Hi,
I do need the design review for TPS54424 circuit.
Regulator | Design | Efficiency |
TPS54424 | 0.84V @ 2.5A | 85.12% |
TPS54424 | 1.8V @ 1.4A | 90.52% |
0.84V:
1.8V:
Kindly help with the design review of the same.
Regards,
Ranjana Naik
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Hi,
I do need the design review for TPS54424 circuit.
Regulator | Design | Efficiency |
TPS54424 | 0.84V @ 2.5A | 85.12% |
TPS54424 | 1.8V @ 1.4A | 90.52% |
0.84V:
1.8V:
Kindly help with the design review of the same.
Regards,
Ranjana Naik
Hi Ranjana,
Can you please share the WEBENCH design for these 2 applications?
Also, can you give us information on the following.
1. DC voltage tolerance (% or mV)
2. Output ripple requirement (% or mV)
3. Output transient (undershoot, overshoot) requirement (% or mV)
4. Transient load step size to meet transient (% or mV)
5. Max operating ambient temperature.
Regards,
Gerold
Hi Ranjana,
I have taken a brief look and everything looks as expected. I did not do any actual calculations for the component values but they look to be in the typical range. If you need help with calculating the values I suggest either WEBENCH or the equations in the apps section of the datasheet. If there is any specific challenges you need this design to meet let us know and I can help take a closer look.
Two component placeholders which would be good to add are:
Anthony
Hi Gerold,
1. DC voltage tolerance (% or mV) : 12V with +/- 5% tolerance
2. Output ripple requirement (% or mV) : less than 50mV
3. Max operating ambient temperature.: Max 30C
Webench design is as below:
https://webench.ti.com/appinfo/webench/scripts/SDP.cgi?ID=27B93B0CBD8CBC31
https://webench.ti.com/appinfo/webench/scripts/SDP.cgi?ID=B066439EB18630A7
Regards,
Ranjana