FAN3989MLP8X Integrated Circuits (ICs)

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FAN3989MLP8X is a highly integrated 1A regulator, providing optional load current and thermal management for low power portable applications such as cell phones, tablets, and cameras. With excellent EMI and high efficiency, it can help portable device manufacturers rapidly enter the market.

Introduction of FAN3989MLP8X

FAN3989MLP8X is a power management IC (PMIC) that provides excellent EMI, low ripple and high efficiency of 1A regulators. It is a member of the FAN3989 family of power management devices and is suitable for portable devices such as cell phones, tablets, and cameras. FAN3989MLP8X\'s high integration, light weight, low voltage and wide temperature range make it especially suitable for low power portable applications.

FAN3989MLP8X can provide a regulated output to the regulated system, which is an excellent option for providing a stable voltage supply for microcontrollers and digital signal processors. The integrated output shutoff, LDO (low drop-out) regulator, small and light package and fast start-up time provide a large number of design flexibility. In addition, the chip is equipped with FET package, which can provide protection against overheating and overvoltage.

Applications of FAN3989MLP8X

The FAN3989MLP8X is widely used in low power portable applications such as mobile phones, tablets, and cameras. The device provides an efficient 1A regulator with an adjustable output voltage, which is suitable for powering microcontrollers, digital signal processors and various other electronic devices. Additionally, the device\'s high efficiency and excellent EMI performance make it attractive for low power applications.

The integrated thermal management module in FAN3989MLP8X provides protection from thermal overload and offers designers the flexibility to accurately control the power delivery. Also, the output of the FET package can provide superior protection from over voltage and over temperature. Moreover, it is suitable for battery management applications, like battery charging and load switching, due to its low quiescent current of only 1.5uA.

Working Principle of FAN3989MLP8X

The FAN3989MLP8X device has a high efficient 1A regulator with an adjustable output voltage. It uses a two-stage voltage regulation design with a linear regulator as the first stage and a pulse width modulation (PWM) controller as the second stage. The power stages of the device are designed to supply the load with the optimal level of power with minimal power losses. The chip includes an integrated switch in order to minimize the number of external components.

The device also features thermal management capabilities to protect the chipset from thermal overload. The chip can shut off the power supply at a predetermined temperature, and subsequently remain in shutdown until a safe operating temperature is achieved. A sensor detects the ambient temperature, and a reference voltage is generated by the thermal management module, which is compared with the external temperature. If the external temperature crosses the set threshold then the output shuts off. When the temperature returns to a safe level, the output is resumed.

The FAN3989MLP8X supports a wide input voltage range from 2.5V to 16V and its output voltage can be adjustable as required. The device is available in 8-pin MLP (shrink Small Outline) packages and provides 3.3V/1A output with 12V input, and 1.8V/1A output with 5V input.

Conclusion

The FAN3989MLP8X is a highly integrated PMIC, especially suitable for portable applications such as mobile phones, tablets, and cameras. It has thermal management capability, excellent EMI and high efficiency. With its adjustable output, low quiescent current and wide input voltage range, it is ideal for battery management applications such as battery charging, load switching and other power management duties.

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