BQ500211ARGZR

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Power management integrated circuits (PMICs) are widely used in a variety of applications in modern electronics. The BQ500211ARGZR from Texas Instruments is a linear power management IC designed for portable and consumer applications. This device is used to regulate the power supply voltage in different portable applications, such as cellular phones, laptop computers, digital cameras and camcorders.

The BQ500211ARGZR integrates multiple power supply rails for integrated functions, mainly for voltage regulation, including a single-ended main supply rail (VMAIN) with a minimum current limit of 350mA, a single-ended USB supply rail (VUSB) with a current limit of 250mA, a dual-ended VCC supply rail with a minimum current limit of 100mA and a stand-alone I/O supply rail (VBAT) with a current limit of 30mA. All the supply rails can be independently regulated.

The device features dual input power sources, a major AC adapter and a USB port, allowing users to charge their portable devices through either the ac adapter or USB port. The device also includes coil common mode voltage regulator and integrated low RDSON high-side FETs to interface with the external power sources. The device also offers high peak current as well as fast transient response capabilities, making it suitable for use in portable applications where fast power supply recovery times are required.

The device integrates a fixed-frequency regulation loop to detect the output of the main supply rail, VMAIN. The device is designed to reduce the peak current demand from the AC adapter, which dramatically reduces electromagnetic interference (EMI) from the charger. This device also integrates over-voltage protection, over-temperature protection and brown-out protection.

The BQ500211ARGZR is available in a tiny 8-pin, very thin Quad Flat No-Lead package with an overall package height of 1.2 mm and an ultra-low profile. This device is RoHS compliant and Halogen-free.

In conclusion, the BQ500211ARGZR is a power management IC designed for portable and consumer applications and features input power sources, voltage regulation, over-voltage and over-temperature protection, and EMI reduction. This device is available in an ultra low profile and offers high peak current, fast transient response and low RDSON capabilities.

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