TPS7A49: request for clarification for feedback current spec

Jeff Smith1

Part Number: TPS7A49

The TPS7A49 datasheet says the feedback current in the resistor network should be greater than 5uA to ensure stability.

However, the spec page in the datasheet says the feedback current range is 3nA to 100nA. Are these two currents different?

over 8 years ago

0 Jason Song over 8 years ago

TI__Mastermind 23361 points

Hi Jeff,

The 100nA max spec is considered the leakage current from feedback pin. The 5uA is primary from Vout pin and this current is decided by the resistor network. Those are two different currents.

Regards,
Jason

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TPS7A49: request for clarification for feedback current spec