Part Number: TPS54260 Other Parts Discussed in Thread: TPS64200 , TPS40000 , TPS40040 , TPS40021-EP , TPS40007 , TPS65262-1 , TPS53353 , TPS53513 , TPS53355 , TPS53515 , TPS53318 , TPS53319 , TPS53915 I am anxious to use the concepts presented in TI’s…
Other Parts Discussed in Thread: TPS40007 one of my customer is using TPS40007 to develop a POL module.
Margin up/down function is needed. so I want to know how to achieve Margin up/down based on TPS40007 controller?
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…
Hi Peter
Thanks your recommend.
The customer already modified the schematic.
Could you help to review the schematic and compensator?
The compensator as attached.
TPS40KType III Loop Stability kVenable_sluc263c-071312_ARC_0706.xls
1. You have…
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…
Chris Jensen
Have you been able to make the changes Yuchang Zhang suggested?
Have they addresses your issue?
The TPS40077 controller uses the KFF pin to provide UVLO, Voltage Feed Forward and a maximum duty cycles. The low resistance on the…
Ramgopal,
Your assessment of the bulk decoupling required is correct. You must calculate the required amount and validate it. The Hardware Design Guide (SPRABI2) discusses this calculation.
This bulk capacitance will affect the control loop on the…
Part Number: TPS544C25 Hi team,
I searched E2E and found there is a post related to my question as below.
https://e2e.ti.com/support/power-management/f/196/t/433191?tisearch=e2e-sitesearch&keymatch=tps544c25%2525252525252520calculation
But I didn…
