LP38513S-1.8EV

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Introduction

The LP38513S-1.8EV is a member of the Evaluation Boards - Linear Voltage Regulators family. It is a robust and reliable power supply solution consisting of several components. The LP38513S-1.8EV offers fine adjustment capability, electrostatic protection, thermal overload protection, and wider input voltage operating conditions than other members of the family. This article will provide an overview of the LP38513S-1.8EV application field and working principle.

Application Field

The LP38513S-1.8EV is designed as a complete power supply circuit for use in applications such as industrial and medical equipment, consumer appliances, and digital consumer electronics. It is suitable for drives with very low voltage requirement, and can quickly, easily and reliably be used for a variety of them.

The LP38513S-1.8EV provides fault-tolerant power with excellent thermal protection. It offers a low-cost solution for light-load applications where current consumption needs to remain low. It is a highly integrated power supply chip with programmable voltage and current tolerance functions, allowing a self-adjustment of the voltage and current outputs with respect to the input voltage. Additionally, it also contains many circuit protection features, including short-circuit protection, over-voltage protection and over-temperature protection, making this series suitable for high reliability and safety considerations.

Working Principle

The LP38513S-1.8EV power supply circuit consists of a series of components: power MOS, an inductor, a diode, a filter capacitor, and a voltage regulator. The power MOS digitaly controls the voltage output produced by the circuit. When an input voltage is applied, current flows through the inductor and diode, which stores energy in the form of a magnetic field. The diode prevents any current from flowing back to the input side, causing the inductor to discharge the stored energy. The filter capacitor then prevents any further sudden fluctuation in the voltage output. Finally, the voltage regulator is used to stabilize the output voltage, ensuring that the output voltage is within a set range.

The LP38513S-1.8EV also provides constant voltage and current regulation features. Its voltage regulation feature allows the user to adjust the output voltage by setting a frequency-dependent resistor, and the current regulation feature is based on feedback control. By adjusting the current by setting a current sensing resistor, the output current can be set. This ensures a constant output current as well as a constant voltage output at all times.

Conclusion

The LP38513S-1.8EV is a reliable and robust member of the Evaluation Boards - Linear Voltage Regulators family. It offers wide operating input voltage range and fault-tolerant power delivery. The LP38513S-1.8EV is suitable for a wide range of industrial and medical equipment, consumer appliances, and digital consumer electronics. The power MOS, inductor, diode, filter capacitor, and voltage regulator form a complete power supply circuit with providing constant voltage and current regulation features that allow the user to quickly and easily adjust the voltage and current output as per the input voltage.

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