MAX16935CAUESB/V+

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PMIC - Voltage Regulators - DC DC Switching Regulators

The MAX16935CAUESB/V+ is a high-efficiency, single-channel, fixed-frequency, synchronous step-down converter from Maxim Integrated. This device has multiple application fields such as powering LEDs and various other end equipment from a 12V or 24V automotive battery. With its Synchronous MOSFET technology, it enables up to 94% efficiency and very low output voltage ripple. It also has an integrated internal 10mΩ N-channel MOSFET for low quiescent current and high efficiency.

Application Field and Working Principle

The MAX16935CAUESB/V+ is mainly targeted for automotive and industrial applications which requires reliable and high power efficiency over wide input voltage range and operates over a wide range of temperatures. This device is suitable for powering modern-day LED headlamp, bidirectional motor, vehicle audio system and other automotive and industrial applications.

This stepped-down switching regulator operates using the principle of buck (step-down) converter, whereby a fixed-frequency pulse width modulation (PWM) signal is used to control the output voltage. The PWM signal switches the power MOSFET on and off at a certain frequency, and in turn, the current is steered through the inductor, thus it allows controlled energy transfer from the input to the output. Additionally, the output voltage is regulated by adjusting the duty cycle of the PWM signal.

Features

The MAX16935CAUESB/V+ has several features which make it highly desirable for automotive and industrial applications. Among them are:

• Integrated 10mΩ N-channel power MOSFET with low RDS (ON) for high efficiency
• Wide input voltage range of 4.5V to 38V
• Wide operating temperature range of -40°C to +125°C
• Accurate output voltage regulation capability down to 1.5V
• Programmable over-current protection
• Soft-start current ramping feature
• Shutdown and wake-up functions available

Conclusion

The MAX16935CAUESB/V+ is a power-saving, space-saving and high efficiency multi-application DC/DC buck converter from Maxim Integrated with impressive features. Its high efficiency and versatility make it an ideal choice for the power supplies of modern-day LED headlamps, bidirectional motors and various other automotive and industrial applications.

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