This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LM27761: design review

Part Number: LM27761


        I am preparing use LM27761DSGT to design LDO circuit, so I have some question about LM27761DSGT:

1. LM27761DSGT  first use a charge pump convert Vin to -Vin, and then use a LDO convert -Vin to Vout?

2. In my design, Vin=3.3V, Vout=-3V, Vout max output current Imax=220mA, the circuit is below, please help to review the design is or not OK?

        Hope your reply, thank you very much.