LTC3417AIDHC-1#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3417AIDHC-1#PBF is a dual synchronous step-down DC/DC converter featuring an integrated power path manager for battery charging applications. It operates from input voltages between 2.7V and 5.5V, providing two independent output channels with adjustable voltage settings. The device incorporates a PowerPath controller that optimizes power distribution between the system load and the battery, ensuring continuous operation even when the input source is limited or disconnected.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated power path management for seamless transition between input sources and batteries
• Dual synchronous buck converters with independent current limit and soft-start controls
• Fixed switching frequency operation to minimize external component count and noise

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring simultaneous system power and battery charging
• USB-powered devices with integrated battery backup capabilities
• Mobile communication handsets and tablets
• Digital cameras and MP3 players with rechargeable lithium-ion batteries

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix and tape/reel specifications against the manufacturer's official ordering guide before purchase. Confirm that the package type matches your PCB footprint requirements. Ensure compatibility with your system's thermal design constraints, as performance depends on adequate heat dissipation. Cross-reference the datasheet revision date to ensure all electrical characteristics align with your design specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems that require both regulated system power and efficient battery charging from a single low-voltage source. It is suitable for applications where input current is limited, such as USB ports, necessitating intelligent power sharing. Consider the thermal performance in your enclosure design, as the device dissipates power based on the voltage differential and load current. Verify that the required output voltages fall within the adjustable range specified in the datasheet.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to Analog Devices' LTC3417 family of dual synchronous step-down converters with power path management. It is designed for portable applications where space and efficiency are critical. The device integrates high-side N-channel MOSFETs for both buck converters, reducing the need for external Schottky diodes and improving overall efficiency compared to non-synchronous solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult the manufacturer's official substitution guide for verified alternatives. Generic replacements may lack the integrated power path functionality or specific electrical characteristics required for seamless integration. Ensure any substitute part maintains compatibility with the existing control loop and thermal management strategy.

Voltage Regulators - DC DC Switching Regulators FAQ

How does the power path manager handle situations where the input source is removed?

The power path manager seamlessly transitions to battery power to supply the system load while continuing to charge the battery if possible, ensuring uninterrupted operation.

What is the typical switching frequency of the LTC3417A?

The device operates at a fixed switching frequency, which is determined by external resistors or internal settings as specified in the datasheet, allowing for optimized filter component selection.