SLVSBM9E October 2013 – September 2018 LMZ31520
PRODUCTION DATA.
Refer to the PDF data sheet for device specific package drawings
The PWRGD pin is an open drain output. Once the voltage on the SENSE+ pin is between 90% and 115% of the set voltage, the PWRGD pin pull-down is released and the pin floats. The recommended pull-up resistor value is between 10 kΩ and 100 kΩ to a voltage source that is less than 7 V. An internal 100 kΩ pull-up resistor is provided internal to the device between the PWRGD pin (pin 19) and PWRGD_PU pin (pin 18). The PWRGD_PU pin can be connected to a voltage source less than 7 V or connected directly to V5V (pin 61), which is an internal 5V regulator. The PWRGD pin is in a defined state once VIN is greater than 1.0 V. The PWRGD pin is pulled low when the voltage on SENSE+ is lower than 90% or greater than 115% of the nominal set voltage. Also, the PWRGD pin is pulled low if the input UVLO or thermal shutdown is asserted or the INH pin is pulled low.