MAX17101ETJ+

MAX17101ETJ+ Application Field and Working Principle

The MAX17101ETJ+ is an integrated switching voltage regulator (also referred to as a DC–DC controller) from Maxim Integrated. It is designed to allow dual-voltage operation from a single-output supply by regulating the output voltages using pulse-width modulation (PWM). The MAX17101ETJ+ has an adjustable output voltage range, enabling it to operate over a wide range of input and output voltages.

The main components of the MAX17101ETJ+ are the main power switch, switching controller, and the output voltage regulator. The main power switch is the primary device responsible for regulating the output voltage and current of the converter. The switching controller is responsible for controlling the on-time and off-time of the main power switch, depending on the input and output voltage levels. The output voltage regulator is used to maintain a stable output voltage regardless of changes in the input voltage.

The MAX17101ETJ+ can be used in many applications, including powering microprocessors and ASICs in cellular phones, portable media players, and even small cameras. It can be configured to provide either a fixed output voltage or an adjustable output voltage range between 2.0V and 5.5V. It is capable of delivering output currents up to 500mA, making it suitable for powering many low-power devices. It also features an integrated active-mode bootstrap circuit, making it a good choice for applications that require high-supply accuracy and low shutdown current.

The main working principle of the MAX17101ETJ+ is to regulate the output voltage by controlling the on-time and off-time of the main power switch. When the load increases or the input voltage decreases, the on-time of the main power switch will increase, thereby increasing the output voltage within the voltage regulation range. When the load decreases or the input voltage increases, the off-time of the main power switch will increase, which will decrease the output voltage within the voltage regulation range.

The MAX17101ETJ+ has several features that make it stand out from other DC-DC controllers. It features a burst-mode operation that ensures that the main power switch is closed only when it is needed, thereby reducing power consumption and increasing efficiency. It also has a shutdown function, which allows it to turn off the main power switch during low-load conditions, thus reducing the total power consumption of the system even further.

Conclusion

The MAX17101ETJ+ is a versatile integrated switching voltage regulator that can be used in many applications. It is capable of regulating output voltages over a wide range, while also providing efficient and low-power operation. Its integrated active-mode bootstrap circuit, burst-mode operation, and low-shutdown current make it well-suited for powering many low-power devices.