NCV86601D50R2G

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NCV86601D50R2G belongs to the category “PMIC - Voltage Regulators - Linear”. It is a low-noise, wide-operating current buck voltage regulator with temperature monitoring capability and integrated on-chip compensation. The NCV86601D50R2G provides a constant output voltage under varying input voltage and load conditions. It is designed to be very low in noise, and its wide operating current makes it suitable for many different types of applications.

The typical application field for the NCV86601D50R2G is in the power systems of computing, networking, storage, and embedded applications. It offers passive low-noise power for various components, such as FPGA, DSPs, ASICs, and other such circuits. The NCV86601D50R2G regulator features a wide range of available output current, low quiescent current, low noise, very high efficiency, and over-temperature protection.

The working principle of the NCV86601D50R2G is based on a switching voltage regulator with a dual-stage architecture. The circuit combines an error amplifier (EA) with a low-power high-efficiency synchronous buck switching regulator. The EA senses the output voltage and adjusts the control circuit accordingly. A buck topology is used to transfer the power from the controlled power supply to the load. When the output voltage reaches the reference voltage, the mode is shifted to a skip cycle mode, and the power is provided by the synchronous buck regulator during the switching cycles. At the same time, the current-mode control ensures good transient response.

The NCV86601D50R2G features on-chip temperature monitoring for system thermal protection. The integrated temperature sensor detects the die temperature and provides an output voltage proportional to the temperature. An external resistor is used to program the thermal detection threshold. The constant current source regulated by the on-chip temperature monitor ensures an accurate threshold detection even in case of varying supply voltage.

The on-chip compensation enables the voltage regulator to be stable over a wide input voltage and load range. The NCV86601D50R2G features current mode control to ensure excellent line and load transient response. The control loop is optimized to provide excellent noise and ripple suppression. The low-noise switching circuitry results in very low output ripple and low-noise power supply design.

The NCV86601D50R2G has a wide operating temperature range of -40°C to 125°C. It also features superior EMI performance due to low-noise switching frequency, low switching-induced noise, and high-efficiency. The NCV86601D50R2G is available in a small 3 mm x 3 mm x 0.75 mm QFN-16 package, which is perfect for applications with limited board space.

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