SLVSDF3F MARCH 2017 – JANUARY 2019 TPSM846C23
Applications requiring voltage rail sequencing can benefit from the PGOOD signal present with the TPSM846C23. The PGOOD pin is an open-drain output. When the output voltage is typically between 95% and 105% of the setpoint, the PGOOD pin pulldown is released, and the pin floats, requiring an external pullup resistor for a high signal. A 10-kΩ pullup resistor is placed between the PGOOD pin and the BP3 rail.