SLVS719H June   2008  – June 2026 TL1963A

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: TL1963A (for DCQ, KTT package)
    6. 5.6 Electrical Characteristics: TL1963A (for DCY Package)
    7. 5.7 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 SHDN
      2. 6.3.2 Dropout Voltage
      3. 6.3.3 Undervoltage Lockout
      4. 6.3.4 Thermal Shutdown
      5. 6.3.5 Current Limit
      6. 6.3.6 Overload Recovery
      7. 6.3.7 Output Voltage Noise
      8. 6.3.8 Protection Features
        1. 6.3.8.1 For Legacy Chip Only
        2. 6.3.8.2 For Both Legacy and New Chip
    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 Input/Output Capacitance and Transient Response
      2. 7.1.2 Reverse Current
      3. 7.1.3 Feed-Forward Capacitor
      4. 7.1.4 Estimating Junction Temperature
      5. 7.1.5 Power Dissipation (PD)
    2. 7.2 Typical Applications
      1. 7.2.1 Kelvin Sense Connection with SENSE pin
      2. 7.2.2 Design Requirements
      3. 7.2.3 Detailed Design Procedure
      4. 7.2.4 Application Curve
      5. 7.2.5 Paralleling Regulators for Higher Output Current (Legacy chip only)
        1. 7.2.5.1 Design Requirements
        2. 7.2.5.2 Detailed Design Procedure (Legacy chip only)
        3. 7.2.5.3 Application Curve
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
      3. 7.4.3 Thermal Considerations
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
      2. 8.1.2 Device Nomenclature
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

6.1 Overview

The TL1963A-xx series are 1.5A low-dropout regulators optimized for fast transient response. The devices can supply 1.5A of output current with a dropout voltage of 340mV (typical) and supports wide output range (from 1.21V to 20V) in adjustable configuration. Very low dropout, wider output range and fast transient performance makes these devices an excellent choice for supplying power to variety of power-hungry applications. In addition to the low quiescent current, the TL1963A-xx regulators (both legacy and new chip) incorporate several protection features such as over current, over temperature (thermal shutdown) and reverse current protection. In battery-backup applications where the output is held up by a backup battery when the input is pulled to ground, the TL1963A-xx acts as if it has a diode in series with the output and prevents reverse-current flow. The legacy chip of TL1963A-xx also includes reverse-battery protection.