TPS62901: Line / Load regulation

Michiaki Tanii

Expert 4610 points

Part Number: TPS62901

Hi team,

Our customer wants line / load regulation in below conditions

Vin 5V
Output 1.2V / 60mA and 2.5V / 64mA
L 2.2uH

Thank you and best regards,

Michiaki

over 4 years ago

0 Amod Vaze over 4 years ago

TI__Mastermind 26780 points

Michiaki,

Line and load regulation will change with external components and PCB layout. We can possibly get the numbers for the EVM here. Can you specify if the mode of operation if PWM or PFM/PWM and at what switching frequency setting (1MHz/2.5MHz)?

Thanks,
Amod

0 Michiaki Tanii over 4 years ago in reply to Amod Vaze

TI__Expert 4610 points

Hi Amod,

Here is their configuration

Mode Auto PFM/PWM with AEE
FSW 2.5MHz
Please see the below for their configuration

Thank you and best regards,

Michiaki

0 Amod Vaze over 4 years ago in reply to Michiaki Tanii

TI__Mastermind 26780 points

Thanks Michiaki. My colleague Nancy will check internal measured data to see if we can find the load/line regulation for this case.

Thanks,

Amod

0 Nancy Zhang over 4 years ago

TI__Mastermind 49440 points

Hi Michiaki,

For Load regulation, we only have 5Vin, 1.2V/0A-100mA curve as below. We don't have 2.5V/64mA test data available. But it should be similar to 1.2V.

For line regulation, we only have 3.3V test data as below. 1.2V and 2.5V should have similar performance.

Thanks,

Nancy

Power management

Power management forum

TPS62901: Line / Load regulation