MAX17499BEUB+

MAX17499BEUB+ Application Field and Working Principle

The MAX17499BEUB+ is a PMIC (Power Management Integrated Circuit) featuring a non-isolated voltage regulator providing voltage coaching and control. It is specifically designed for DC/DC switching controller applications as it provides a precise voltage monitor, linear/PWM switch-mode control circuit, and current-sense monitoring. The MAX17499BEUB+ gives designers the versatility to control and switch a wide variety of systems and power architectures using a single controller.

Features & Benefits

The MAX17499BEUB+ DC/DC switching controller has several benefits and features:

• Adjustable voltage regulation - The voltage regulation can be adjusted through the use of external resistors and capacitors.
• Linear Remote Sense - This feature allows for real-time control of the output voltage through a remote sense circuit.
• Adaptive On-Time Oscillator - This function helps to reduce the power losses in the system and provides better transition performance in the transition between low and high load conditions.
• Current-Sense Inputs - These inputs provide the feedback necessary to control the output voltage.
• Sense-Voltage Monitors - These monitors allow the controller to measure the actual output voltage and compare it with the desired voltage level.
• Integrated Soft-Start - This feature helps to reduce the inrush current at power-up and allows for a smooth start-up.

Applications

The MAX17499BEUB+ PMCDC/DC switching controller is suitable for a wide range of applications. These include:

• Portable Electronics - The MAX17499BEUB+ switching controller is ideal for portable applications, where it can directly supply the system with the desired DC voltage.
• Telecommunications - The MAX17499BEUB+ is also suitable for telecommunication applications, where it can be used as a voltage coach for remote sensing applications.
• Consumer Electronics - The MAX17499BEUB+ switching controller is also suitable for a variety of consumer electronics applications, including those in the audio, video, and automotive industries.
• Test Equipment - The MAX17499BEUB+ is also suitable for a range of test equipment applications, where it can be used to control the output voltage.

Working Principle

The MAX17499BEUB+ DC/DC switching controller operates on a principle of controlling the output voltage by regulating the input voltage. It consists of a voltage regulation circuit and a switching circuit. The voltage regulation circuit is responsible for controlling the output voltage, while the switching circuit is responsible for switching the input voltage between the load and the input capacitors. The controller then adjusts the voltage level by increasing or decreasing the duty cycle of the switch.

The controller also has current-sense inputs, which provide feedback of the actual voltage level at the output. This feedback is used to control the output voltage, either by increasing or decreasing the duty cycle of the switch. The controller also has a Sense-Voltage Monitor, which helps the controller measure the actual output voltage and compare it with the desired voltage level.

In addition to the voltage coaching and control features, the MAX17499BEUB+ also offers thermal shutdown and over-current protection, making it suitable for a variety of applications. The MAX17499BEUB+ is specifically designed to provide a reliable and robust solution for controlling DC/DC switch-mode power supply architectures.

Conclusion

The MAX17499BEUB+ is a PMIC featuring voltage regulation and current-sense control. It is suitable for a wide range of DC/DC switching controller applications, from portable electronics to test equipment. The integrated features make it a reliable and robust solution for controlling DC/DC switch-mode power supply architectures.