Torex Semiconductor’s XCL206 Series

Torex Semiconductor’s XCL206 series represents a breakthrough in miniaturized power management solutions, offering a compact and efficient synchronous step-down DC-DC converter with integrated inductors. Ideal for applications demanding high efficiency and low output noise in a tiny footprint, the XCL206 sets new standards in power conversion technology.

Ultra-Small Form Factor with High Efficiency

One of the standout features of the XCL206 series is its incredibly small size. The entire solution, including a 1.5 µH inductor, measures just 2.5 mm x 2.0 mm with a profile height of only 1.0 mm. Despite its compact dimensions, this series delivers impressive efficiency, achieving over 85% in typical configurations.

Compact Design and Minimal External Components

The XCL206 requires only two external ceramic capacitors to configure a step-down circuit, making it one of the smallest solutions available on the market. This minimal component count not only saves space but also simplifies the design process, allowing engineers to focus on optimizing performance in a limited PCB area.

Versatile Voltage and Current Specifications

Wide Input and Output Voltage Range

The XCL206 series is designed to operate across a wide input voltage range of 2.0 V to 6.0 V. The output voltage is highly customizable, selectable from 0.8 V to 4.0 V in 50 mV steps, with a precision of ±2%. This flexibility makes it suitable for a broad range of applications requiring different voltage levels.

Robust Output Current and Frequency

Capable of delivering up to 600 mA of output current, the XCL206 is well-suited for powering various high-demand applications. It operates at a high oscillation frequency of 3 MHz, ensuring rapid and efficient power conversion with a maximum duty cycle optimized for low ESR ceramic capacitors.

Advanced Functional Features

Auto CL Discharge and High-Speed Soft-Start

The XCL206 series features an auto CL discharge function, enhancing safety and reliability. The B type version includes a high-speed soft-start function that activates in just 0.5 ms, compared to 2.5 ms for other versions. This quick start-up is crucial for applications where time-to-operation is critical.

Built-In Protection Circuits

All versions of the XCL206 include built-in current limiters, offering both constant current and latching protections, as well as short circuit protection. These features ensure that the device operates safely under various load conditions, protecting both the converter and the application it powers.

Energy Efficiency and Standby Functionality

Low Power Consumption

The XCL206 series is designed for low power consumption, making it ideal for battery-powered applications. In active mode, it typically consumes only 21 µA, and this can be reduced to less than 1.0 µA in standby mode via the CE pin, which enables and disables the device.

Applications and Use Cases

The XCL206 is perfectly suited for a variety of portable and handheld devices due to its compact size and high efficiency. Key applications include:

• Mobile phones and smartphones
• Bluetooth headsets
• WiMAX devices, PDAs, MIDs, UMPCs
• Portable game consoles
• Digital cameras and camcorders
• Electronic dictionaries

Conclusion

Torex Semiconductor’s XCL206 series offers a unique combination of ultra-small size, high efficiency, and versatile functionality. These DC-DC converters are engineered to meet the demands of modern portable electronics, providing reliable power conversion in the smallest possible footprint. Whether for smartphones, gaming devices, or digital cameras, the XCL206 series delivers outstanding performance and efficiency.

FAQ

Q: What makes the XCL206 series stand out from other DC-DC converters? A: The XCL206 series is distinguished by its ultra-small size, high efficiency (85% typical), and minimal external component requirements, making it ideal for space-constrained applications.

Q: What is the input voltage range for the XCL206 series? A: The XCL206 series supports an input voltage range of 2.0 V to 6.0 V.

Q: How customizable are the output voltages? A: The output voltages can be selected from 0.8 V to 4.0 V in 50 mV steps, with a precision of ±2%.

Q: What are the main protection features of the XCL206 series? A: The XCL206 includes built-in current limiters (constant current and latching) and short circuit protection to ensure safe operation.

Q: Can the XCL206 series be used in battery-powered devices? A: Yes, the low power consumption (21 µA typical in operation, <1.0 µA in standby) makes it ideal for battery-powered applications such as mobile phones and Bluetooth headsets.

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