SLVU944B October   2015  – October 2020 TPS7H1101-SP

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Related Documentation
  3. 2Description
  4. 3Test Setup
    1. 3.1 Equipment
      1. 3.1.1 Power Supplies
      2. 3.1.2 Load Number 1
      3. 3.1.3 Meters
      4. 3.1.4 Oscilloscope
    2. 3.2 Bench Test Setup Conditions
      1. 3.2.1 Headers Description and Jumper Placement
      2. 3.2.2 Testing
    3. 3.3 Power-Up Procedure
      1. 3.3.1  IOUT and VOUT Measurements
      2. 3.3.2  Output Current Limiting
      3. 3.3.3  High-Side Current Sense
      4. 3.3.4  Current Foldback
      5. 3.3.5  Power Good
      6. 3.3.6  Dropout Voltage
      7. 3.3.7  Transient Response
      8. 3.3.8  Current Sharing
      9. 3.3.9  Soft-Start
      10. 3.3.10 Enable and Disable
      11. 3.3.11 Turn-Off
  5. 4Board Layout
    1. 4.1 EVM Layout Flexibility
  6. 5Schematic and Bill of Materials
  7.   Revision History

3.3.7 Transient Response

Waveforms below indicate the transient response behavior of the LDO for 50% step load change.

Channel 1: Output voltage overshoot / undershoot

Channel 2: Step load in current

Channel 3: Input voltage

GUID-02E20449-364F-4651-BAF4-A791F960BAD6-low.gif Figure 3-7 Load Transient Response: Step Load 0.1 A to 1.6 mA
GUID-733B3260-6937-4180-9133-6823F9708300-low.gif Figure 3-8 Expanded View Overshoot
GUID-39D941F2-CD54-4A8B-BD3C-F7A1ADC35157-low.gif Figure 3-9 Expanded View Undershoot