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

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1 Features

  • Input voltage range: 2.4V to 20V
  • Output voltage range (adjustable): 1.21V to 20V
  • Output voltage range (fixed):
    • Legacy chip: 1.5V, 1.8V, 2.5V and 3.3V
    • New chip: 1.8V, 3.3V
  • Output accuracy (over line, load and temperature):
    • Legacy chip: ±3% (all packages)
    • New chip:
      • +3%/-2% (DCY only)
      • ±1.5% (DCQ and KTT only)
  • Maximum output current (IOUT): Up to 1.5A
  • Dropout voltage: 340mV (typical) for IOUT = 1.5A
  • Output capacitor for stable operation: ≥ 10μF with ESR ≤ 3Ω
  • Low noise: 23μVRMS (10Hz to 100kHz) for VOUT = 1.21V
  • Integrated fault protection:
    • Reverse-current, thermal shutdown and overcurrent protection (both legacy and new chip)
    • Reverse-battery protection (legacy chip only)
  • Package:
    • 4-pin SOT-223 (DCY)
    • 6-pin SOT-223 (DCQ)
    • 5-pin DDPAK/TO-263 (KTT)