NCP717CMX185TCG

The NCP717CMX185TCG is a power management integrated circuit (PMIC) used in a variety of applications. This device is a voltage regulator specifically in the linear category. It is designed to provide constant output voltage to maintain a steady power supply and reduce power dissipation in the load. This device is especially useful in situations where power demands are changing quickly, or where a constant voltage needs to be maintained in systems operating from multiple power sources.

The NCP717CMX185TCG combines an internally set adjustable output voltage, with an integrated priority control interface, to provide a cost-effective solution for system-level power control. The adjustable output voltage can range from 0.8V to 5.4V, with 0.1V increment and 0mV decrement. The output voltage is preset during the manufacturing process. This operation is done through a dedicated pin (V OUT). The integrated priority control interface permits the selection of three power sources that can be used to power the device, namely a standard 5V input, 3V input, or a battery, with a capacity up to 13.5V. This feature is particularly beneficial in portable applications, where external power sources often switch between 3V, 5V, and battery.

The NCP717CMX185TCG then uses voltage feedback to adjust the output voltage to the desired level. The current-sense amplifier receives the output voltage and compares it to the set point voltage, and the voltage regulation loop maintains the demanded voltage level. The load transient response follows a linear step voltage profile, and the device is capable of providing a 0 to 6A output current range. The device also features a built-in overcurrent, overvoltage, and over-temperature protection.

The NCP717CMX185TCG features a high power efficiency, low voltage ripple and overvoltage protection, as well as a safe operating area (SOA) for reliable and safe operation. The device has a total power dissipation of 12W and an operating temperature range of -40°C to +125°C. Additional features include a 8Vpp (typical) slew rate, an output current range of 0 to 6A, and a line regulation of 0.2%.

The NCP717CMX185TCG is suitable for use in industrial applications such as HVAC, UPS systems, and other power-supply systems where isolation and accurate voltage control at the output is required. It is also suitable for use in a variety of portable applications such as mobile phones, portable media players, and GPS units.