MCP1702T-4002E/CB

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Linear voltage regulators are one of the most common types of power management integrated circuits (PMICs), and they are generally used to protect electronic devices from power surges and to provide an error-free voltage stack. The MCP1702T-4002E/CB is a type of linear voltage regulator specifically designed to regulate non-isolated, bidirectional DC/DC voltage conversion, as well as to improve power stability and derating capabilities. In this article, we will discuss the application fields and working principles of the MCP1702T-4002E/CB linear voltage regulator.

Application fields

The MCP1702T-4002E/CB is designed for a variety of applications, but its primary purpose is to provide a regulated voltage supply for small form factor, low power, portable or automotive electronics. It is primarily used in DC-DC chargers, AC-DC adapters, lighting drivers, consumer electronics, medical devices, and wireless power amplifiers. In addition, it can also be used in industrial control systems and LED displays.

The MCP1702T-4002E/CB offers a wide input voltage range of 4.5V to 20V and can output a regulated voltage of 3.3V to 28V. It offers high efficiency with low quiescent current, low dropout, and low thermal noise. Furthermore, it contains integrated protection features such as short circuit, over-temperature, over-current, output over-voltage and reverse battery protection.

Working principles

The MCP1702T-4002E/CB is a highly efficient three-terminal linear voltage regulator that can regulate non-isolated, bidirectional DC/DC voltage conversion. It utilizes a P-MOSFET linear regulator which increases efficiency without the need for external components. The operating principle behind the linear voltage regulator involves the use of a voltage divider circuit to regulate the voltage output.

The MCP1702T-4002E/CB first senses the input voltage and compares it to the internal reference voltage. Depending on the sensing results, it then adjusts the duty cycle of an internal MOSFET, which acts as a series pass transistor in order to regulate the output voltage. A feedback loop ensures that the output voltage remains constant even when the input voltage varies.

The linear voltage regulator also includes an over-voltage protection circuit that monitors the output voltage and shuts off the regulator when the output voltage exceeds a certain level. This prevents any damage to the circuit due to excessive voltage. The MCP1702T-4002E/CB features a low dropout voltage and low quiescent current, which makes it ideal for applications where low current consumption is important.

Conclusion

In conclusion, the MCP1702T-4002E/CB is a highly efficient three-terminal linear voltage regulator that is ideal for applications where low current consumption, high efficiency, low dropout and over-voltage protection are essential. Its wide input voltage range and high accuracy output voltage make it perfect for use in low power, portable and automotive electronics. In addition, its integrated protection circuit prevents any damage to the circuit due to over-voltage.

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