SLVSH48A May   2024  – September 2024 TPS7H1121-SP

PRODMIX  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Options
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Quality Conformance Inspections
    7. 6.7 Typical Characteristics
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Adjustable Output Voltage (Feedback Circuit)
      2. 8.3.2  Enable
      3. 8.3.3  Dropout Voltage VDO
      4. 8.3.4  Output Voltage Accuracy
      5. 8.3.5  Output Noise
      6. 8.3.6  Power Supply Rejection Ratio (PSRR)
      7. 8.3.7  Soft Start
      8. 8.3.8  Power Good (PG)
      9. 8.3.9  Stability
        1. 8.3.9.1 Stability
        2. 8.3.9.2 STAB Pin
      10. 8.3.10 Programmable Current Limit
      11. 8.3.11 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable / Disable
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Output Voltage Configuration
        2. 9.2.2.2 Output Voltage Accuracy
        3. 9.2.2.3 Enable Threshold
        4. 9.2.2.4 Soft Start Capacitor
        5. 9.2.2.5 Programmable Current Limit Resistor
        6. 9.2.2.6 Characterization of Overcurrent Events that Exceed Thermal Limits
        7. 9.2.2.7 Power Good Pull Up Resistor
        8. 9.2.2.8 Capacitors
          1. 9.2.2.8.1 Hybrid Output Capacitor Network
        9. 9.2.2.9 Frequency Compensation
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Support Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

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発注情報

7 Parameter Measurement Information

TPS7H1121-SP Dropout
A. VOUT(SET) is the configured output voltage of the regulator using the feedback resistors, VOUT(NOM) is the measured output voltage. VIN is set 2V above the output (limited to 14V maximum) and is decreased to the output voltage set point (VOUT(SET)). When VOUT falls to 98% of the nominal value (VOUT(NOM)), the dropout voltage is recorded.
Figure 7-1 Dropout
TPS7H1121-SP Line Regulation
A. ΔVOUT / ΔVIN = 100µV/V (typ). This means for a 1V change in VIN (ΔVIN = 1V), there will be a 100µV change in VOUT (ΔVOUT = 100µV). Line regulation is a DC parameter; therefore this waveform can only be considered valid after transients die out or for a slow VIN slew rate.
Figure 7-2 Line Regulation
TPS7H1121-SP Load Regulation
A. ΔVOUT / ΔIOUT = 4mV/A (typ). This means for a 1A change in IOUT (ΔIOUT = 1A), there will be a 4mV change in VOUT (ΔVOUT = 4mV). Load regulation is a DC parameter; therefore this waveform can be considered valid after transients die out or for a slow IOUT slew rate.
Figure 7-3 Load Regulation
TPS7H1121-SP Enable Propagation Delay Figure 7-4 Enable Propagation Delay
TPS7H1121-SP Soft Start Time Figure 7-5 Soft Start Time