Both parts are listed as EMI tested in the TI product selector. However EMI test data is limited or non-existent in datasheets:
1) LMZ21701: There are 2 EMI graphs (Fig 10 and 11) at Vin = 12V, Vout = 3.3V @1A.
- Is LMZ21701 OK for 12V-to-6V @1A in terms of Class B limits with higher input current?
- Shown EMI performance is based on eval board layout and cap values, correct?
- The inductor is non-shielded, right?
2) LMZ20502: Again, the integrated inductor is non-shielded, right? Any EMI data on LMZ20502 and recommended component values and layout in the datasheet for the following cases?
- Vin = 5V, Vout = 3.3V @2A, should be the worst case.
- Vin = 5V, Vout = 1.8V @2A
- Vin = 5V, Vout = 1.0V @2A
Thanks.