RT8290GSP

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As mobile devices get smaller and their power requirements increase, the need for power management integrated circuits (PMICs) that can save power and maintain a stable power output is growing. The RT8290GSP is a highly integrated PMIC (power management integrated circuit) that can provide programmable low power, high efficiency power regulation for mobile phone and other products. It is a DC-DC switching regulator, fully programmable and adjustable, that is optimized for high power applications requiring high efficiency.

The RT8290GSP is specifically designed for mobile phones, laptop/netbooks, and other portable devices. It is well suited for space-constrained applications with one of its main features being a compact size. Its input voltage range makes it suitable for both single and multi-cell battery applications—from 2.5V to 5.5V in single cell and 3.6V to 17V in multi-cell applications. It can deliver up to 3A of output current and offers an output voltage range of 0.6V to 4.0V. The RT8290GSP is POWERgood output monitoring capable and features an adjustable over-voltage, over-temperature and over-current protection.

The RT8290GSP DC-DC switching regulator has integrated switched capacitor technology to increase efficiency. This helps to reduce the size and cost of the PMICs. The switching capacitor creates a smooth junction between the inductor and the output capacitor, which helps to improve the efficiency of the converter. The switching frequency can be adjusted to optimize for efficiency, power and noise. The system can also be dynamically switched between PWM mode and Power Save mode for improved system efficiency.

The RT8290GSP has consists of a Single Loop PWM controller and a high frequency, on-chip power MOSFET switch. This combination provides higher efficiency over a wide input voltage range while minimizing the external component count. The PWM controller uses a fixed frequency peak current mode control to regulate the output voltage across a wide range of load conditions. This makes it well-suited for portable device applications that require high efficiency, low noise and fast transient response.

The RT8290GSP PMIC also features a wide range of package options, including a solution in ceramic substrate and a standard QFN surface mount package. Both have integrated power management information ready for externally connected microprocessors for system monitoring. Additionally, the RT8290GSP includes various protection features. It has input under-voltage lockout (UVLO) protection and an adjustable over-voltage protection (OVP). It also offers an adjustable over-temperature protection (OTP) and an adjustable over-current protection (OCP). It also includes an internal soft-start and an output disconnection to further reduce system cost, size and complexity.

In summary, the RT8290GSP is a highly integrated DC-DC switching regulator that combines high efficiency and output power, optimized for mobile phone and other applications. It is designed with integrated switched capacitor technology to reduce size and cost, adjustable switching frequency and efficient power reduction by dynamically switching between PWM and Power Save modes. The RT8290GSP features a wide range of packages, a wide input voltage range and integrated power management information. It also includes various protection features such as input under-voltage lockout, adjustable over-voltage protection, over-temperature protection and adjustable over-current protection.

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