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LM36011: TI solution suggestion

Part Number: LM36011
Other Parts Discussed in Thread: LM3644

Dear Team,

Our customer due to spec limit need to replace the LM36011. Do we have any solution can meet the spec as below?

1. Vin: 3V

2. need 2 pics IR LED

3. PWM controller

4.switching frequency  can not under 20kHz,  Otherwise there will be audio resonance.

Many Thanks,



Many Thanks,