XR77103ELB-A0R5 Integrated Circuits (ICs)

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The XR77103ELB-A0R5 is a DC-DC switching regulator from Infineon Technologies AG. It is designed for a wide range of applications, ranging from portable battery-powered devices to large power system supplies. The XR77103ELB-A0R5 features a wide voltage and current range, high efficiency, low quiescent current and low electromagnetic interference (EMI). It is suitable for a variety of applications, including mobile phones, DVD players, PDAs, media players, power adapters, and battery-powered computers.

The XR77103ELB-A0R5 is a synchronous buck converter, meaning it can operate in both step-up and step-down mode depending on the voltage and current requirements of the application. It operates in Pulse Width Modulation (PWM) mode to maintain a steady output voltage while keeping the power supply’s ripple and noise low. It is capable of providing a power efficiency as high as 94%, helping to conserve battery life in portable applications. The XR77103ELB-A0R5 is available in both through-hole and surface-mount packages, allowing for flexible implementation in a variety of designs.

The XR77103ELB-A0R5 features a wide input voltage range of 4.5V to 24V, offering a flexible solution for a wide range of applications. It is capable of providing an output current of up to 5A, making it suitable for powering high current loads such as LCD displays. The adjustable output voltage range is 0.8V to 21V, allowing the XR77103ELB-A0R5 to be used in many applications requiring different output voltages. Additionally, the XR77103ELB-A0R5 features a low quiescent current of just 23uA, helping extend battery life in portable applications.

The XR77103ELB-A0R5 features a wide range of protection features to ensure safe operation in a wide range of applications. It has under-voltage lockout (UVLO) to prevent operation outside the specified input voltage range. It has over-current protection and thermal shutdown to protect the device from over-temperature. It also features an adjustable soft-start times to reduce current surges and eliminate in-rush current.

The XR77103ELB-A0R5 also features a negative voltage feedback architecture, reducing power dissipation, improving efficiency, and allowing for higher output power. The XR77103ELB-A0R5 is also RoHS compliant and has a Lead Free (Pb-Free) finish, making it suitable for use in green designs.

Conclusion

The XR77103ELB-A0R5 is a DC-DC switching regulator from Infineon Technologies AG, capable of providing a wide range of input and output voltages. It features high efficiency, low quiescent current, and protection features to ensure safe operation in a wide range of applications. It is suitable for powering LCD displays, mobile phones, DVD players, PDAs, media players, power adapters, and battery-powered computers. Its availability in through-hole and surface-mount packages makes it a very flexible solution for a wide range of applications.

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