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The LTM4620AIY is a high-efficiency, dual, step-down DC-DC power module capable of delivering up to 2A of output current per channel. It features a synchronous buck converter topology, which allows for higher efficiency and less heat generation compared to non-synchronous designs. This module integrates all necessary components, including power inductors, shielding, and passive components, into a compact package, making it suitable for space-constrained applications. Functions 1. DC-DC Conversion: Converts a wide input voltage range to a stable output voltage. 2. Dual Outputs: Provides two independent, regulated output voltages. 3. High Efficiency: Utilizes synchronous rectification to achieve efficiencies of over 90%. 4. Thermal Protection: Features integrated thermal protection to prevent overheating. 5. Adjustable Output Voltages: Output voltages can be set between specified levels using external resistors. Applications - Telecommunications: Powering devices in network equipment and telecommunications infrastructure. - Industrial Equipment: Supplying power to industrial control systems and automation devices. - Consumer Electronics: Suitable for powering various consumer devices requiring compact power supplies. - Computer Systems: Used in computing applications where multiple power rails are required. Alternative Parts 1. LTM4621: A similar dual-output module but with a higher output current capability. 2. LT3900: A single output step-down converter that may serve applications needing less power. 3. LTM4623: Another dual output regulator but with different specifications and performance characteristics. 4. LTM4624: Includes onboard thermal management solutions for more demanding thermal environments. Embedded Modules The LTM4620AIY part can be integrated into various custom PCB designs, especially where space is a constraint, thanks to its small footprint. It may also be used in evaluation systems provided by Analog Devices for prototyping and performance testing. Related Q&A Q1: What is the typical input voltage range for the LTM4620AIY? A1: The LTM4620AIY typically operates with an input voltage range from 4.5V to 15V. Q2: How do you set the output voltage on the LTM4620AIY? A2: The output voltage can be set using external resistors connected to the feedback pins, configured to the desired output voltage as specified in the datasheet. Q3: What safety features does the LTM4620AIY include? A3: The module includes features such as thermal shutdown, current limiting, and short-circuit protection to ensure safe operation under fault conditions. Q4: Can I use the LTM4620AIY in parallel for higher output current? A4: Yes, it is possible to use multiple LTM4620AIYs in parallel configurations with proper current sharing techniques to achieve higher output currents. Q5: What is the efficiency of the LTM4620AIY? A5: The LTM4620AIY can achieve efficiencies greater than 90%, depending on the load current and input voltage conditions.