NCP304LSQ29T1G

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The NCP304LSQ29T1G is a PMIC - Supervisors integrated circuit designed and manufactured by ON Semiconductor Corporation. The device is available in an 8-lead SOIC package, and provides the necessary control functions for microprocessor and system based designs. It is a low power, low noise, precision supervisor, capable of monitoring two independent power supplies and generating a reset output and two active-low power-good (PG) outputs in response to voltage variations.

The supervisor is designed to monitor two supplies: VDD, the logic supply, and VIO, the I/O supply. The monitored voltage levels (VTH and VTL) are independently programmable. The device can be programmed for active high/active low reset output and two active high power-good outputs. Additionally, the supervisor provides an input voltage range of 2.25V to 5.5V.

The NCP304LSQ29T1G provides two monitoring functions: a window comparator circuit, which monitors the two supplies (VDD and VIO), and a watchdog circuit, which monitors the logic activity in the system. The window comparator circuit is used to monitor the supplies voltage levels and to generate power-good signals, while the watchdog circuit is used to generate a reset signal in the case of system failure. These features combine to provide comprehensive power-supply and system-level protection.

The NCP304LSQ29T1G monitors two supplies independently. When the monitored voltage level (VTH or VTL) is outside the preset window comparator or the watchdog timer expires, the supervisor generates a reset output, and an active-low power-good output (PG1 or PG2). The watchdog timer is designed to reset the system after a certain amount of time if the logic activity in the system is not detected. This feature provides robust protection against system failure due to excessive or latent system activity.

The NCP304LSQ29T1G is suitable for a wide range of applications including personal computers, embedded systems, notebooks, telecommunications and consumer electronics. Its key features include its overvoltage protection and single-supply operation. Its low power consumption, low noise and wide voltage range (2.25 V to 5.5 V) make it suitable for many challenging applications. With its integrated power-on reset (POR) and a wide regulation range (1.2 V to 5.0 V), it is ideal for a variety of digital and mixed-signal designs.

In summary, the Versatile NCP304LSQ29T1G is a low power, low noise PMIC - Supervisors integrated circuit designed for monitoring two independent power supplies and generating a reset output and two active-low power-good (PG) outputs in response to voltage variations. Its robust features and wide operating range makes it suitable for a wide range of applications.

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