MAX5035BUPA+

Voltage - Output (Min/Fixed):	5V
Base Part Number:	MAX5035
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	125kHz
Current - Output:	1A
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	76V
Voltage - Input (Min):	7.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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Overview and Introduction

The MAX5035BUPA+ is a programmable and integrated DC-DC converter module, which provides a highly efficient and cost-effective solution to system designers. It belongs to PMIC (Power Management IC) voltage regulators and DC-DC switching regulators, and is a next-generation application field in the industry. This paper will shed light on the application field and working principle of MAX5035BUPA+.

Application Field of MAX5035BUPA+

MAX5035BUPA+ is suitable for applications in WiFi/802.11, video/audio, automotive, industrial and medical applications. More specifically, popular applications of MAX5035BUPA+ include but not limited to power supplies, battery-service backup subsystems, automotive engine control, server uplink and general point-of-load power management. With a power stage range of 0.5V to 6V, MAX5035BUPA+ gives designers the flexibility and scalability they need to implement semiconductor technology efficiently and cost-effectively.Moreover, it is ideal for high-efficiency requirements, especially in thermal and acoustical-sensitive environments such as the mobile segment. It realizes high-performance, high-efficiency and accurate current-sharing performance with advanced features, including over-current protection, over-temperature protection, short-circuit protection, and ultra-low standby channel current. This allows designers to support their designs in extreme environments.MAX5035BUPA+ provides high current density, low device resistance and low electromagnetic interference (EMI). It offers accurate output voltage regulation and fast transient response, and offers valuable features for communication interface control.

Working Principle of MAX5035BUPA+

The MAX5035BUPA+ is a DC-DC switching regulator with a constant on-time, current-mode control architecture. This feature helps the converter to meet the requirements of many different converters. The MAX5035BUPA+ can be used to regulate output voltages up to 6V, at output current up to 6A.The switching regulator inside the MAX5035BUPA+ works in constant on-time, pulsed current mode. The operation starts with a current-sense signal initiating a primary switching to generate a high voltage level. The high voltage level has to be reflected into the secondary side elements, to generate a lower output voltage from a higher input voltage. During the current ramp up caused by the primary switching, the comparator inside MAX5035BUPA+ senses the current and compares it to the programmed reference voltage. When the two levels match, the comparator triggers a shut-down command, which in turn stops the primary switching. The output voltage in the secondary side will then go down, and the same current-sense signal will start the primary switching cycle again.The switching frequency is determined by the setting of the external resistor employed, and may be adjusted from 25 KHz to 750 KHz. The switching operating frequency can be changed to optimize the efficiency of the converter, or to reduce electromagnetic interference.

Conclusion

In conclusion, this paper has presented the application field and working principle of the MAX5035BUPA+. It belongs to the PMIC voltage regulators and DC-DC switching regulators, and it is suitable for a variety of applications in WiFi/802.11, video/audio, automotive, industrial and medical, as well as many challenges. It has a great power stage range of 0.5V to 6V, offering high efficiency and fast transient response, and has a built-in current-mode control architecture for additional features. With proper application, the MAX5035BUPA+ can greatly reduce power consumption and save cost for consumers.

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