The TPS3613-01DGSsupervisory circuit with adjustable battery-backup for RAM retention is an integrated circuit (IC) manufactured by Texas Instruments for use on PC motherboards or other boards requiring periodic battery backup of volatile memory. It allows for preservation of chip data despite power disruptions. The chip is capable of monitoring a single supply and asserting an interrupt signal when the input voltage goes low, high, or exceeds a user selected threshold. It does this using an adjustable voltage detector, which eliminates the need for external resistors or capacitors. It also has an internal Schmitt trigger circuit, which eliminates false triggering of the interrupt signal. Furthermore, it features low battery and power up reset outputs for resetting microcontrollers or other devices. The chip is available in a range of power levels, including 1.5V, 2.5V, 3.3V, and 4.5V, and is offered in various packages, such as the SOIC-8 and LLP-8.