JAJSK02 October 2020 TPS23731
PRODUCTION DATA
RTN is internally connected to the drain of the PoE hotswap MOSFET, while AGND is the quiet analog reference for the DC-DC controller return. GND is the power ground used by the flyback power FET gate driver and CP output, and should be tied to AGND and RTN plane. The AGND / GND / RTN net should be treated as a local reference plane (ground plane) for the DC-DC control and converter primary. The PAD_G exposed thermal pad is internally connected to RTN pin.