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TPS7B6733-Q1, TPS7B6701-Q1 question



Hello,

 

Pease answer following question from customer.

 

Q1:

Datasheet Electrical Characteristics condition is Tj=-40C to 150 as follows, and don’t have “Typical values are at T A = 25°C.”

                       

Is this mean that Tj=-40C to 150? is applied to all typical value?

 

Q2:

Please advise the operation when Vin < 4V.

Datasheet specify Vi=4V to 40V when Vo=3.3V.


 

Please confirm if following my understanding about operation while Vin < 4V is correct.

 

1)    “Vi = 4V” to “Vi > 3.3V + Vdo(0.5V max)”

TPS7B6733-Q1 can output 3.3V but can’t meet specified accuracy

 

2) “Vi < 3.3V + Vdo(0.5V max)” to “Vi = UVLO”

Dropout operation and Vo = Vi – Vdo.

 

2)    Vi < UVLO

Vo = 0V

 

Q3:

Please advise internal reference accuracy of TPS7B6701-Q1 at -40C to 125C.

Datasheet has following specification and has note (1).


(1) External resistor divider variation is not considered.

 

According to note (1), is this accuracy (+/-2% max) is for reference accuracy of adjustable TPS7B6701-Q1?

 

If it is true, what is Vo accuracy of fixed TPS7B6733-Q1?

 

Best Regards.