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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3 Description

The TL1963A-xx regulators are low-dropout (LDO) regulators provides a robust, easy-to-use power management design for wide variety of applications. The device 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. In addition, TL1963A-xx also supports tighter output accuracy ±1.5% across line, load and temperature (for DCQ, KTT package of new chip), fast transient response, and low output noise (23μVRMS in unity-gain adjustable configuration), making it an excellent choice for sensitive RF supply applications.

The TL1963A-xx regulators are stable with output capacitor as low as 10μF and supports ESR range up-to 3Ω. The TL1963A-xx (both legacy chip and new chip) has built-in protection mechanism for over-current, over-temperature (thermal shutdown) and reverse-current protection for reliable operation of the LDO and the legacy chip of TL1963A-xx also includes reverse-battery protection.

The TL1963A-xx is available in a 6.50mm × 7.0mm, 4-pin SOT-223 (DCY) [only fixed], 6.50mm × 7.06mm, 6-pin SOT-223 (DCQ) and 10.16mm × 15.24mm, 5-pin DDPAK/TO-263 (KTT) package for fixed and adjustable outputs.

Package Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2)
TL1963A-xx DCY (SOT-223, 4) 6.50mm × 7.00mm
DCQ (SOT-223, 6) 6.50mm × 7.06mm
KTT (DDPAK/TO-263, 5) 10.16mm × 15.24mm
(1) For all available packages, see the orderable addendum at the end of the datasheet.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
TL1963A TL1963A-15 TL1963A-18 TL1963A-25 TL1963A-33 Typical Application Typical Application