Part Number: TPS62843 Tool/software: When input voltage drops to the same level as output voltage, the duty cycle is 100% and output = input. My question is, what if the input drops a little lower (say by 100mV) - does output follow the input, or buck…
Part Number: TPS62843 Tool/software: Hello-- I recently created a prototype design using a TPS628438 buck configured for 1.8V output (see schematic and layout attached). Upon first application of ~3.6V to the input with the pushbutton held down, ~30%…
Part Number: TPS62843 Tool/software: Hey!
I see datasheet the -7 and -8 version can output 1.8V
If I wanted highest efficiency possible, which version should I pick? Same question applies to 0.8vout with the -6 vs. -7 version
Thank you!
Part Number: TPS62843 Dear Team,
We are using TPS628438YKAR for project , however the surface belongs to fiber molding.
In case the fiber so that AOI manufacturing is tough to identify where pin1 should it be after SMT IR reflow.
Do you have any suggestion…
Hello Minghan,
Apologies for the delay response.
Minghan Dong said: You mean add a 1mF cap in parallel with the digital meter as shown below?
Yes, your understanding is correct.
Minghan Dong said: Could you kindly explain why this approach will smooth the…
Hi David,
I was OoO for a couple of days and hence the delay to reply.
For TPSM828301, I ch ecked with the designer and here's the feedback. In theory, this method should work but it is not a recommended method because it will probably result in positive…
Part Number: TPS62843 Hi,
I use the buck TPS628438 to transform a 5.4V input to 3.0V. Input comes from a 0.47F super capacitor, so rises very slowly. I would like to enable the buck when I reach around 3.3V/3.5V, to be sure to have 3.0V at the buck output…
Part Number: TPS62843 Hello,
I wonder if a resistor is needed between VIN and EN, since internal FET driven by UVLO/Thermal Shutdown will pull the line directly to GND in case of failure event:
In typical application shown in WEBENCH, VIN and EN are…
Part Number: TPS62843
Hi Team,
below are several questions.
1. can TPS62843x support 2.2uH inductor? Or it can only support 1uH as datasheet mentioned. If it can support 2.2uH, will eff be improved?
2. If Vout is higher than Vin, that is, there is power…
Part Number: TPS62843 Hi Team,
below are several questions.
1. is there line regulation accuracy on Vout?
2. is there load regulation accuracy on Vout?
3. in datasheet, there is load transient test, what's the slew rate of load change, 1A/us?
Thanks…
