IP1203TRPBF

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IP1203TRPBF is a DC/DC switching regulator controller with low voltage output. It has a wide operating temperature range of -20℃ to 85℃. This device is ideal for automotive, industrial and other applications. The device includes a power MOSFET driver and frequency setting circuit, and provides fast and accurate output voltage transient response.

Application Field and Working Principle

The IP1203TRPBF is designed for automotive, industrial, and other applications where accurate output voltage, fast transient response, simple external circuit, and low cost are needed. It is capable of delivering both positive and negative output voltages and can be used for high power, low voltage applications.  It features low voltage operation, high efficiency, fast transient response, and a frequency setting circuit.

The IP1203TRPBF controls an external switch by modulating the pulses width of the output voltage. As the output voltage changes, the pulses width also changes, automatically adjusting the output current to maintain a stable output voltage. The basic topology of the device is a buck type (step-down) switching regulator.

Features of the IP1203TRPBF

The IP1203TRPBF offers several features to make designing with it easier:

• Low voltage operation: The IP1203TRPBF operates down to 2.5V, making it ideal for automotive, industrial, and other low voltage applications.
• High efficiency: The IP1203TRPBF can provide up to 97% efficiency, reducing power losses and improving system reliability.
• Fast transient response: The IP1203TRPBF features fast transient response, allowing for better voltage stability and improved system performance.
• Frequency setting circuit: The IP1203TRPBF features a frequency setting circuit, allowing users to customize and optimize system performance.

Input Capacitor and Output Inductor Selection

The IP1203TRPBF is designed to operate with an input capacitor and output inductor. The selection of components depends on the output voltage, output current, and ripple current. The input capacitor should be selected to provide sufficient filtering and reduce the input voltage ripple. The output inductor should be selected to reduce the output voltage ripple and reduce the power losses during switching. Care should be taken when selecting the input capacitor and output inductor as the wrong selection can lead to instability and power losses.

Output Voltage and Current Limiting

The IP1203TRPBF can provide adjustable output voltage and current limiting through the use of external resistors and capacitors. The output voltage can be controlled by setting the output voltage adjustment pin, and the current limiting can be set by varying the resistor on the current limit pin. The output voltage, current limit, and current limiting hysteresis can also be set by connecting the voltage feedback pin and current limit pin on the motherboard.

Conclusion

The IP1203TRPBF is a DC/DC switching regulator controller with low voltage output, capable of delivering both positive and negative output voltages. It features low voltage operation, high efficiency, fast transient response, and a frequency setting circuit. The device includes a power MOSFET driver and frequency setting circuit, and provides fast and accurate output voltage transient response. It is suitable for automotive, industrial, and other applications where accurate output voltage, fast transient response, simple external circuit, and low cost are needed.

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