TPS65265: Loop compensation values for 3.3V, 5V, 3.7V output voltage

Radhika r

Part Number: TPS65265

I am using TPS65265 with Vin=12V to get triple output voltage of 3.3V, 5V and 3.7V. Help me in choosing DC-DC loop compensation values for each of the output channel. schematic of same is attached.TPS65265.pdf

4 months ago

0 Aurora Tie 4 months ago

TI__Genius 9750 points

Hi，

I think is as same as below link. Because you use the same schematic. I have responded to below thread and will close this one. Thanks.

https://e2e.ti.com/support/power-management-group/power-management---internal/f/power-management---internal-forum/1331090/tps65265-customer-design-review/5071849#5071849

Aurora

0 Radhika r 4 months ago in reply to Aurora Tie

Prodigy 10 points

Hi,

The above link says Page not found. Please share link once again.

Regards,

Radhika

0 Aurora Tie 4 months ago in reply to Radhika r

TI__Genius 9750 points

Hi Radhika,

For inductors and compensations, my suggestions are shown below:

1. Change R23 to 21kohm (customers can choose similar values);

2. Change R29 to 16.4kohm, change C54 to 4.7nF;

3. Change R33 to 12kohm, change C60 to 6.8nF;

4. Change L3 to 5.6uH or 6.8uH;

5. Change L4 to 6.8uH or 8.2uH.

No other obvious problems. Thanks.

Aurora

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TPS65265: Loop compensation values for 3.3V, 5V, 3.7V output voltage