Other Parts Discussed in Thread: TPS65251 , LM3880 Hi,
I will use LM3880 for power sequencing of all 3 outputs of TPS65251. I also need to use PGOOD output of TPS65251 to reset my CPU. According to TPS65251 datasheet :
"The PGOOD pin is pulled low when…
Other Parts Discussed in Thread: TPS65251 I have two questions about the TPS65251:
1) What is the ramp up and ramp down time on the TPS65251 power outputs ( or definable min and max )? I see that I can set the soft-start time in the datasheet page 15…
Other Parts Discussed in Thread: TPS65279 , TPS65251 Hi all,
A customer has a question about the TPS65279 and features associated with its PGOOD and EN pins. Data related to the questions have been shown on datasheets for similar parts, but not on the 65279…
Other Parts Discussed in Thread: TPS65251 , TPS65251EVM I purchased a TPS65251EVM eval board for verification of this part for a new design, but I’m not measuring efficiencies anywhere near what’s show in the TPS65251 datasheet.
For example…
Other Parts Discussed in Thread: TPS65251 Hi team,
Here is a question from one of my customers seeking to better understand the TPS65251's internal operation and compensation:
1) I'm looking for a more detailed block diagram or any additional information…
Other Parts Discussed in Thread: TPS65251 Our customer will use TPS65251 Device.
Our customer has below question.
If see datasheet, TPS65251 device has SS(Soft start) function.
Purple : Enable Signal / Green : Buck 1 Output
Our customer did use 4.7nF in…
Other Parts Discussed in Thread: TPS65251 dear Sir...
we had question to TPS65251's operation condition.
if we did disconnect the 1 Vin line,
it can good operation about remain 2 output...
As long as the continuous loading on Buck 1 is 3A or below, TPS65251 can be used to generate the listed supplies. Using the supplied graphs from the data sheet to over estimate thermal dissapation (1.8 instead of 1.5, 1.2 instead of 1) show that the package…
Other Parts Discussed in Thread: TPS65251 , TPS65253 Hi ,
One of our customer is developing a hand held POS based on TPS65251 PMIC and rail are follows ........ customer is not getting the efficiency in Light load . how we have to increase the efficien…
Other Parts Discussed in Thread: TPS65251 I have an application for the TPS65251 in which I am generating 3.3V on Buck 1 and 1.8V and 1.2V on Buck 2 & 3. My power sequencing requirements are:
1.) 1.2V
2.) 1.8V & 3.3V
I noticed the datasheet…
