LTC2912ITS8-1#TRPBF

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Power management integrated circuits (PMICs) are a type of integrated circuit (IC) component used to manage and condition power in an electronic device. PMICs control the delivery of power to the system components and monitor the system to optimize application performance. One type of PMIC is the Supervisors, which are used to provide voltage monitoring, power sequencing, system reset, and other power management functions in applications that require reliable and efficient power management.

The LTC2912ITS8-1#TRPBF is a supervisor PMIC from Linear Technology (LT). It is designed for use in power supply applications, providing flexible power sequencing, system reset, and monitoring of output supply voltages for any potential drop or overvoltage. The LTC2912 offers a variety of features and benefits to the system designer, including wide operating temperature range, low quiescent current, high ripple rejection ratio, and a variety of power-up and power-down sequences.

The LTC2912 can be used in a wide range of applications, such as power-supply sequencing, over-temperature protection, under-voltage lockout (UVLO), and over-current protection. It can also be used in power management systems, DC-DC converters, multi-rail power supplies, and microprocessor/microcontroller applications. Its main operating voltage range is from 1.8V to 6.5V, and it is available in a 8-lead, TDFN package with a 1.2mm profile.

The working principle of the LTC2912 is based on its integrated voltage supervisor. The device continuously monitors the output voltage using its onboard analog-to-digital converter and takes the necessary actions when an out-of-tolerance condition occurs. When the output voltage reaches an upper or lower limit, it will send an active-low reset or flag signal to the system, depending on the user-programmed settings.

Additionally, the device can be programmed to power-up and power-down the system appropriately using its internal power-on and power-off control logic stages. When power is applied to the system and the output voltage reaches its programmed upper limit, the device has the capability to turn on the power to the system. Conversely, when the output is below the programmed lower limit, the device is capable of powering down the system.

The LTC2912 also provides a programmable watchdog time-out feature that can be used to reset the system if it becomes hung in some sort of fault condition. This is accomplished by centering the watchdog timer at a predetermined amount of time and reseting or restarting the system when the timer has timed out. Lastly, the LTC2912 comes with onboard temperature monitoring and over-temperature protection to ensure the system is operated at a safe temperature.

In conclusion, the LTC2912 is a great choice of supervisor PMIC for a wide range of applications that require reliable and efficient power management. It provides a variety of features and benefits to the system designer and its main functions include voltage monitoring, power sequencing, system reset, and temperature monitoring. It is available in an 8-lead TDFN package with a 1.2mm profile.

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