NB621EV-LF-P

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Linear voltage regulators and switching voltage regulators are two main categories of integrated circuit voltage regulators in the family of power management integrated circuits (PMICs). The NB621EV-LF-P voltage regulator is an example of a PMIC voltage regulator that combines features of both linear and switching voltage regulators.

The NB621EV-LF-P is a single-phase synchronous buck regulator with a two-level buck configuration and two outputs, one of which is adjustable. It supports a wide input voltage range of 0.7V to 5.5V and a very high output voltage resolution of 0.5mV. It is ideal for use in applications such as low-power devices, field-programmable gate arrays (FPGAs), and digital signal processors (DSPs).

The NB621EV-LF-P contains an internal power switch and a low-side synchronous rectifier that operate in a two-level configuration, providing a high power density and efficiency. It also includes a low-noise, current-mode control loop and a wide range of protection features. The regulator is capable of up to 1.2A of continuous output current and up to 2A of peak output current. It has a thermal shutdown protection feature that turns off the output if the power device exceeds a predefined temperature.

The NB621EV-LF-P regulates its output voltage using a two-level voltage regulation. At the first level, the power switch is driven by a current-mode based oscillator. The oscillator frequency drives the power switch in a manner that controls the output voltage. The second level follows the first level, using a voltage-mode based feedback loop that fine-tunes the output voltage by controlling the switch’s duty cycle. This two-level control system allows the device to be adjustable to a wide range of input and output voltages, and provides high-precision voltage regulation.

The NB621EV-LF-P is an ideal power solution for a wide range of applications, such as powering digital logic, microcontrollers, memory, FPGAs, and DSPs. Its ability to provide a high level of precision, its wide input voltage range, and its current-mode control loop give it the flexibility to be used in a wide range of applications. Its compact form factor also makes it suitable for use in space-constrained environments.

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