ZHCS901E May 2012 – September 2021 TPS55340
PRODUCTION DATA
An undervoltage lockout circuit prevents mis-operation of the device at input voltages below 2.5 V (typical). When the input voltage is below the UVLO threshold, the device remains off and the internal power MOSFET is turned off. The UVLO threshold is set below minimum operating voltage of 2.9 V to ensure that a transient VIN dip will not cause the device to reset. For the input voltages between UVLO threshold and 2.9 V, the device tries to operate, but the electrical specifications are not assured.