NR1644 Series

Low Noise High RR Low Dropout 2A 0.4V Output Voltage Regulator

The NR1644 series is CMOS based low-dropout voltage regulator.

This device is characterized by ultra-low output noise, high ripple rejection, high-speed response characteristics, and low current quiescent current.

By automatic alternative between Fast-mode and Low-power-mode according to the load current, the current consumption at light loads is reduced.

For responsive applications, the Fast-mode fixed version is available.

The NR1644 series has the Soft-start function that allows the rise time to be set by changing the capacitance of the external capacitor (CNR).

NR1644 achieves the low current consumption, ultralow output noise, and high ripple rejection, so it is suitable for applications including IoT devices, batterypowered devices, and analog components that require attention to noise.