CHL8104-10CRT

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CHL8104-10CRT is a DC-DC switching controller in the PMIC (Power Management IC) voltage regulator family. It is specifically designed for step-up converters, providing a solution for low power applications such as portable devices, digital cameras and IoT devices. The DC-DC switch controller uses digital control to regulate the output voltage digitally with high efficiency, providing superior performance in seamless voltage conversion.

Features

• Integrated circuit for low-power or USB applications
• High the power efficiency of up to 96%
• Voltage output control from 0.8 V to 5 V
• Programmable frequency from 200 KHz to 2 MHz
• Voltage feedback accuracy of ±2%
• Small design size of 2 mm x 2 mm

Applications

• Portable devices
• Cell phone chargers
• Digital cameras
• Flat panel displays
• IoT (Internet of Things) devices

Working Principle

The CHL8104-10CRT uses digital control to regulate the output voltage digitally. It has two control loops, the voltage loop and the frequency loop. The voltage loop regulates the output voltage to the required value. The frequency loop has two control methods, one which limits peak current and another where the frequency is manually set. The voltage loop and frequency loop regulate the current flowing through the inductor, which is proportional to the amount of power delivered. The current is then converted to a stable output voltage using a feedback loop. The output voltage can be modified using an external resistor divider.

The CHL8104-10CRT is designed to provide high efficiency while still offering a wide range of output voltages and frequencies. It also reduces the power loss due to its low quiescent current, which is suitable for low power applications. The device can operate at a wide range of frequencies ranging from 200 Khz to 2 MHz, and the output voltage can be adjusted between 0.8 V and 5V.

Conclusion

The CHL8104-10CRT is an ideal solution for low power applications such as portable devices, digital cameras and IoT devices. It provides efficient and steady voltage conversion in a small size and low quiescent current. The wide range of output voltage and frequency makes it suitable for a variety of applications. With its high efficiency and versatility, the CHL8104-10CRT is an ideal choice for power management systems.

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