BD9E303EFJ-LBE2

The Rohm Semiconductor BD9E303EFJ-LBE2 is a highly integrated DC-DC buck converter designed for a variety of applications, including consumer electronics, industrial equipment, and automotive systems. This device is known for its efficiency, compact size, and versatility, making it suitable for powering various electronic devices.

### Key Features

1. High Efficiency: The BD9E303EFJ-LBE2 boasts a high efficiency of up to 95%, which helps in reducing power loss and heat generation. This is particularly beneficial in battery-powered applications where energy conservation is critical.

2. Wide Input Voltage Range: The device supports a wide input voltage range from 4.5V to 36V, allowing it to be used in various applications with different power supply requirements.

3. Output Voltage Range: The output voltage can be adjusted from 0.8V to 15V, providing flexibility for different load requirements. This makes it suitable for powering microcontrollers, sensors, and other peripheral devices.

4. Output Current: The BD9E303EFJ-LBE2 can deliver a maximum output current of 3A, making it capable of handling moderate to high power loads.

5. Compact Package: The device comes in a compact LGA (Land Grid Array) package, which helps save board space and simplifies the design of compact electronic devices.

6. Built-in Protection Features: It includes several protection features such as overcurrent protection (OCP), overvoltage protection (OVP), and thermal shutdown (TSD). These features enhance the reliability and safety of the device in various operating conditions.

7. Soft Start Function: The soft start function helps to limit inrush current during startup, preventing potential damage to the load and improving system stability.

8. Frequency Setting: The switching frequency can be set externally, allowing designers to optimize the trade-off between efficiency and component size based on their specific application needs.

### Specifications

- Input Voltage Range: 4.5V to 36V
- Output Voltage Range: 0.8V to 15V (adjustable)
- Maximum Output Current: 3A
- Efficiency: Up to 95%
- Switching Frequency: Adjustable (typically in the range of 100kHz to 1MHz)
- Package Type: LGA (Land Grid Array)
- Operating Temperature Range: -40°C to +125°C
- Protection Features: OCP, OVP, TSD, and soft start

### Applications

The BD9E303EFJ-LBE2 is suitable for a wide range of applications, including:

- Consumer Electronics: Powering devices such as smartphones, tablets, and portable gaming consoles.
- Industrial Equipment: Used in automation systems, sensors, and control units.
- Automotive Applications: Ideal for powering infotainment systems, navigation devices, and other electronic components in vehicles.
- Telecommunications: Suitable for powering communication devices and networking equipment.

### Conclusion

The Rohm Semiconductor BD9E303EFJ-LBE2 is a versatile and efficient buck converter that meets the demands of modern electronic applications. Its wide input and output voltage ranges, high efficiency, and built-in protection features make it an excellent choice for designers looking to create reliable and compact power solutions. Whether in consumer electronics, industrial applications, or automotive systems, the BD9E303EFJ-LBE2 provides the performance and flexibility needed to power a variety of devices effectively.