SLVS719G June   2008  – January 2015 TL1963A

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Typical Characteristics
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Overload Recovery
      2. 9.3.2 Output Voltage Noise
      3. 9.3.3 Protection Features
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Output Capacitance and Transient Response
    2. 10.2 Typical Applications
      1. 10.2.1 Adjustable Output Operation
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
          1. 10.2.1.2.1 Fixed Operation
        3. 10.2.1.3 Application Curve
      2. 10.2.2 Paralleling Regulators for Higher Output Current
        1. 10.2.2.1 Design Requirements
        2. 10.2.2.2 Detailed Design Procedure
        3. 10.2.2.3 Application Curve
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
    3. 12.3 Thermal Considerations
      1. 12.3.1 Calculating Junction Temperature
  13. 13Device and Documentation Support
    1. 13.1 Related Links
    2. 13.2 Trademarks
    3. 13.3 Electrostatic Discharge Caution
    4. 13.4 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

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1 Features

  • Optimized for Fast Transient Response
  • Output Current: 1.5 A
  • Dropout Voltage: 340 mV
  • Low Noise: 40 μVRMS (10 Hz to 100 kHz)
  • 1-mA Quiescent Current
  • No Protection Diodes Needed
  • Controlled Quiescent Current in Dropout
  • Fixed Output Voltages: 1.5 V, 1.8 V, 2.5 V, 3.3 V
  • Adjustable Output from 1.21 V to 20 V (TL1963A Only)
  • Less Than 1-μA Quiescent Current in Shutdown
  • Stable With 10-μF Ceramic Output Capacitor
  • Reverse-Battery Protection
  • Reverse-Current Protection

2 Applications

  • Industrial
  • Wireless Infrastructure
  • Radio-Frequency Systems
  • 3.3-V to 2.5-V Logic Power Supplies
  • Post Regulator for Switching Supplies

3 Description

The TL1963A-xx devices are low-dropout (LDO) regulators optimized for fast transient response. The device can supply 1.5 A of output current with a dropout voltage of 340 mV. Operating quiescent current is 1 mA, dropping to less than 1 μA in shutdown. Quiescent current is well controlled; it does not rise in dropout as with many other regulators. In addition to fast transient response, the TL1963A-xx regulators have very low output noise, which makes them ideal for sensitive RF supply applications.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TL1963A SOT (6) 6.50 mm × 3.50 mm
TO-263 (5) 10.16 mm × 8.42 mm
TL1963A-15 SOT (6) 6.50 mm × 3.50 mm
SOT (4)
TO-263 (5) 10.16 mm × 8.42 mm
TL1963A-18 SOT (6) 6.50 mm × 3.50 mm
SOT (4)
TO-263 (5) 10.16 mm × 8.42 mm
TL1963A-25 SOT (6) 6.50 mm × 3.50 mm
SOT (4)
TO-263 (5) 10.16 mm × 8.42 mm
TL1963A-33 SOT (6) 6.50 mm × 3.50 mm
SOT (4)
TO-263 (5) 10.16 mm × 8.42 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

simpschematic_slvs719.gif

Dropout Voltage vs Output Current

vdo_iout_lvs719.gif