Part Number: LM25119 Hi team,
For signal grounding and power grounding, are all signal grounds grounded to the EP of IC first, and then connected to a ground plane through EP?
How pgnd1 and pgnd2 ground to the recommended grounding?
For recommendation…
Part Number: LM25119 Other Parts Discussed in Thread: PMP20021 , PMP9700 Dear Sir,
DEMB(PIN17): floating is enable diode emulation mode and low side MOSFET latch-off. right ?
-> that mean LM25119 into like as non-sync. Buck converter during output light…
Part Number: LM25119 Dear Sir,
As below transient load waveform(output current 5A to 0A transient), output voltage overshoot too high over 200mV,
Vin=20V ~ 36V, Vo=12V/34A, circuit design interleaved mode(refer datasheet page 32 circuit)
DEM pin= floating…
Part Number: LM25119 Hi,
The LM25119 application encountered the following problems in the 1200W laser power supply project: Product information: Input voltage 80-130V, output constant current maximum 20A, output voltage maximum 62V. Laser driver: product…
Part Number: LM25119 Dear Sir,
As below transient load waveform(output current 5A to 0A transient), output voltage overshoot too high over 200mV,
Vin=20V ~ 36V, Vo=12V/34A, circuit design interleaved mode(refer datasheet page 32 circuit)
DEM pin= floating…
Part Number: LM25119 Hi team,
The LM25119 max switching frequency is 750KHz as the datasheet mentioned.
But we would like to know if we always operate at around 918KHz.
The chip may have risk of the damage and could you provide some direction to us for…
Part Number: LM25119 Hello,
I have a problem with LM25119.
Input voltage:12V
Output voltage:0.9V\1.8V\3.3V
Load current test range:0-30A
I changed the voltage by changing the FB resistance and then carried out the load test.
I found that when the voltage…
Part Number: LM25119 Hi There,
We used this chip in our 12-5 voltage converter, I want to get out of each channel 15A for a total of 30A max at 3.8v. the issue I have is that channel 1 is limiting at 6.4A.
I am not sure what is causing this since they…
Part Number: LM25119 Other Parts Discussed in Thread: UCC27714 , Hi, now our customer uses LM25119+ UCC27714 to design Vin: 80V-130V, Vout: 62VDC,Io:20A; Constant voltage constant current output mode ,now they meet same questions as follow and need support…
Part Number: LM25119 Tool/software: WEBENCH® Design Tools based on webench design, my Vin=28V, using LM25119 as an interleave/single output, per recommended schematic, Vout is expected to be 24V, Iout=19A (9.5A each channel). However, upon power up Vout…