In summary, the STM660x requires an operating voltage range of 1.6V to 5.5V and has a low operating current of 6μA (only 1μA in standby mode). Other features include a smart reset assertion delay time that is adjustable and determined by the value of an external capacitor. Additionally, the power up duration is determined by a pushbutton press for the STM660x devices or by a fixed time period, tON. Furthermore, this device is available in a precise 1.5V voltage reference with an accuracy of 1% in addition to the TDFN-12 pin package that measures only 2mm x 3mm. To learn more about these Smart on/off controllers please visit STMicroelectronics’ website at www.st.com and look under the Power Management section.