SLVS915D February   2010  – June 2025 TPS73801

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
    6. 5.6 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 Adjustable Operation
      2. 6.3.2 Fixed Operation
      3. 6.3.3 Overload Recovery
      4. 6.3.4 Output Voltage Noise
      5. 6.3.5 Protection Features
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Output Capacitance and Transient Response
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curve
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Thermal Considerations
          1. 7.4.1.1.1 Calculating Junction Temperature
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Support Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

3 Description

The TPS73801 is a low-dropout (LDO) regulator optimized for fast transient response. The device can supply 1.0A of output current with a dropout voltage of 300mV. Operating quiescent current is 1mA, dropping to less than 1μA in shutdown. Quiescent current is well controlled and does not rise in dropout, which occurs with many other regulators. In addition to fast transient response, the TPS73801 regulators have very low output noise, which makes them designed for sensitive RF supply applications.

Output voltage range is from 1.21V to 20V. The TPS73801 regulators are stable with output capacitors as low as 10µF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The devices are available as an adjustable device with a 1.21V reference voltage. The TPS73801 regulators are available in the 6-pin TO-223 (DCQ) packages.

Package Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2)
TPS73801 DCQ (SOT-223, 6) 6.5mm × 7.06mm
(1) For more information, see the Mechanical, Packaging, and Orderable Information.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
TPS73801 Simplified Application Simplified Application