MB39A214APFT-G-JNERE1

The MB39A214APFT-G-JNERE1 is a DC DC switching controller within the PMIC (Power Management IC) and voltage regulator arena. It provides in-depth control of the power needed for a device, ensuring the electricity powering them is within safe levels for the device and its subsystems.

The device features a power MOSFET (metal oxide semiconductor field effect transistor) and offers a wide voltage input range from 1.5V to 5.5V. Furthermore, it supports automode output voltage control, enabling it to adjust the powerful it supplies to a device, making it a great choice for applications where power is constantly fluctuating and requires quick adjustment to stay within safe parameters without draining system resources.

Its capability to provide power while consuming low standby current makes it an ideal choice for applications such as digital systems, including: digital TVs (DTVs), Blu-ray Disc players, over-the-top boxes, PCs and laptops, tablets, most portable gaming devices, and embedded control systems.

The working principle of the MB39A214APFT-G-JNERE1 is quite simple. As the device acts as a voltage regulator, it works by controlling the amount of power sent to a circuit. The device itself consists of two main parts: the power MOSFET and an onboard regulator circuit.

The power MOSFET is used to switch the current coming from the power supply to the load circuit, such as when a motor is used or the circuit needs to be reset. This is done by the onboard regulator circuit, which senses the voltage level at the power supply and adjusts the power MOSFET accordingly.

When the voltage exceeds the set upper limit (“safe” level), the power MOSFET is turned off to prevent the circuit from being overloaded, thus providing protection. Furthermore, when the voltage drops below a certain level, the power MOSFET is also turned off, preventing the circuit from being dangerously underpowered.

The onboard regulator circuit constantly monitors the voltage and adjusts the power MOSFET as necessary. This is done by detecting the external voltage level and then sending a signal to the power MOSFET to switch on or off according to the requirements to ensure the correct voltage is delivered to the load circuit.

In summary, the MB39A214APFT-G-JNERE1 is a powerful DC DC switching controller that provides comprehensive voltage regulating. It works by continually monitoring the voltage and adjusting the power MOSFET as needed to maintain a safe power level, making it an excellent choice for a variety of digital systems.