Part Number: LM5140-Q1 Other Parts Discussed in Thread: PMP15032 , LM5143A-Q1 , LM5143 , LM5137-Q1 Tool/software: dears,
My customer is planning to use LM5140 as a buck converter for the application: Vin=24V, Vout=5V (max current 40A), they will combine…
Part Number: LM5140-Q1 Other Parts Discussed in Thread: TMDS64EVM , Tool/software: Hi team,
The LM5140 on TMDS64EVM is breaking down.
VDDA and SS2 are working, but no pulse is being output from channel 2 side. I am turning the power on and off as per the…
Part Number: LM5140-Q1 Hi,
Vin=12V Vout1=3.3V Vout2=5V
Since our outputs are 3.3V and 5V, we connected the FB pins as follows. But when we take measurements, we can't see 5V on the VDDA pin, so the outputs are not as we expected. What could be the reason…
Part Number: LM5140-Q1 Other Parts Discussed in Thread: LM5143A-Q1
Our original design was based on using LM5140-Q1,
but TI has significantly increased the price of this IC
I would like to ask if we can use LM5143A-Q1 instead.
If it is a suitable replacement…
Part Number: LM5140-Q1 Other Parts Discussed in Thread: LM5143 Hi,
The formula for lm5140 and lm5143 is different, I've seen both formulas in other places.
It looks like one is based on Q and one is based on W, but which is better?
Part Number: LM5140-Q1 Other Parts Discussed in Thread: LM25149-Q1 Hi TI engineer,
We found 3 boards’ load switch damage which is after LM5140 5V OUTPUT in our project. Each board has two load switch ,both damage. They are low impedance in IN pin…
Part Number: LM5140-Q1 Other Parts Discussed in Thread: LM25143-Q1 , LM5143A-Q1 Hi Ti team,
We are checking all ICs in our BOM if they have any errata sheet, does LM5140-Q1 have any errata sheet?
Part Number: LM5140-Q1 Hi Team,
I'm using LM5140 DUAL Buck controller in my design.
The current requirement are: 25A@3.3V, 8A@5V.
The calculator tool shows the efficiency of the regulator drops above 20A current for 3.3V output.
Attached the values…
Part Number: LM5140-Q1 Other Parts Discussed in Thread: LM5143 , Dear All,
Here are 2 outputs that I'm trying to achieve:
Output I
Input voltage: 46-54V
Output voltage: 12V +/-5%
TDP: 250W (30A)
OCP: 50A
Type: non isolated
Ambient: 60C
Cooling: ? …
Timothy Hegarty said: Hi Jerry,
Please send a completed LM5140-Q1 quickstart calculator for this design. You will need to increase the inductance if Fsw = 440kHz.
Btw, the 47pF cap should go from COMP to GND (not in parallel with Ccomp).
Regards,
T…