MPQ4470GL-P

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The MPQ4470GL-P DC/DC Switching Regulator is ideal for use in a wide range of applications including power supplies, communications, computing and medical devices. It features a wide input voltage range from 4V to 34V, high efficiency up to 95%, adjustable switching frequency from 200kHz to 2MHz and user-adjustable current limit. The MPQ4470GL-P is designed for use with a synchronous rectifier buck topology, and it can be used with either a negative or positive de-saturation current limit control. The MPQ4470GL-P is RoHS compliant and available in a small, low profile MSOP-10 package.

The MPQ4470GL-P DC/DC Switching Regulator is based on a synchronous buck topology, with input voltage of 4V to 34V, an adjustable switching frequency of 200kHz to 2MHz, and user-adjustable current limit of up to 5A. The switching regulator integrates a P-channel MOSFET that utilizes both a critical conduction mode (CRM) and pulse width modulation (PWM) for maximum efficiency. The MPQ4470GL-P also features a frequency synchronization pin to ensure the switching frequency remains consistent in different load conditions. The voltage regulation is achieved through a modulating control loop with programmable reference current and output voltage sense.

The MPQ4470GL-P DC/DC Switching Regulator has integrated protection features, such as overvoltage protection, overcurrent protection, thermal shutdown, and output undervoltage protection. The device also has external shutdown and enable control pins to allow the user to power down the device with an external signal. In addition, the MPQ4470GL-P includes a current limit control to improve overall efficiency and reduce power dissipation.

The main function of a DC/DC Switching Regulator is to convert an input voltage to an output voltage. It can be used as a step-up, step-down, or inverting regulator. The MPQ4470GL-P is a step-down regulator, which takes a higher input voltage and reduces it to a lower output voltage. The device employs a synchronous switching technology for high efficiency and allows for adjustable switching frequency, current limit, and output voltage. The MPQ4470GL-P also has thermal, overcurrent, and output undervoltage protection features, so it can be used in applications that require tight voltage and current regulations, such as medical and computing.

The MPQ4470GL-P operates by using synced PWM control. By using a high switch frequency, the device can reduce the size of the inductor and capacitor while still providing stable operation. In this mode, the device switches off when the output voltage reaches a certain level and then turns on again when the input voltage has dropped enough that the output voltage falls below the programmed set point. This switching occurs at a frequency determined by the user and is regulated by the internal oscillator. The user can also configure the current limit, which is the amount of current the device can supply to the load. The MPQ4470GL-P also provides protection against overvoltage, overcurrent, or output undervoltage conditions.

In summary, the MPQ4470GL-P is a DC/DC Switching Regulator designed for use in a wide range of applications from power supplies, communications, and computing to medical devices. It offers a wide input voltage range, high efficiency, adjustable switching frequency and user-adjustable current limit. The device also provides protection against overvoltage, overcurrent, or output undervoltage and is available in a small, low profile MSOP-10 package. The MPQ4470GL-P is ideal for applications that require tight voltage regulation and current regulation.

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