LM26400YSD

Voltage Regulators - DC DC Switching Regulators Overview

The LM26400YSD is a dual-channel synchronous step-down DC-DC converter manufactured by National Semiconductor. It integrates two independent buck regulators capable of delivering up to 2A per channel, providing a total output current capacity of 4A. The device operates with an input voltage range supporting standard bus voltages and features adjustable output voltages for flexible system design. Packaged in a compact 16-WSON footprint, it offers high efficiency and thermal performance suitable for space-constrained applications requiring multiple regulated power rails.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual independent synchronous buck channels for simultaneous multi-rail power generation
• Integrated power switches eliminate external component count and reduce solution size
• Adjustable output voltage configuration allows customization for various load requirements

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or separate logic and analog supplies
• Telecommunications equipment needing stable voltage rails for signal processing
• Embedded computing platforms utilizing multiple voltage domains for core and peripheral circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix designation against the manufacturer's official documentation to confirm pinout compatibility and electrical specifications. Ensure that the package type matches the intended PCB layout constraints. Cross-reference the part number with the latest datasheet revisions to identify any functional updates or recommended alternatives within the product family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single IC solution is required to generate two distinct regulated outputs from a common input source. Evaluate the thermal dissipation capabilities based on the expected load current and ambient temperature conditions. Confirm that the input voltage range aligns with the system's power supply characteristics and that the adjustable output range covers the target load requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM26400 series of dual-channel switching regulators designed for high-density power conversion. It represents a consolidation of discrete regulator solutions into a single integrated circuit, reducing board space and simplifying design complexity. The series is characterized by its synchronous rectification architecture, which enhances efficiency compared to traditional diode-based designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult the manufacturer's obsolescence notices and replacement guide for direct equivalents. Verify pin-to-pin compatibility and electrical parameter alignment before substituting with other dual-channel buck converters from different manufacturers.