MCP1642D-18I/MC

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The MCP1642D-18I/MC is a DC-to-DC switching regulator with a current-mode, fixed-frequency control. It is a very versatile device for a wide range of DC-DC power conversions. Its numerous features, such as input under-voltage and over-voltage protection, as well as a shut-down period at start-up, allow it to be used in a variety of applications.

Applications

The MCP1642D-18I/MC can be used in applications such as distributed power supplies, telecom, automotive, and portable electronic products. It is also used in switching power supplies, battery chargers, and DC-DC converters. The MCP1642D-18I/MC offers a wide range of current limits, high-efficiency, low input/output voltage, and extremely low noise and ripple. Additionally, it is also suitable for hot-swap applications.

Features

The MCP1642D-18I/MC boasts a number of features. These features include:

• Current-mode switching for fast transient and dynamic response.
• Adjustable operating frequency from 200kHz to 1MHz.
• Wide input/output voltage range.
• Programmable output current limit.
• High switching efficiency (up to 95%).
• Protections for input under-voltage, over-voltage, output overload, and thermal overload.
• High current drive (3A).
• Soft-start.
• Shut-down period at start-up.
• Enable/disable control.

Working Principle

The MCP1642D-18I/MC is a DC-to-DC switching regulator with a current-mode, fixed-frequency control. The working principle of the MCP1642D-18I/MC is simple: it reduces the input voltage to the required output voltage. To achieve this, the MCP1642D-18I/MC uses a switching technique wherein high-side and low-side MOSFETs are alternately switched on and off at a fixed frequency, allowing the inductor to store energy in one direction and discharge it in the other. This results in a regulated output voltage.

Additionally, the MCP1642D-18I/MC includes several protection features to safeguard against various fault conditions, such as input under-voltage and over-voltage, output overload, and thermal overload.

Conclusion

The MCP1642D-18I/MC is a versatile DC-to-DC switching regulator with numerous features. It offers high switching efficiency, adjustable frequency, wide input/output voltage, current limits, and protection against various fault conditions. It is an ideal device for use in a variety of applications, such as distributed power supplies, telecom, automotive, portable electronic products, switching power supplies, and battery chargers.

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