LTC1728ES5-3.3#TRPBF

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PMIC - Supervisors encompass a wide range of circuitries designed to supervise & protect the system from unexpected input from the power supplies at start-up and during normal operations. This is an important role as it prevents the system from badly being affected and even shortening the life time if malfunctions occur.

The LTC1728ES5-3.3#TRPBF is categorized as a supervisory and protection IC containing several circuits within its 6-pin SOT23-6 package. An instance of its application is in powering a system that requires clean and fault-tolerant power, mainly either the supply of low voltage or high voltage functions using a single supply. With a specific voltage detection range between 2.0 and 5.5, a power-on reset (POR) sensitivity of 1.09v and a precision temperature-compensated voltage detector with under-voltage lockout, the LTC1728ES5-3.3#TRPBF is robust and highly tolerant to voltage irregularities. It is also designed to draw low supply current for itself with the aid of a 1µA reference current.

The LTC1728ES5-3.3#TRPBF can be broadly used in digital circuits and systems that require precision power handling and monitoring. Its ability to provide a fail-safe under-voltage protection makes it highly desirable in many fields such as industrial electronics, medical equipment, and computer storage networks. Additionally, due to the 1µA standby current, it is also perfect for those who are mindful of low power consumption. The LTC1728ES5-3.3#TRPBF is, therefore, a fantastic choice whenever a safe and foolproof power management is necessary.

In terms of its working principle, the LTC1728ES5-3.3#TRPBF functions by monitoring the system voltage in order to detect possible under-voltage conditions. This is done by comparing the voltage to a reference voltage, generated from the internal precision bandgap reference. The reference is then adjusted by the temperature to neutralize the effects of temperature drift on the referenced voltage. If the monitored voltage drops and falls below the reference voltage with a given delay, the POR output pin is activated and a reset pulse will be sent to the digital system. The output state is a push-pull type, with an active high state when POR is asserted.

Finally, the LTC1728ES5-3.3#TRPBF contains an adjustable option that resets the system even if the voltage remains low after the initial impulse. This low-voltage reset circuit has a precision reference voltage of 2.0V that can be adjusted to the desired value with the assistance of an external resistor. An internal voltage range of 1.09V to 5.5V can be set by the selection of an external resistor.

In conclusion, the LTC1728ES5-3.3#TRPBF Supervisory and Protection IC plays an important role in powering and supervising digital systems from unexpected external power conditions. With its low power consumption, adjustable under-voltage lockout, the precision temperature-compensated voltage detector and an additional adjustable low voltage reset circuit, the LTC1728ES5-3.3#TRPBF is a trusted choice for industrial electronics, medical appliances, and computer storage networks.

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