SLVK116 July   2022 TPS22919-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1Description of Test Setup
    1. 1.1 Test Conditions
    2. 1.2 Test Setup Photos
    3. 1.3 Pass or Fail Criteria
  4. 2Test Results
    1. 2.1 Conducted Emission (CE) Results
    2. 2.2 Radiative Emission (RE): 150 kHz to 30 MHz, Monopole Antenna
    3. 2.3 Radiative Emission (RE): 30 kHz to 200 MHz, Biconical Antenna
    4. 2.4 Radiative Emission (RE): 200 MHz to 1 GHz, Log Periodic Antenna
  5. 3Conclusion
  6. 4References

1 Description of Test Setup

A fully-compliant anechoic chamber and equipment is used for this testing and is carried out according to CISPR-25 test specifications.

For CE and RE measurements, an ultra-low-IQ LDO (TPS7B8250QKVURQ1) was used to step down the 12-V input supply (car battery) to 5-V, a voltage within the input voltage range of the load switch. The LDO has a maximum output current of 300-mA, hence the 200-mA maximum testing condition.