NCP300LSN33T1

ON Semiconductor’s NCP300LSN33T1 is a type of PMIC (Power Management Integrated Circuit) Supervisors. It is designed for providing reliable power supply sequencing in consumer products and industrial applications. This voltage supervisor provides system level power management and supports a wide range of input voltages up to 5.5V.

Overview of the NCP300LSN33T1

The NCP300LSN33T1 is a low power voltage supervisor. It provides logic level signals for the system power supply sequencing, monitoring and protection functions. In addition, the NCP300LSN33T1 has an active-low RESET output, an active-low POR (Power-on-Reset) output and an active-high PGOOD (Power-Good) output.

The NCP300LSN33T1 has an automatic Power OK (POK) delay time configuration option. This allows the user to configure the POK delay time from 10ms to 200ms. The POK output is low during the delay time after the device is powered-up. Once the configured delay time is expired, the device asserts the POK output and all other outputs.

The NCP300LSN33T1 is available in the SOT-23-5 package. It operates at a temperature range of 0°C to 70°C. This device is suitable for automotive and industrial applications.

Features

• Wide input voltage range of 2.5V up to 5.5V
• High accuracy (+/-3% over temperature and supply)
• Two Power-on-Reset circuit options
• Internal 10ms to 200ms POK (Power Ok) delay
• Low power consumption
• Active-low RESET and POR outputs
• Package: 5-pin SOT-23
• Applicable temperature range: 0°C to 70°C
• Automotive grade

Applications

The NCP300LSN33T1 PMIC supervisor is suitable for applications such as automotive, communication systems, storage systems, consumer products and industrial control systems.

Working Principle

The NCP300LSN33T1 PMIC voltage supervisor works by monitoring the system supply voltage to detect out-of-range or power-on-reset conditions. The device has a comparator which continuously compares the input voltage level to two setpoints, the RESET and Power-On Reset (POR) thresholds. When the input voltage is greater than the RESET threshold, the active-low RESET output is asserted. When the input voltage crosses the POR threshold, the active-low POR output is asserted.

When the input voltage is between the RESET and POR thresholds, the PGOOD (Power-Good) output is asserted. In addition, the NCP300LSN33T1 also features an active-high POK (Power-OK) output that is asserted once the configured delay time (10ms to 200ms) is expired. This ensures that the system has enough time to complete the power-up sequence before the NCP300LSN33T1 is released.

Conclusion

ON Semiconductor’s NCP300LSN33T1 PMIC Supervisors is a low power voltage supervisor suitable for automotive and industrial applications. It is designed for providing reliable power supply sequencing and support a wide range of input voltages up to 5.5V. The NCP300LSN33T1 has an active-low RESET output, an active-low POR (Power-on-Reset) output and an active-high PGOOD (Power-Good) output. It also has an automatic Power OK (POK) delay time configuration option.