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LM2705MF-ADJ/NOPB based boost converter design verification

Ariharan S
Prodigy 60 points
Other Parts Discussed in Thread: LM2705

Hi,

We are planning to use the MPN:LM2705MF-ADJ/NOPB, for one of our upcoming design. Below is our requirement and designed schematic.

Input voltage= 5V

Output voltage=7.5V

Peak to Peak output voltage expected= 100mV

Output load current = 110mA.

Inductor (L2)=10uH (LPS4018-103MRC)

Diode (D7)= MBRS410LT3G

Kindly let us know if the design needs any further modification or the design satisfies the required specification.

  • 0
    TI__Genius 16800 points

    Hi Sir,

    Thanks for reaching out.

    From your design requirement, I don't think LM2705 is suitable for your design. Because the input current is equal to 0.11A*7.5V/(0.85*5V)=0.19A, which is higher than the switch current limit. 

    Instead,  TLV61046A is recommended.

    Regards,

    Bryce