Part Number: TPS54A20 Hi, TI expert
How many variables have you substituted for each of the inductor equations (4)?
K(IND) = 0.4 , Vout = ?, Vin = ?, Iout = ?, Fsw = ?
Best regards.
Part Number: TPS54A20 Hi, TI expert Why do you recommend a pullup resistor between the values of 10kΩ and 100kΩ ?
When connected to VG+, I think that the voltage value obtained by dividing 5V with the internal resistance of the PGOOD pin and…
Hi Tahar,
Sorry for the delay.
I tested with two 220nH inductors (IHLP1212AEER22M1) and a 2.2uF capacitor for SCAP.
The power supply does not work anymore with these modifications.
Because I monitor the power regulator output and the enable of the power…
Part Number: TPS54A20 Hello, TI expert.
I want to know whitch parameter is more dominant, RTON or RBOT & RTOP ?
1 Does the output voltage change when the value of the resistor RTON attached to the TON pin changes? → When Vout is 1.25, RTON = 21…
Part Number: TPS54A20 Hi TI Experts,
I would like to know how to choose the Series Capacitor Selection of Buck converter.
In this document, it uses SPEIC to calculate the Series Capacitor. but don't mention the buck converter.
https://www.ti.com/lit…
Part Number: TPS54A20 Hi experts,
Last time I asked the question about the small signal model of the power stage.
and I get a response from the Tier, he said the power stage is the same as the traditional buck converter, is this correct?
https://e2e…
Part Number: TPS54A20 Hi team,
I measured the Bode-plot of the TPS54A20EVM, but the waveform does not look like the data sheet unless the injection level is 50mV or more.
What is the correct injection level?
Best Regards,
Part Number: TPS54A20 Hi, TI expert
Am I correct in my understanding that the SYNC pin can drive DCDC at 3.6-4.4, 6.3-7.7, 9-11MHz by providing a signal greater than 2V peak at that frequency?
Or should I supply half that frequency?
Also, I don't think…
Part Number: TPS54A20 Hi experts,
I have a question about the series capacitor buck converter.
is the small signal model the same as the traditional buck converter?
I try to find the TI-related document, but there is no document talking about that.
…
Part Number: TPS54A20
Hello,
As TPS54A20 is a high frequency buck converter - 10MHz, is there a higher chance for failure of the output X5R or X7R capacitor in long term use (couple of years for example)? How should be taken concern regarding the self…