NCP81236MNTXG

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The NCP81236MNTXG is a DC/DC step-down switching system controller specifically designed for cost-sensitive application space. Utilizing an advanced Pulse-Width Modulation (PWM) controller, this integrated device provides an optimized high performance power management solution. Designed for automotive application, it offers advanced system functions such as On/Off control, overvoltage protection, overtemperature protection and load-sharing capability.

The NCP81236MNTXG is mainly used in portable cellular telephone system, automotive applications, general power supply systems and other; applications. It is designed to operate with a wide input voltage range and capable of supporting multi-output converters, ensure operating efficiency and reliability. Its advanced circuit architecture helps minimize system power consumption and prolong battery life. In addition, this device uses a variety of power management techniques such as Thermal Shutdown and Overvoltage Protection to prevent system damage. The NCP81236MNTXG is an ideal device for DC/DC step-down regulator applications.

Features

• Wide Operating Voltage (VIN): 4.0V to 35V
• Wide Operating Frequency (fOSC): 500kHz to 1.25MHz
• Integrated Boost PWM Controller
• On/Off Controller with Auto-Restart Function
• Overvoltage and Overtemperature Protection
• Flexible Multiple Outputs
• Low Parts Count for Cost Efficiency

Working Principle

The NCP81236MNTXG is a DC/DC step-down switching system controller specifically designed for cost-sensitive application space. This integrated device provides an optimized high performance power management solution, offering advanced system functions such as On/Off control, overvoltage protection, overtemperature protection and load-sharing capability. At its core, this device features an advanced circuit architecture which helps minimize system power consumption and prolong battery life.

The device works by controlling the switching action of the main switch device within the DC/DC converter. At one end of the system, the input voltage is stepped down and regulated to the desired output voltage levels by varying the duty cycle of this main switch. To ensure optimal performance, the integrated PWM controller monitors the output voltage levels and adjusts the duty cycle as necessary. The PWM controller also offers various protection functions such as overvoltage, overtemperature and safety shutdown.

The NCP81236MNTXG offers a flexible multiple output solution. With an integrated boost PWM controller, it is capable of generating multiple output rails independently. This eliminates the need for external boost devices, resulting in a compact, cost-sensitive solution. Moreover, the integrated resistive and current-mode load-sharing function ensures a smooth, accurate transition between multiple outputs.

Conclusion

The NCP81236MNTXG is a cost-sensitive DC/DC step-down switching system controller; it offers advanced system functions such as On/Off control, overvoltage protection, overtemperature protection and load-sharing capability. This device simplifies the design of DC/DC step-down regulator applications, provides a flexiple multiple output solution, and meets the ever-growing need for cost-effective solutions. With its compact size and low power consumption, the NCP81236MNTXG is ideal for automotive applications and general power supply systems.

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