Hi, Jordan
I review your schematic, it is okay, but layout is bad.
I think the issue is caused by bad layout, suggest place 30ea VIAs at thermal pad.
I attached a layout guideline for your reference.
TPS6525x_LAYOUT_GUIDE.ppt
Part Number: TPS65251 As per our requirement, we are using two outputs of TPS65251. Buck 1 : 3.3V & Buck 2 : 1.2V.and PGOOD for power status in our design.
Buck 3 is properly disabled by pulling low to the EN3 pin,
Even though we are disabling Buck…
Part Number: TPS65251 Other Parts Discussed in Thread: TINA-TI , "Invalid device: $CDNENCSTART. LINE:#37" error when I try to open PSPICE model and "Invalid device: +V. Line: #3" when I try to open TINA-TI model
Part Number: TPS65251 Hi,
My input voltage is 12V, O/p of buck1 = 3.3V, Buck2 = 2.5V, Buck3 = 1.8V.
1. During the bringup, the EN of Buck1 is toggling i have checked the input ripple which is around 500mV.
2. When i am checking the datasheet there where…
Part Number: BQ25713 Other Parts Discussed in Thread: PMP40441 , TPS65251 , Hi ,
Customer want to implement USB PD like reference design PMP40441. Below is the block diagram. The MCU power is from TPS65251 .
They want to ask when adapter plug in and battery…
Part Number: TPS65251 Hello,
I have two questions:
I'm using TPS65251 to step-down 12V/6A to three (3) 5V/2A, I also like to know if i can use the LDOs in the same time V3V (3.3V) and V7V (6.5) and how much current I can get of the LDOs.
second question…
Other Parts Discussed in Thread: TPS65251 HI, I am looking for a recommendation on a easy to use, and low cost PMIC that takes 12V Vin, and 3 Vout at 1.8V, 2.5V and 3.3V. There is high current demand on those rails, so 2A would be sufficient. It will be…
Part Number: TPS65251 Hi Sir,
I used TPS65251 but only want used output1 and output2, my output 3 all pin can floating as attached file?
Or enable pin need connect to GND?
I have meet no power issue on this chip, output1 set to 3.3V but only 2.5V, output2…
Part Number: TPS65251 The customer uses only the BUCK1 converter. BUCK 2 and BUCK 3 are unused.
I want to confirm the termination of the following pins of the unused BUCK converter. (x is 2 or 3)
LXx BSTx FBx CMPx SSx RLIMx ENx VINx
* I found the following…
Other Parts Discussed in Thread: TPS65251 I have questions about TPS65251.
Question 1.
Please tell me the output voltage temperature characteristic of the TPS65251.
Example) _% Vout/℃
Question 2.
In datasheet P.6(Load regulation - DC ΔVOUT/ΔIOUT…