application Curves
    3. 7.3 System Examples
      1. 7.3.1 Positive Regulator in Negative Configuration
      2. 7.3.2 Current Limiter Circuit
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
      2. 7.5.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Evaluation Module
      2. 8.1.2 Device Nomenclature
    2. 8.2 接收文档更新通知
    3. 8.3 支持资源
    4. 8.4 Trademarks
    5. 8.5 静电放电警告
    6. 8.6 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

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机械数据 (封装 | 引脚)
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7.2.3 Application Curves

uA78M VIN vs VOUT at TJ = 25°C (Legacy Chip)
VOUT = 5V
Figure 7-4 VIN vs VOUT at TJ = 25°C (Legacy Chip)
uA78M VIN vs VOUT at TJ = 25°C (New Chip)
VOUT = 3.3V
Figure 7-6 VIN vs VOUT at TJ = 25°C (New Chip)
uA78M Load Transient Behavior (New Chip)
VIN = 10V, VOUT = 5V, IOUT = 1mA to 100mA, dI/dt = 1A/μs, COUT = 0.1μF
Figure 7-8 Load Transient Behavior (New Chip)
uA78M VIN vs VOUT at TJ = 25°C (New Chip)
VOUT = 5V
Figure 7-5 VIN vs VOUT at TJ = 25°C (New Chip)
uA78M Line Transient Behavior (New Chip)
VO = 5V, dVIN/dt = 1V/μs, IOUT = 350mA, COUT = 0.1μF
Figure 7-7 Line Transient Behavior (New Chip)
uA78M Start-Up (New Chip)
VIN = 0V to 10V, VOUT = 5V, IOUT = 100mA, dVIN/dt = 1V/μs, COUT = 0.1μF
Figure 7-9 Start-Up (New Chip)