SGLS247C September   2011  – December 2025 TPS763-Q1

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 Output Enable
      2. 6.3.2 Dropout Voltage
      3. 6.3.3 Current Limit
      4. 6.3.4 Output Pulldown
      5. 6.3.5 Thermal Shutdown
    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 Adjustable Device Feedback Resistors
      2. 7.1.2 Recommended Capacitor Types
        1. 7.1.2.1 Recommended Capacitors (Legacy Chip)
        2. 7.1.2.2 Recommended Capacitors (New Chip)
      3. 7.1.3 Input and Output Capacitor Requirements
        1. 7.1.3.1 Input Capacitor Requirements
        2. 7.1.3.2 Output Capacitor Requirements
      4. 7.1.4 Reverse Current
      5. 7.1.5 Feed-Forward Capacitor (CFF)
      6. 7.1.6 Power Dissipation (PD)
      7. 7.1.7 Estimating Junction Temperature
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Output Voltage Programming
      3. 7.2.3 Application Curves
    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 Power Dissipation and Junction Temperature
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Third-Party Products Disclaimer
    2. 8.2 Documentation Support
      1. 8.2.1 Device Nomenclature
      2. 8.2.2 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DBV|5
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.1.3.2 Output Capacitor Requirements

Like all low dropout regulators, the TPS763xx-Q1 requires an output capacitor connected between OUT and GND to stabilize the internal loop control. The minimum recommended capacitance value is 4.7μF and the ESR (equivalent series resistance) must be between 0.3Ω and 10Ω. Capacitor values of 4.7μF or larger are acceptable, provided the ESR is less than 10Ω. Solid tantalum electrolytic, aluminum electrolytic, and multilayer ceramic capacitors are all excellent choices, provided the requirements described above are met. Most of the commercially available 4.7μF surface-mount solid tantalum capacitors, including devices from Sprague, Kemet, and Nichico, meet the ESR requirements stated above.

Table 7-1 Capacitor Selection
PART NO. MANUFACTURER VALUE MAX ESR SIZE (H × L × W)
T494B475K016AS KEMET 4.7μF 1.5Ω 1.9 × 3.5 × 2.8
195D106x0016x2T SPRAGUE 10μF 1.5Ω 1.3 × 7.0 × 2.7
695D106x003562T SPRAGUE 10μF 1.3Ω 2.5 × 7.6 × 2.5
TPSC475K035R0600 AVX 4.7μF 0.6Ω 2.6 × 6.0 × 3.2
Curves are provided which show the stable ESR range as a function of load current (see Figure 7-1, Figure 7-2, Figure 7-3, and Figure 7-4).
TPS763-Q1 Typical Regions of Stability Compensation Series Resistance (CSR) vs Output Current (legacy chip)
Figure 7-1 Typical Regions of Stability Compensation Series Resistance (CSR) vs Output Current (legacy chip)
TPS763-Q1 Typical Regions of Stability Compensation Series Resistance (CSR) vs Added Ceramic Capacitance (legacy chip)
Figure 7-2 Typical Regions of Stability Compensation Series Resistance (CSR) vs Added Ceramic Capacitance (legacy chip)
TPS763-Q1 Typical Regions of Stability Compensation Series Resistance (CSR) vs Output Current (legacy chip)
Figure 7-3 Typical Regions of Stability Compensation Series Resistance (CSR) vs Output Current (legacy chip)
TPS763-Q1 Typical Regions of Stability Compensation Series Resistance (CSR) vs Added Ceramic (legacy chip)
Figure 7-4 Typical Regions of Stability Compensation Series Resistance (CSR) vs Added Ceramic (legacy chip)

Remember that capacitor tolerance and variation with temperature must be taken into consideration when selecting an output capacitor so that the minimum required amount of output capacitance is provided over the full operating temperature range. The output capacitor must be located not more than 1cm from the output pin and returned to a clean analog ground.

For the new chip, dynamic performance of the device is improved with the use of an output capacitor. Use an output capacitor within the range specified in the Recommended Operating Conditions table for stability.