MAX1673ESA+T

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The MAX1673ESA+T is a TDFN-packaged, advanced, single-resistor step-up DC-DC converter with a voltage regulator. It is designed to produce high-efficiency, low-voltage, constant-voltage regulation for easy use in portable systems.

Application Field

The MAX1673ESA+T DC-DC Switching Regulator is designed to provide a constant-voltage, high-efficiency power solution for portable and handheld electronics products, such as cellular phones, PDAs, digital cameras, camcorders, and other battery-powered products. It can also be used in other applications such as automotive, industrial, and medical products.

The MAX1673ESA+T can be used as a programmable power supply to provide power supply voltage regulation in cellular phones, PDAs, digital cameras, and camcorders. It also can could be used to regulate the power supply voltage to boost battery life in portable and handheld electronic products.

Working Principle

The MAX1673ESA+T utilizes step-up DC-DC switching technology to generate a constant output voltage. Its architecture consists of a voltage mode control PWM (pulse width modulation) circuit, an integrated Step-up DC-DC controller, and an N-channel MOSFET for the power switch.

The internal PWM circuit is fed with a selectable operating frequency which helps to reduce current ripple, limit energy consumption and improve overall system efficiency. The DC-DC controller is designed with advanced protection features to provide an optimum performance. The frequency of the PWM can be adjusted to give the required output voltage without the need for external components.

The N-channel MOSFET is used as the power switch, and its purpose is to regulate the current through the inductor according to the programmed voltage. When the voltage at the output is higher than the input voltage, the MOSFET is switched on, allowing current to flow through the inductor and increase the output voltage. Once the output voltage reaches the programmed voltage, the MOSFET is switched off and the inductor current is decreased.

In addition to its high power efficiency, the MAX1673ESA+T utilizes a variety of protective features to ensure the system performance is stable. These include over-current protection, over-temperature protection, and short circuit protection.

Conclusion

The MAX1673ESA+T is an advanced DC-DC switching regulator designed for portable and handheld electronics. It provides an easy-to-use, constant-voltage regulation for both low- and high-voltage applications. Its integrated Step-up DC-DC controller and N-channel MOSFET power switch enable excellent power efficiency and superior performance. The internal PWM circuit also provides frequency adjustment and current ripple reduction. Furthermore, it is equipped with several protection features, including over-current protection, over-temperature protection, and short circuit protection.

The specific data is subject to PDF, and the above content is for reference