MP2603EJ-LF-ZX

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MP2603EJ-LF-ZX is a power management integrated circuit (PMIC) that can be used both as a battery charger and an adjustable voltage regulator. It is designed with a low quiescent current consumption feature which makes it suitable for economical applications and portable devices.

Application fields

MP2603EJ-LF-ZX is a two-in-one device that can be used both as a Li-ion battery charger and a voltage regulator. It is an ideal device for portable consumer and consumer electronics applications because of its small size, low power consumption and wide input voltage range. The outputs of the device are adjustable from 4.5V to 18V and can handle the output current up to 500mA. It is suitable for portable products such as smartphones, smartwatches, digital cameras, portable media players, etc.

Working principle

MP2603EJ-LF-ZX is a PMIC with active feedback voltage and current control technology. The device includes a buck converter to provide battery charging, and a buck regulator to provide adjustable voltage, up to 18V with a current capability of 500mA. It is a single-phase system with a pre-regulation voltage and current sensing to ensure the accuracy of regulation. It uses MOSFETs to drive the power loop, and includes overcurrent protection and thermal shutdown protection.

The device consists of three power stages: an input stage, a power stage, and a control stage. The input stage includes an internal switch that reduces the input voltage to generate a regulated voltage, the power stage consists of power MOSFETs that are driven by a Gate Driver from the control stage. The control stage provides the power loop with a closed-loop control.

Conclusion

MP2603EJ-LF-ZX is a versatile PMIC that can be used for both battery charging and adjustable voltage regulating. It can provide a current up to 500mA with a wide range of adjustable output voltages, making it suitable for various consumer and consumer electronics applications. The device features a low quiescent current consumption, making it an ideal choice for economical applications and portable products.

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