Part Number: TPS54478 Hi, I'm currently using TPS54478 with input voltage, Vin=3.3V stepping down to output voltage, Vout=1.2V, designed with maximum output current, Iout_max=1.2A. I'm conducting startup/shutdown test on this buck by enabling/disabling…
Part Number: TPS54478 Hello,
When I use to WEBENCH Design simulated TPS54478 load transient simulation ,I find load transient result is poor .as below picture1.but for Bode plot result is good(Gain margin is -33.05) ,as below picture 2.
I don't why…
Part Number: TPS54478 Team,
Is it possible to control two TPS54478 units on EN from one TPS54478's PGOOD? Wouldn't be the current from two enables to one power good too high? Can´t find the current or voltage flows from EN in datasheet.
…
Part Number: TPS54478 Hi,
Would you answer these questions:
- Is the part CMOS or bipolar
- Have you done electrical latch up testing
- Do you have any radiation test data on the part?
thanks
Munir
Part Number: TPS54478 Hi
There is a Vin supply current data on the datasheet.
What is the condition of this data? (Vout and frequency and Iload)
Regards,
Koji Hamamoto
Part Number: TPS54478 Hello,
To calculate the power dissipation, one customer is asking for the gate capacitance of high-side and low-side FETs of buck converter inside.
Can someone provide this information?
Thanks
Other Parts Discussed in Thread: TPS54478 Hi
We have a problem(EOS/ESD between VIN-PH) for TPS54478 at customer's module when the output is shorted.
The waveform of VIN voltage is different in two samples which was shorted between VIN-PH.
(The both…
Other Parts Discussed in Thread: TPS54478 Hello,
My customer has a question about TPS54478.
[Q]
What does C3 of Figure 35(datasheet p.22) implement it for?
Is this necessary?
Regards,
Hiroshi Katsunaga
Hello Ziriu,
TPS54418/TPS54618/TPS54519/TPS54719/TPS54478/TPS54678 are pin-to-pin compatible.
Be careful though, TPS54418/TPS54618 has a 0.8V Vref compared to the other devices. So they would not be BOM to BOM compatible.
What exactly are you looking…
Part Number: TPS53321 Other Parts Discussed in Thread: TPS62866 , TPS62869 , TPS54478 , TPS62826A Hi sirs,
My customer would like to estimate TPS53321 efficiency, however, only high/low side Rds_on on data sheet. This device is not in Webench. Is there…