Fairchild Semiconductor FAN53555UC04X

The FAN53555UC04X is a high-performance DC-DC step-down (buck) regulator designed for powering low-voltage digital processors and components. It operates with a wide input voltage range and is optimized for high efficiency, making it suitable for battery-powered applications. Functions: - Step-Down Voltage Regulation: Converts a higher DC input voltage to a lower DC output voltage. - High Efficiency: The device operates with high efficiency (up to 95% or more) across a wide load range. - Adjustable Output Voltage: The output voltage can be adjusted to meet specific application requirements. - Power Good Indication: Provides a signal to indicate whether the output voltage is within an acceptable range. - Over-Current and Thermal Protection: Includes built-in protection features to safeguard against overcurrent and overheating. Applications: - Powering processors and FPGAs in consumer electronics, telecommunications, and computing devices. - Battery-operated devices requiring efficient power management. - Power supply for LED drivers and automotive systems. - Entry in smart appliances and IoT devices where compact power supplies are essential. Alternative Parts: - TPS563201: A similar buck converter with different efficiency characteristics and features. - LM3671: Another DC-DC step-down regulator with a compact package and various output voltage options. - MAX8653: A different manufacturer’s step-down converter suitable for similar applications. - ISL9217: A buck regulator with integrated power management features. Embedded Modules: Common embedded modules that may integrate the FAN53555UC04X include: - Power management modules in robotics and drones. - Custom PCB designs for consumer gadgets. - Development boards for testing and prototyping electronic systems. Related Q&A: Q1: What is the input voltage range of the FAN53555UC04X? A1: The FAN53555UC04X operates with an input voltage range of typically 3.0V to 5.5V, making it versatile for various applications. --- Q2: How efficient is the FAN53555UC04X at full load? A2: The FAN53555UC04X can achieve efficiencies greater than 90%, often reaching up to 95% depending on the load conditions, which helps reduce heat generation and improve battery life in portable applications. --- Q3: Can the output voltage of the FAN53555UC04X be adjusted? A3: Yes, the output voltage of the FAN53555UC04X is adjustable, allowing users to set it to the required voltage level for their specific applications. --- Q4: What safety features does the FAN53555UC04X include? A4: The FAN53555UC04X includes safety features such as overcurrent protection, thermal shutdown, and a power-good signal that alerts the system of voltage status. --- Q5: In what types of applications would the FAN53555UC04X be an ideal choice? A5: The FAN53555UC04X is ideal for applications in battery-powered devices, consumer electronics, compact IoT devices, and systems that require efficient voltage regulation for sensitive electronic components.