MB39C031WQN-G-142-JNEFE1 Integrated Circuits (ICs)

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MB39C031WQN-G-142-JNEFE1 Application Field and Working Principle

The MB39C031WQN-G-142-JNEFE1 is an integrated linear regulator from Fujitsu that belongs to the PMIC (Power Management IC) - Voltage Regulators - Linear + Switching range. This type of device typically includes a combination of linear regulators, switching DC-DC Convertors and signal processing functions used to control the power supply source of a system.

The application field of the MB39C031WQN-G-142-JNEFE1 is targeted to portable devices that require a low cost and compact power management solution. This device also offers numerous advantages over conventional power suppliers, as it heavily reduces the need of external components, resulting in less board space and a reduced power budget. This makes it an ideal solution for mobile or space constrained designs.

The MB39C031WQN-G-142-JNEFE1 is a low-dropout (LDO) linear regulator. This means that the input voltage (Vin) need to be higher than a certain minimum value (Vout + Vdrop) in order for the device to work. This Voltage Drop is the difference between the input voltage at which the device is able to maintain the output voltage.

The MB39C031WQN-G-142-JNEFE1 is an adjustable type regulator, which means that its output voltage is adjustable to the user’s needs. It has a control input that, when connected to a certain voltage reference, forms an error amplifier circuit. This circuit compares the output voltage at the feedback terminal with the voltage reference voltage, adjusting the DC-DC boost converter until it gets the desired voltage.

This device also offers built-in thermal protection, over current protection and under voltage lock-out to protect the system from instability or damage. These functions prevent the device from going into an unstable state due to an overload due to the output current, or a malfunction due to an excessively low input voltage.

The MB39C031WQN-G-142-JNEFE1 is a high-performance, low-cost and space-saving solution that is perfect for portable applications. Its features make it an outstanding choice among those needing an adjustable, low-dropout voltage regulator that offers the convenience of integrated thermal, over-current and under-voltage protection.

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