MCP1642DT-33I/MC

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Introduction

The MCP1642DT-33I/MC is a switching regulator that is commonly used for the areas of power management and voltage regulation. It belongs to the family of DC/DC switching regulators which are efficient regulators that are typically used in energy harvesting application, battery management, and solar-powered systems. The MCP1642DT-33I/MC is offered in a compact 10-lead package that offers low-power and high-efficiency performance enabling its use in space-restricted designs.

Operation

The MCP1642DT-33I/MC contains the essential components necessary for operation. It utilizes a buck converter having an error amplifier, a comparator, an oscillator, a PWM latch and two cores.

The MCP1642DT-33I/MC operates in a voltage mode where it samples the feedback voltage and compares it with the reference voltage to generate an error signal. This error signal is used to control the switching frequency and the duty cycle of the output. The two cores act as either an inverter or a synchronous rectifier/step-down converter depending on the input/output voltage range.

Application

The broad range of input supply voltages (1.5 - 5.5V) makes the MCP1642DT-33I/MC useful for many different applications. It is primarily used for energy harvesting applications, battery management systems, and solar-powered systems such as solar chargers and LED lighting. The output of the device can be adjusted for use with a wide range of devices as it supports output voltages as low as 0.6 - 5.5V.

The high efficiency and low quiescent current of the MCP1642DT-33I/MC makes it ideal for battery powered applications. It also supports pulse-width modulation (PWM) and pulse frequency modulation (PFM) providing flexibility in controlling output voltage and current. In addition, it can operate in the 1mW standby mode giving it excellent power savings in battery operated circuits at low load current.

Advantages

The small size, high efficiency, and low quiescent current make the MCP1642DT-33I/MC ideal for energy related applications. In addition, it supports a broad range of input and output voltages, adjustable output voltages, and pulse-width modulation and pulse frequency modulation that enables precise control of the output and maximum system efficiency. Lastly, its 1mW standby mode enables power saving for extended battery life in battery powered applications.

Conclusion

The MCP1642DT-33I/MC, as part of the DC/DC switching regulator family, is an efficient and versatile device. Its operation is simple and intuitive, operating on a voltage modulation scheme with two cores acting either as an inverter or a synchronous rectifier/step-down converter. The wide range of voltages and support for both PWM and PFM make this device ideal for energy applications, battery management systems, or solar-powered systems. In addition, its 1mW standby mode gives it an advantage in battery powered operations.

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