PM8903

Voltage - Output (Min/Fixed):	0.6V
Base Part Number:	PM8903
Supplier Device Package:	16-VFQFPN (3x3)
Package / Case:	16-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-25°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	1.1MHz
Current - Output:	3A
Voltage - Output (Max):	6V
Series:	--
Voltage - Input (Max):	6V
Voltage - Input (Min):	2.8V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tube

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PM8903 Application Field and Working Principle

PMIC (power management integrated circuit) technology has been rapidly advancing recently and the implementation of PM8903 is one of the most promising advances. PM8903 is a DC-DC switching regulator, which is primarily designed to provide a highly efficient power conversion solution. PM8903 applies advanced technology to regulate power in applications such as portable devices, automotive systems, industrial controls, and other power-sensitive applications. In this article, we will discuss the application field and working principle of PM8903.

Application Field

PM8903 is well-suited for any application that requires power conversion and regulation for portable devices, automotive systems, and industrial controls. It is especially capable of supplying power to battery-operated devices. PM8903 also offers power delivery from a variety of battery types, including rechargeable Li-ion and Li-polymer batteries. Moreover, it is able to provide power from vehicle batteries and from industrial power supplies.Applications for PM8903 include wearables, smart meter ICs, mobile communications systems, baseband systems, LED drivers, and audio amplifiers. Additionally, the PM8903 can be used in digital cameras, point of sale systems, high-efficiency motors, and power control applications.

Working Principle

PM8903 is a DC-DC switching regulator. This type of regulator works by using an external switch to convert DC input voltage into AC. This AC is then transformed into a DC output voltage with the help of a filter network. The output voltage is regulated in order to maintain stability and efficiency.Input and output voltages of the PM8903 are adjustable. The input voltage range can be between 4.2V and 6.2V and the output voltage range can be between 0.7V and 5.5V. The PM8903 also has a wide range of output current, ranging from 1.0 to 6.0A. The maximum efficiency of the PM8903 can be as high as 90%.The PM8903 also features a comprehensive set of protections to ensure secure operation. These protections include over-temperature protection, output current protection, under-voltage lockout, over-voltage protection, and short-circuit protection.

Conclusion

PM8903 is a DC-DC switching regulator. It is particularly suitable for power conversion and regulation in such applications as portable devices, automotive systems, and industrial control systems. PM8903 provides an adjustable input voltage range of 4.2V-6.2V and adjustable output voltage range of 0.7V-5.5V. Moreover, it offers a comprehensive set of protection features for secure operation. PM8903 is an excellent choice for a variety of power management applications.

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