AP2171AMP-13

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PMIC (Power Management IC) integrates both analog (such as linear and switching regulator) technologies and digital control methods, concerning various loads and supplies, enabling systems to be operated in an economical and efficient manner. power management products commonly fall into three broad categories – power distribution switches, load drivers and miscellaneous. Among them, power distribution switches offer high-performance and power conversion options, allowing designers to more efficiently distribute and manage power, load drivers provide a wide range of current programming capabilities, and miscellaneous products support a variety of design needs. In this article, we will discuss one type of power management IC – AP2171AMP-13, which belongs to the category of power distribution switch.

The AP2171AMP-13 is an ultra-low power multiple high-side switches. Its main features include up to 13 channels, low rds(on) down to 10 mΩ, low-loss diode, wide supply range from 1.8 V to 5.5 V, high current of 300mA per channel, Thermal shut down (TSD) and Under Voltage Lockout (UVLO) protection, POR, and slew rate control. The product has a wide range of applications, such as TV/TV boxes, personal computers, fans and air purifiers, lighting, and other home appliances.

The working principle of the AP2171AMP-13 can be divided into two parts: control signal and power signal. With respect to the control signal, an 11-bit digital signal is used to control up to 13 power channels and performs power conversion, while respecting low power and high robustness requirements. Meanwhile, the power signal consists of an enable signal, voltage signal and power signal. The enable signal can be used to enable or disable all channels of the device. The voltage signal can be used to control the voltage level of the power signal, thus supporting the low-loss diode function. Last but not least, the power signal contains a signal with the appropriate amplitude to drive the corresponding devices.

In summary, the AP2171AMP-13 is one kind of power distribution switch, which is designed for high performance and power conversion requirements, offering up to 13 channels a low rds(on) down to 10 mΩ and a wide supply range from 1.8 V to 5.5 V with a high current of 300mA per channel. It can be applied in a wide range of applications, such as TV/TV boxes, personal computers, fans and air purifiers, lighting, and other home appliances. It mainly works via 11-bit digital signal to control up to 13 power channels, while respecting low power and high robustness requirements.

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