Other Parts Discussed in Thread: LM25574 I'm trying to use Webench to design an inverting buck boost power supply with the LM25574. Input 8-14V, Output -9V @ 100 mA, Fsw 700 kHz. Webench gives me a design that is topologically correct. But many of…
Other Parts Discussed in Thread: LM25574 Hello.
The request to prompt why Webbench for R3,R4,R5,R6 resistors (according to the scheme on the LM25574 page 8 datasheet) specifies the minimum size 0805?
Parameters of the scheme of Vin = 8-40 V, Vout = 2,8…
Other Parts Discussed in Thread: TPS54040A , LM25574 I need an inverting buck-boost power supply to convert 8-10 Volts in to -9 Volts out at 10-100 mA. I need to be able to sync the switcher at about 700 kHz. Board space is not a concern.
Both the TPS54040A…
Hi Rohit,
This device's recommended switching frequency range is 50kHz - 500kHz. The LM25574 can operate from 50kHz - 1MHz.
Best Regards,
Katelyn Wiggenhorn
Other Parts Discussed in Thread: LM25574 Dear Ti,
I had find that LM25574 the inductance from the webench simulated shows a different value from the calculated value from the datasheet. Please help to advise the accurate calculation. My requirements are…
Part Number: LM5576
Hi team,
Can I ask for your help to find the problem on TINA simulation results?
LM5576_calculator.xls
From the excel calculator, 75uH of Lout is recommended under the condition of 50Vin, 28Vout, 2Aload. But unavoidably customer has…
Hello Wenhao,
I've updated the link in the attached file, try this out and let me know if it works.
Regards,
Harrison Overturf
simple_switcher_quickstart.xls
Other Parts Discussed in Thread: LM25574 Input voltage must be between 6 to 42 volts. I need to charge the battery in trickle charge mode with 500mA. Can I use this LM25574.
Thanks