TPS735: PSRR without Cnr

Hirotsugu Kobayashi

Mastermind 8485 points

Part Number: TPS735

Hi team,

Do you have PSRR data without Cnr?

Best Regards,

over 2 years ago

0 Srikanth Lolla Venkata over 2 years ago

TI__Genius 12040 points

Hello Hirotsugu,

I will look into this and get back to you by the end of the day.

Regards,

Srikanth

0 Srikanth Lolla Venkata over 2 years ago in reply to Srikanth Lolla Venkata

TI__Genius 12040 points

Hello Hirotsugu,

It looks like we don't have the data you require. We could collect it and provide it for you. Could you tell us the test conditions (Vin, Vout, Cout, Iload) at which you require the Data?

Regards, Srikanth

0 Hirotsugu Kobayashi over 2 years ago in reply to Srikanth Lolla Venkata

Mastermind 8485 points

Hi Srikanth,

I would like the same conditions as in Fig. 8 of the data sheet.
Since TPS73533DRV is used, Vin is 3.8V, Vout is 3.3V, Cout is 2.2uF, Cnr is none, Iload is 1mA to 500mA.

Best Regards,

0 Srikanth Lolla Venkata over 2 years ago in reply to Hirotsugu Kobayashi

TI__Genius 12040 points

Hello Hirotsugu,

I will make this measurement on Monday and get back to you.

Regards,

Srikanth

+1 Srikanth Lolla Venkata over 2 years ago in reply to Srikanth Lolla Venkata

TI__Genius 12040 points

Hello Hirotsugu,

Please find attached the PSRR report showing the plots at ILoad of 1mA, 100mA, 200mA, 250mA and 500mA. I used a TPS735XXDRB unit mounted on the TPS73525EVM-276 EVM to make the measurement. I used R1 = 192KOhm, R2 = 110KOhm to obtain the required 3.3V Vout. CFF and Cin were not installed and Cout was 2.2uF. Please note that the Legend corresponding to 'Trace 1' and '1mA' are the same.

Regards,

Srikanth PSRR Vin 3.8V Vout 3.3V Cout 2.2uF Iload 1mA 100mA 200mA 250mA 500mA.pdf

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TPS735: PSRR without Cnr