SLVS537C June   2004  – May 2025 UA78M-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  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: UA78M33Q (Both Legacy and New Chip)
    6. 5.6 Electrical Characteristics: UA78M05Q (Both Legacy and New Chip)
    7. 5.7 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 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 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 Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Evaluation Module
      2. 8.1.2 Device Nomenclature
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

7.2.3 Application Curves

uA78M-Q1 VIN vs VOUT at TJ = 25°C (M3 version)
VOUT = 5V
Figure 7-4 VIN vs VOUT at TJ = 25°C (M3 version)
uA78M-Q1 Line Transient Behavior (M3 version)
VO = 5V, dVIN/dt = 1V/μs, IOUT = 350mA, COUT = 0.1μF
 
Figure 7-6 Line Transient Behavior (M3 version)
uA78M-Q1 Start-Up (M3 version)
VIN = 0V to 10V, VOUT = 5V, IOUT = 100mA, dVIN/dt = 1V/μs, COUT = 0.1μF
Figure 7-8 Start-Up (M3 version)
uA78M-Q1 VIN vs VOUT at TJ = 25°C (M3 version)
VOUT = 3.3V
Figure 7-5 VIN vs VOUT at TJ = 25°C (M3 version)
uA78M-Q1 Load Transient Behavior (M3 version)
VIN = 10V, VOUT = 5V, IOUT = 1mA to 100mA, dI/dt = 1A/μs, COUT = 0.1μF
Figure 7-7 Load Transient Behavior (M3 version)