NCP4350DR2G

Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: SOIC-8

Essence: The NCP4350DR2G is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to 3.6V
• Maximum Output Current: 500mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The NCP4350DR2G has the following pin configuration:

```

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| | --| Vout Vin|-- --| GND EN |-- --| FB NC |-- |___________| ```

• Vout: Output Voltage
• Vin: Input Voltage
• GND: Ground
• EN: Enable Pin
• FB: Feedback Pin
• NC: No Connection

Functional Features

1. High Efficiency: The NCP4350DR2G offers high efficiency, minimizing power loss and maximizing battery life in portable devices.

2. Low Dropout Voltage: With a low dropout voltage of only 200mV at 100mA, the IC can maintain a stable output voltage even when the input voltage is close to the desired output voltage.

3. Adjustable Output Voltage: The output voltage can be easily adjusted within the range of 0.8V to 3.6V, making it suitable for a wide range of applications.

4. Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the connected circuitry from excessive current flow and potential damage.

5. Thermal Shutdown Protection: In case of excessive temperature rise, the NCP4350DR2G features thermal shutdown protection, preventing overheating and ensuring safe operation.

Advantages and Disadvantages

Advantages: - High efficiency leads to longer battery life. - Adjustable output voltage allows flexibility in various applications. - Overcurrent and thermal shutdown protection enhance reliability and safety.

Disadvantages: - Limited maximum output current of 500mA may not be sufficient for high-power applications.

Working Principles

The NCP4350DR2G operates as a linear voltage regulator. It regulates the output voltage by comparing the feedback voltage (FB) with a reference voltage. By adjusting the resistance connected to the FB pin, the output voltage can be set within the specified range. The enable pin (EN) controls the on/off state of the regulator.

Detailed Application Field Plans

The NCP4350DR2G is commonly used in various electronic devices requiring a stable and regulated power supply. Some typical application fields include:

1. Portable Devices: Smartphones, tablets, portable media players, and other battery-powered devices benefit from the NCP4350DR2G's high efficiency and low dropout voltage, extending battery life.

2. Wireless Communication Systems: The IC is suitable for powering wireless communication modules, such as Wi-Fi and Bluetooth modules, ensuring a stable power supply for reliable operation.

3. Industrial Control Systems: The NCP4350DR2G finds applications in industrial control systems, providing regulated power to microcontrollers, sensors, and other components.

4. Automotive Electronics: With its wide input voltage range and robust protection features, the IC can be used in automotive electronics, including infotainment systems, navigation devices, and lighting control modules.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable linear voltage regulator with similar characteristics and pin configuration.
2. LT1084: A high-current linear voltage regulator capable of delivering up to 5A output current.
3. TPS7A4700: An ultra-low-noise linear voltage regulator suitable for sensitive audio and measurement applications.

These alternative models offer different specifications and features, providing options based on specific requirements.

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