The MC34063EBD-TR is a high-efficiency, step-down (buck) switching voltage regulator integrated circuit (IC) manufactured by STMicroelectronics. It is designed to convert a higher input voltage to a lower output voltage, making it suitable for a wide range of applications that require efficient power conversion.
Description:
The MC34063EBD-TR is a monolithic integrated circuit that provides a highly efficient PWM step-down voltage regulator. It features a fixed-frequency, current-mode control scheme with a duty cycle of up to 95%. The device operates with an input voltage range of 4.5V to 40V and can deliver an output current of up to 3A.
Features:
- High efficiency: The MC34063EBD-TR offers high efficiency power conversion, making it suitable for battery-powered applications and energy-sensitive systems.
- Wide input voltage range: It can operate with input voltages from 4.5V to 40V, making it versatile for various power supply requirements.
- Adjustable output voltage: The output voltage can be easily adjusted using external resistors, allowing for customization to specific application needs.
- Low quiescent current: The device has a low quiescent current, which helps to minimize power consumption during operation.
- Fixed-frequency operation: The MC34063EBD-TR operates at a fixed switching frequency of 130kHz, simplifying the design of the external components.
- Over-current protection: It includes built-in over-current protection to prevent damage to the device and the connected components.
- Thermal shutdown: The IC features thermal shutdown protection to prevent overheating and potential damage in case of excessive temperature.
Applications:
- Battery-powered applications: The high efficiency and wide input voltage range make it suitable for use in battery-powered devices, such as portable electronics and wireless communication devices.
- Power supplies: It can be used in various power supply applications, including DC-DC converters and battery chargers.
- LED lighting: The MC34063EBD-TR is suitable for driving LED lighting systems, providing efficient power conversion and adjustable output voltage.
- Telecommunications: It can be used in telecommunications equipment, such as routers, modems, and other devices that require efficient power conversion.
- Industrial control systems: The device can be used in industrial control systems, where efficient power conversion and reliable operation are essential.
In summary, the MC34063EBD-TR is a versatile and efficient step-down switching voltage regulator IC that offers a wide range of features, making it suitable for various applications, including battery-powered devices, power supplies, LED lighting, telecommunications, and industrial control systems.