TPS62424-Q1: SCH review

Hi Amelie,

Schematic looks okay to me. 

Is it possible to share information regarding customer end equipment?  

Best regards,

Tanvee

Thanks Tanvee.

This is for the front camera, to power the camera sensor.

Hi Tanvee,

During customer design, they have a question about timing.'

Because of the power timing problem (TPS62424 has a faster startup time, customer need the 2.9V LDO voltage output time to be faster than the startup time of the TPS62424), so customer needs a delay for TPS62424. So customer change SCH as following:

• Add res in EN PIN
• Whether need to add 0.1uf cap in EN PIN as the red arrow shows.

Hi Amelie,

RC circuit on enable pin help to add delay on start up. If they want precise delay then I would suggest  to follow below document.

https://www.ti.com/lit/an/slvaea3/slvaea3.pdf?ts=1623772368361&ref_url=https%253A%252F%252Fwww.google.com%252F

This documents help to calculate delay for enable for start up. 

Best regards,

Tanvee