JAJSCL2C October 2016 – August 2021 TPS65983B
PRODUCTION DATA
The VIN_3V3 voltage is connected to the VOUT_3V3 output by a single FET switch (S2 in Figure 9-40).
The enabling of the switch is controlled by the core digital circuitry and the conditions are programmable. A supervisor circuit monitors the voltage at VOUT_3V3 for an under-voltage condition and sets the external indicator RESETZ. The RESETZ pin is active low (low when an under-voltage condition occurs). The RESETZ output is also asserted when the MRESET input is asserted. The MRESET input is active-high by default, but is configurable to be active low. Figure 8-1 shows the RESETZ timing with MRESET set to active high. When VOUT_3V3 is disabled, a resistance of RPDOUT_3V3 pulls down on the pin.