MAX17501BATB+

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

DC-DC switching regulators, also known as DC-DC converters, are generally used to convert electrical energy from one form to another and to produce a required output voltage from a given input voltage, usually at higher efficiency than linear regulators. The MAX17501BATB+ is a dual, synchronous step-down DC-DC voltage regulator that can operate up to 4A output current. It integrates a high voltage power MOSFETs with current sensing to create a 3-channel buck regulator capable of providing a wide output voltage range.

The MAX17501BATB+ allows for efficient and accurate regulation of current or voltage across two outputs, with a selectable master/slave mode. The chip integrates pulse-by-pulse current sensing, accuracy current limit protection, input voltage sensing, and output voltage tracking, making it well-suited for applications such as point-of-load power supplies and motor controllers. The device is designed to accommodate voltage and current requirements up to 28V and 4A, respectively, with adjustable voltage and current settings.

Features of the MAX17501BATB+

• Wide input voltage range (4.0V to 28V)
• Output voltage adjustment up to 25V
• Adjustable switching frequency from 200kHz to 1MHz
• Integrated high voltage power stages with current sensing
• Independent output control
• Soft-start feature with adjustable delay
• Built-in OVP and UVLO protections
• Perfect noise filtering due to the low on-resistance

Application Fields and Working Principle of the MAX17501BATB+

The MAX17501BATB+ can be used to provide regulated output voltage in applications that require high current and high efficiency, such as adjustable laboratory power supplies, point-of-load power supplies, DC-DC converters, and motor controllers. The device supports flexible configuration, which makes it easy to implement multiple output applications.

The internal architecture of the chip consists of two high-voltage power stages with current sensing capabilities, a pulse-by-pulse current limit comparator, and a switching controller. The switching controller is responsible for controlling the two power stages, which are operated in a synchronous mode. The controller has two outputs: a control signal for the power stage connected to the slave output, and a voltage signal for the power stage connected to the master output. The controller also integrates an on-time generator, a frequency synthesizer, a switch current comparator, and a soft-start feature.

The voltage signal is first adjusted according to the required output voltage and sent to the power stage connected to the master output. The master control signal then sets the switching frequency and the control of the on-time generator. The resulting on-time is used to control the on/off state of the power stage connected to the master output. The switch current comparator also checks the current of the power stage and compares it with the set limit, while the voltage signal is sent to the power stage connected to the slave output. The master control signal then adjusts the on-time of the slave power stage accordingly. This process of voltage and current regulation, where both channels are adjusted and synchronized continuously, results in a highly efficient and accurate regulation of the output voltage.

Conclusion

The MAX17501BATB+ is a highly efficient and accurate dual, synchronous step-down DC-DC voltage regulator that can be used in a variety of applications requiring high current and high efficiency. It features integrated high voltage power stages with current sensing, adjustable voltage and current settings, adjustable switching frequency, input voltage sensing, and output voltage tracking. Its innovative architecture provides a perfectly optimized solution for applications that require high performance and reliability.

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