S-80124BLPF-JEJTFG

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Power management Integrated Circuits (PMIC) offer significant advantages over external voltage regulation circuitry with respect to size, cost, and the required number of components. The S-80124BLPF-JEJTFG is one example of a PMIC. This component is suitable for a wide range of power management applications such as in automotive systems, communications equipment, industrial electronics, and medical devices. This article provides an overview of the S-80124BLPF-JEJTFG, its application fields, and working principle.

Overview of the S-80124BLPF-JEJTFG

The S-80124BLPF-JEJTFG is a component of the power management integrated circuits (PMICs) family manufactured by STMicroelectronics. The component is a low-dropout (LDO) voltage regulator with adjustable output voltage ranging from 0.8 a to 6.0.V. The output voltage is set by an external resistor divider, which can be adjusted over the operating temperature range of -40 to +185 °C. The component has a low quiescent current of 100uA for typical conditions, which is required to maintain high efficiency. It is also designed to provide superior thermal stability and excellent noise performance. The S-80124BLPF-JEJTFG has a wide input voltage range of 4.5 V - 18 V and it is capable of providing up to 500 mA output current.

The component features built-in over-current protection, programmable output-voltage accuracy, and a power-good (OK) output. This means that the device will interrupt the power supply if an over-current condition is detected and will also indicate the power supply\'s status through the OK output. It also includes reverse-current protection and a thermal shutdown feature to help protect the component in extreme conditions.

Applications Of S-80124BLPF-JEJTFG

The S-80124BLPF-JEJTFG is suitable for a range of applications including, but not limited to: automotive systems, communications equipment, industrial electronics, and medical devices. In automotive systems, the component can be used to regulate the power supply of the vehicle’s electrical systems, such as infotainment, body, or drivetrain systems. In communications equipment, the component can be used in mobile phones, tablets, or routers to regulate the power supply for the device’s digital circuitry. In industrial electronics, the component can be used in micro-controllers, sensors, and other circuit components to provide reliable and efficient power management. Finally, in medical devices, the component can be used to regulate the power supply of pacemakers, defibrillators, and other medical components.

Working Principle of S-80124BLPF-JEJTFG

The basic operation of the S-80124BLPF-JEJTFG is based on the standard voltage regulator circuit. The component provides an adjustable output voltage by using an internal voltage reference as input and a resistor divider as output. The current flowing through the resistor divider is inversely proportional to the output voltage. This means that if the resistance of the divider is reduced, the output voltage is increased and vice versa. The device also includes built-in over-current protection, reverse-current protection, and thermal-shutdown features to extend its life and maintain stability.

In a typical application, the S-80124BLPF-JEJTFG is powered by an input voltage and an external resistor divider is used to set the desired output voltage. The output voltage is then fed to the system’s circuitry, which is regulated by the component. The component will then activate the over-current protection if an over-current condition occurs. The device will then shut off the output voltage until it is reset. Finally, the device will also shutdown if the temperature exceeds its specified limit.

Conclusion

The S-80124BLPF-JEJTFG is an excellent example of a PMIC designed for a range of applications. This component is suitable for automotive systems, communications equipment, industrial electronics, and medical devices. The component features adjustable output voltage, a wide input voltage range, low quiescent current, and various protection features which make it ideal for a range of power management applications. Additionally, the device\'s working principle is based on the standard voltage regulator circuit and its operation is relatively easy to understand.

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