MP3410DJ-LF-ZX

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The MP3410DJ-LF-ZX is a component in the PMIC (Power Management IC) series of Voltage Regulators. It is part of the DC DC Switching Regulators group. The MP3410DJ-LF-ZX is a constant on-time current-mode switching regulator controller integrated circuit (IC), designed to produce regulated output voltage from an intermediate unregulated voltage.

It is a programmable switching regulator controller IC based on an innovative current mode strategy with an adjustable output voltage ranging from 0.8V to 5.5V. It can deliver up to 2.6A of output current and provides efficient voltage regulation in a wide range of input voltages from 4.5V to 30V.

The MP3410DJ-LF-ZX integrates many features such as a professional constant-on-time current-mode control topology, Synchronous Rectification (SR), overtemperature protection, overvoltage protection, short circuit protection and a wide input range of 5V to 30V. Unlike many other current-mode controllers, it offers a fixed 1.25MHz switching frequency which enables the use of small and low cost external components.

When it comes to applications, the MP3410DJ-LF-ZX is ideal for powering a wide range of microcontrollers, FPGAs and low-voltage CPU cores. It can also be used for a variety of other DC-DC power supplies such as in automotive and industrial systems.

The MP3410DJ-LF-ZX comes in a SO-8 package and has a wide operating temperature range from -40°C to +125°C. It supports external voltage feedback mode and it is equipped with an accurate on-chip voltage reference which makes it an ideal choice for applications that need high accuracy and low noise performance.

The working principle of the MP3410DJ-LF-ZX is very simple. It is basically a current-mode switching regulator controller which receives an input voltage, voltages sense it, and then regulates the output voltage. The regulated output voltage is created by an internal oscillator which drives a power MOSFET or a solution-controlled rectifier (SCR). The output voltage is then adapted with a stabilizing system that contains resistive elements in series and/or parallel and/or a voltage regulator.

The input voltage is sensed by a voltage divider, formed by R1/R2 and connected to the device’s input. This is then compared to an internal voltage reference, which is provided by the internal reference REF pin. If the reference voltage is exceeded, the internal oscillator will be activated, driving the MOSFET, SCR, and the other external components. The resistor, Rt pin, and the capacitor, Ct pin, are used to adjust the oscillator frequency, providing adjustable control of the internal oscillator.

The oscillator frequency is also used to set the duty cycle of the internal switch. The duty cycle can be adjusted by the output voltage set-point. This is done by measuring the output voltage and providing it feedback to the chip using the FB pin. The duty cycle is then adjusted based on the feedback voltage, keeping the output voltage regulated. The on-chip voltage reference provides the necessary accuracy in order to keep the output voltage stable.

The MP3410DJ-LF-ZX is an efficient, compact, and cost-effective constant-on-time current-mode switching regulator controller. Its wide input voltage range and adjustable output voltage make it suitable for a variety of applications. It provides efficient voltage regulation and protects against overvoltage, overtemperature, and short circuit protection. With its 1.25MHz switching frequency, it reduces the need for large, expensive external components while providing accurate output voltage regulation.

In short, the MP3410DJ-LF-ZX is a highly versatile and reliable current-mode switching regulator controller IC. It is a great choice for various applications such as microcontrollers, FPGAs, low voltage CPUs, and a wide range of industrial and automotive DC-DC power supplies.

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