Part Number: TPS51113 Other Parts Discussed in Thread: PMP22477 Tool/software: Hi Team,
Design a DC-DC converter
Vin 20V, Vout 12V, Iout 4.16A 50W
This design requires current sharing and power limit functions.
When the current exceeds 4.16 A…
Part Number: TPS51113 Hi Expert,
Customer tested the OVP function of TPS51113DRCT, found the b pint is only 1.5V, seems it was clamped by VOS pin.
Could you give a comment for this phenomena? Here is the circuit. Thanks.
Other Parts Discussed in Thread: TPS51113 Hi,
We are using TPS51113 for generating a voltage of 3.3V from 12V supply.
We designed our circuit in TINA and tried to simulate it but the output is not as intended. The output is below 1V.
This can be…
Other Parts Discussed in Thread: TPS51113 Hi,
We are using TPS51113 for 12V to 3V3 conversion on our card. It is observed that, at specific instances 3V3 do not come up in spite of the circuit being proper, but 3V3 might come up on subsequent power…
Part Number: TPS40422 Tool/software: Hi expert,
Customer used TPS40422 for 12Vin to 0.88Vo/40A and use the calculation tool for compensation but find the phase/gain margin is not good.
Would you please advise how to adjust the stability?
TPS40KType…
Denny Huang
The schematic looks better now.
Looking at the compensation spreadsheet, I had to change the part number to TPS40077, and after doing do, I noticed that the phase margin at the L-C resonance is very low. Looking into why, I can see…
Amir Eshraghi
I took a look at the compensation. It is certainly conservative for a 1.2MHz switcher, but I don't see any issue. I have attached the Excel spreadsheet with the loop analysis. TPS40KType III Loop Stability kVenable_TPS40305.xls
So…
Noman Paracha
The 2x 15uF tantalum capacitors are not strictly needed by the TPS546C23, but may be helpful in decoupling dynamic loading on VIN from other supplies, or distribution drops on your 12V supply rail, it depends on your system requirements…
Other Parts Discussed in Thread: TPS56121 art Number: TPS56121
Hi team,
Could you help me to find an appropriate value for inductor and loop compensation RC?
I'm trying to design TPS56121 in the operating condition of 10.8Vin, 5.5Vout, 2.8Aout…
