MAX16935RATE/V+T

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The MAX16935RATE/V+T DC-DC switching regulator (as part of a broad portfolio of voltage regulators, available from Maxim Integrated) is widely used in a number of applications, from smartphones to industrial and automotive systems. At its core, the regulator is a step-down DC-DC converter that takes in a high input voltage and provides a regulated, fixed-output voltage. The device is suitable for wide variety of low-power applications, including machines and equipment that require ultra-low power consumption.

Applications

The primary application of the MAX16935RATE/V+T is in mobile and cellular devices, such as smartphones, tablets, and other Internet of Things (IoT) devices. It can also be used to provide supply voltages in compact industrial and automotive applications, due to its high levels of energy efficiency and small size. Additionally, it is able to support the power needs of a broad range of applications, such as:

• Storage devices
• Wireless networks
• Sensors
• Hybrid vehicles
• Medical devices
• Networking products
• Power over Ethernet (PoE)
• Audio systems

Features and Benefits

The MAX16935RATE/V+T offers a few key advantages over other types of voltage regulators. It is a high efficiency, low quiescent current regulator that can handle both wide input and output voltage ranges. At the same time, it also has a wide operating temperature range (from -40°C to +125°C). Furthermore, it features an integrated thermal foldback protection, which helps to protect the device from thermal overloading. In addition, the device can provide an output voltage of up to 6.5V.

The integration of a power train regulator topology also allows for smooth and efficient switching between modes, with no external components required. As a result, the device helps to minimize board area, cost, and power consumption. This is advantageous for ultra-low power and long-term performance in portable, battery-operated products.

The device also offers an adjustable current limit of up to 13A, allowing it to efficiently provide power to multiple devices. Additionally, it offers an internal power-good indication, which helps with monitoring system health and providing additional safety to any application.

Working Principle

The MAX16935RATE/V+T DC-DC switching regulator operates by controlling the output voltage using a Regulating Pulse Width Modulation (RPWM) technique. The output voltage is maintained through the use of an integrated error amplifier, which compares the actual output voltage to a reference voltage. When the output voltage needs to be adjusted, the duty cycle of the RPWM signal is used to lower or raise the voltage as necessary. This in turn causes the integrated power MOSFETs to be turned on or off as necessary, allowing for efficient step-down conversion of the input voltage.

Additionally, the device also features a SenceFET voltage and current sense circuit, which helps to ensure that the current through the MOSFETs does not exceed the preset level. In this way, the device is able to monitor the current loading conditions and make adjustments to the output voltage as needed to ensure that the device doesn’t go into fault state.

Conclusion

The MAX16935RATE/V+T DC-DC switching regulator is a useful device for any application requiring low power consumption and a high level of energy efficiency. It offers a wide range of features, such as an adjustable current limit, integrated temperature protection, and SenceFET current sensing. In addition, its integrated RPWM technique ensures that the output voltage can be accurately and efficiently maintained, allowing the device to provide reliable, long-term performance.

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