FAN5037MX

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The FAN5037MX is a DC-DC PWM switching controller integrated with dual high-side MOSFET drivers. The device is designed to provide cost-effective, high frequency, and high-efficiency control of DC-DC Buck converters with minimal external components. It uses both proprietary features and industry-standard techniques to achieve significantly lower supply current, noise, and system output ripple than is achievable with conventional PWM controller designs.

The FAN5037MX offers an unusually high level of integrated features and performance benefits, enabling designers to implement complex DC-DC conversion with fewer components, shorter design cycles and lower costs than ever before. The device offers programmable peak current control, input voltage surge protection, output voltage range adjustment, and all the key fault conditions required for reliable performance.

The FAN5037MX is particularly well suited for automotive power train and electric vehicle applications, as well as other applications requiring superior accuracy and performance. The device\'s wide operating temperature range, from -40°C to +105°C, makes it ideal for use in automotive and other extreme ambient temperature applications.

Application Field:

• Automotive powertrain application
• Electric vehicles
• Energy management
• Telecommunications
• Industrial
• Data processing
• Consumer

Working Principle:
The FAN5037MX is a pulse-width modulation (PWM) controller designed specifically for the DC-DC buck converter. The device operates as a voltage-mode control chip, which means it can rapidly switch both the high-side and low-side transistors of the converter synchronously, at high frequency for a wide range of output voltages. The synchronous rectification of the high-side and low-side switches improves the efficiency of the converter, as well as reducing the almost all losses compared to single-switch power supplies.

The FAN5037MX also includes a variety of advanced integrated features such as adjustable current limit, power good indicator, auto-restart, active ac current balance, and Skip Clock functionality, for improved robustness and efficiency at all output voltage levels. Additionally, the FAN5037MX controller is compatible with a wide range of external components and supports a variety of start-up modes, making it easier to design in demanding power supply applications and ensuring more reliable operation.

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