NCP707CMX320TCG

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The NCP707CMX320TCG is a high-efficiency, low-power linear regulator from ON Semiconductor that is ideal for microcontroller applications where power consumption is an issue.

The device enables high-density power integration with an effeciency of up to 95% and a qucsative current consumption of only 300nA mA-1. The PMIC regulator also features a low-dropout architecture, providing up to 80% power savings at varying input voltages.

The NCP707CMX320TCG is designed to be used in many power applications, such as powering small devices, providing voltage regulation and powering high-side switches. It is ideally suited for microcontrollers, allowing for software-controlled power supply output voltages.

The device is highly integrated, offering the completeness of circuit designs with the lowest power solution. This includes the accurate output voltage and low quiescent current integral to microcontroller power management, and additional benefits such as system protection and detection of current, thermal, and open circuit faults.

The NCP707CMX320TCG is designed to meet the power requirements of hot plugging applications while preventing significant in-rush current. The device comes with low-side impedance, adjustmentcapability, a negative voltage regulation feature enabling Class 1, Class 2, Alt Input and HID applications, and built-in brown-out detection. It also has adjustable current limit and hysteresis.

In terms of working principle, the NCP707CMX320TCG provides an adjustable output voltage via a power-saving low-dropout (LDO) architecture, using a linear series regulator topology. This topology features high accuracy and low output voltage ripple, as well as adjustable current limit and hysteresis for system protection.

The device has an integrated operational amplifier and feedback control loop, which compares the output voltage with the internal bandgap voltage reference in order to adjust the output voltage. The amplifier regulates the output voltage by controlling the gate bias of a PMOS pass transistor. This transistor controls current through the pass channel, thus regulating the output voltage.

The device also features a power-saving LDO architecture that enables the system to remain in standby mode, thus reducing its power consumption. This LDO architecture is also responsible for automatic power switch-off when the voltage drops below the set threshold.

In summary, the NCP707CMX320TCG is an integrated power management IC designed for use in microcontroller-based systems, offering accuracy and low output voltage ripple with adjustable current limit and hysteresis. This PMIC linear regulator offers high efficiency and low power consumption, making it an optimal choice for power management applications.

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