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Introduction

SN1208058RHLR, is a highly efficient, cost-effective DC-to-DC step-down integrated circuit with a maximum output current of at least 8 A. It offers some of the highest levels of efficiency in a very small package, and is suitable for a variety of power management applications. SN1208058RHLR is part of the PMIC (Power Management Integrated Circuit) Voltage Regulators and DC DC Switching Regulators.

Application Field

This SN1208058RHLR DC-DC switch regulator offers high efficiency and cost performance for a wide range of applications, including personal and home electronics, industrial and embedded equipment, automotive electronics, wireless communications and power management systems. Additionally, it can be used with a variety of input and output voltages and over a wide temperature range, making it ideal for cost-sensitive embedded applications.

Advantages of SN1208058RHLR

This DC-DC switching regulators offer advanced features and capabilities, including low RDS(ON) , low standby current, high efficiency, good transient response and low EMI noise levels. Additionally, it has excellent gate characteristics, making it both fast and quiet in operation.The SN1208058RHLR has a wide range of power-management features to take maximum advantage of its low stand-by current and wide input and output voltage range. These features include adjustable output voltage, adjustable soft-start, adjustable output current limit and thermal protection.

Efficiency and Cost

This DC-DC switching regulators offers a high efficiency across its input and output range, with 8A maximum output current and up to 86% efficiency. This level of efficiency makes it suitable for a variety of cost sensitive applications. Additionally, this device has an improved cost advantage, as demonstrated by its low package size and ease of use.

Working Principle

The SN1208058RHLR DC-DC switching regulator works by taking a DC input voltage and converting it into a regulated output. This is achieved through a closed-loop control process, where the output of the device is continuously monitored and feedback is used to regulate the output voltage. The device consists of a control circuit and an over-current and thermal sensing circuit to provide protection against excessive current or temperature. The device also has a pre-configured, integrated soft-start circuit, which when enabled, allows the output voltage to be slowly increased on start-up.

Components in the circuit

The SN1208058RHLR DC-DC switching regulator is based around a few key components. These include a power MOSFET, a synchronous buck controller and a PWM comparator. The power MOSFET is used to switch the voltage between the input and output, while the synchronous buck controller is used to generate the PWM signal to control the MOSFET. Finally, the PWM comparator is used to compare the output voltage and feedback voltage, and to generate the switching signal.The device also includes several protection features, which are necessary for a reliable and safe operation. These include an over-voltage protection circuit and a thermal protection circuit.

Conclusion

The SN1208058RHLR DC-DC switching regulator is a highly efficient and cost-effective device, suitable for a range of power management applications. It offers excellent gate characteristics, a wide input and output voltage range, low stand-by current and low RDS(ON). Additionally, the device has a range of features designed to increase efficiency, such as adjustable output voltage, adjustable soft-start and adjustable output current limit. Furthermore, it has comprehensive protection features including an over-voltage protection and a thermal protection circuit. Overall, this device is well suited to cost-sensitive embedded applications, and can offer improved cost performance over competitors in its class.

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