MP1470BGJ-P

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MP1470BGJ-P Application Field and Working Principle

MP1470BGJ-P is a DC-DC switching regulator from the family of PMIC voltage regulators. It is targeted primarily for battery-powered and systems where high efficiency and small size are required.

Features

MP1470BGJ-P provides best-in-class features, including ultra-low power dissipation, wide input voltage range, and adjustable output current limit. This DC-DC switching regulator is designed to minimize power loss in standby and operate with a very low quiescent current.

• Ultra low power dissipation
• Wide input voltage range
• Programmable and adjustable output current
• Ultra low quiescent current

Application Field

MP1470BGJ-P is ideal for portable or battery powered applications such as mobile phones, digital audio players, and other hand held devices. This DC-DC switching regulator is also suitable for many different consumer and industrial applications, including medical electronics, as well as general-purpose line supply/load-supply/load switches for consumer or industrial applications.

Working Principle

MP1470BGJ-P works by converting an input DC voltage into an output DC voltage. The regulator acts as a switch between the battery and the load, allowing the current flow to be regulated by adjusting the duty cycle. This allows the output voltage to remain constant while maximizing the efficiency of the battery and load by minimizing the power wasted by the switching regulator.

The MP1470BGJ-P consists of an input voltage regulator (IVR), a regulated current source (RCS), and a driver circuit. The IVR receives the battery voltage and regulates it to a given value. The regulated current source (RCS) is the main control element, and is used to control the amount of current flowing through the switch. Finally, the driver circuit controls the output voltage by regulating the duty cycle of the switch.

In normal operation, the input voltage is regulated by the IVR and it is fed to the RCS. The RCS regulates the current flowing through the switch, and the driver circuit controls the output voltage. This is done by varying the duty cycle of the switch, allowing for precise regulation of the output voltage.

To adjust the output voltage, the RCS can be externally programmed by setting the current limit. The on-board switches are used to set the current limit, allowing for easy adjustment of the output voltage. Furthermore, the current limit can be adjusted even while the MP1470BGJ-P is operating.

Conclusion

The MP1470BGJ-P is a DC-DC switching regulator from the family of PMIC voltage regulators. It is designed to minimize power loss in standby and operate with a very low quiescent current. The device can be used in many applications, including mobile phones, portable digital audio players, and other handheld devices. It provides best-in-class features such as wide input voltage range, adjustable output current limit, and ultra-low power dissipation.

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