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LM4991: 3.0-W, mono, analog input Class-AB audio amplifier

praveen kumar
Prodigy 10 points
Part Number: LM4991
Other Parts Discussed in Thread: LM48511

Tool/software:

We are using the LM4991LD/NOPB 3W power amplifier. We need a 5W amplifier. Please suggest which amplifier should be used

  • 0
    TI__Guru** 109745 points

    Hi Praveen,

    Please share more details about your requirements for a better selection:

    • Is Class-D also an option?
    • What is the power supply voltage available?
    • What is the load impedance?

    If you're using 4-Ohm load, at least 5V supply and Class-D architecture is OK, LM48511 could be an option for higher power.
    If you have a higher supply rail, you may consider higher power devices such as TPA311D1.

    Best regards,
    -Ivan Salazar
    Applications Engineer

  • 0 in reply to Ivan Salazar
    Prodigy 10 points

    Thank you for your response,

    LM4991LD/NOPB

    We are using the LM4991LD/NOPB 3W power amplifier. we required Same package and same foot print  voltage levels are +5V and +3.3V We need a 5W 8ohms power amplifier amplifier. Please suggest.

  • 0 in reply to praveen kumar
    TI__Guru** 109745 points

    Hi Praveen,

    Don't think there's a pin-to-pin version for higher power. You can refer to my previous suggestions.

    Best regards,
    -Ivan Salazar
    Applications Engineer