MP38671DL-LF-P

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The MP38671DL-LF-P is an integrated power management IC (PMIC) designed for low-voltage direct current or DC DC switching regulator applications such as portable electronics and wearables. This versatile product features wide input voltage ranges, adjustable output voltages, and many other features that make it an ideal choice for battery-powered applications. The device is made up of a power MOSFET, regulator, current limit, and temperature monitor among other components. This article will discuss the MP38671DL-LF-Ps application field and provide an overview of how it works and how it can be beneficial to battery-powered applications.

Application Field

The MP38671DL-LF-P can provide fixed-output or adjustable output voltages for mobile, portable and battery-powered equipment. This device is well suited for a variety of applications including smart phones, tablets, laptops, portable media players, smartwatches and other similar wearables. Due to its low quiescent current, small package size and wide input voltage range, the MP38671DL-LF-P is an optimal choice for battery powered applications. The device is also well suited for devices such as LED lights, handheld RFID scanners, medical equipment, industrial equipment and automotive applications.

Working Principle

The MP38671DL-LF-P is a DC DC switching regulator that is capable of switching between a high and low to regulate the output voltage. The regulator is made up of several components including an oscillator, a power MOSFET, a voltage regulator, a current limit circuit, a thermal protection circuit and a timer. The oscillator operates at a constant frequency, typically around 500kHz for the MP38671DL-LF-P. This oscillator controls the power MOSFET, which acts as a switch and turns the output voltage on and off. The voltage regulator controls the output voltage of the power MOSFET by sensing the actual voltage and adjusting the oscillator’s frequency. The current limit circuit controls the maximum current to prevent overcurrent conditions. The thermal protection circuit is responsible for shutting down the output if it detects an over-temperature condition, and the timer limits the on-time of the switch. In order to maximize efficiency, the MP38671DL-LF-P’s output voltage is adjustable and can be set to any value within its range.

The MP38671DL-LF-P is designed to provide a maximum output current of 3A and a wide adjustable output voltage range of 0.5V to 10V. It also features an input voltage range of 2.5V to 6V, adjustable soft-start and under-voltage lockout, current limit protection and thermal shutdown protection. The device also features an integrated power-on reset circuitry to ensure proper device initialization and a low dropout voltage of 0.18V when operating in current-limit mode. The device is available in a low profile package and can be soldered directly onto a PCB or a surface-mountable DIP package.

Conclusion

The MP38671DL-LF-P is an integrated PMIC specially designed for low-voltage DC DC switching regulator applications such as portable electronics and wearables. The device is capable of providing fixed-output or adjustable output voltages for battery-powered equipment. The MP38671DL-LF-P features wide input voltage ranges, adjustable output voltages, low quiescent current and a small package size, making it an ideal choice for battery powered applications. The device is also well suited for devices such as LED lights, handheld RFID scanners, medical equipment, industrial equipment and automotive applications.

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