LM2717MTX

Voltage Regulators - DC DC Switching Regulators Overview

The LM2717MTX is a dual step-down DC/DC converter manufactured by Texas Instruments. It integrates two independent buck converters in a single package, designed for applications requiring multiple voltage rails from a single input source. The device operates with an input voltage range of 4V to 20V and provides fixed output voltages, typically configured for 3.3V outputs. Each channel supports high output currents, specified as 2.2A and 3.2A respectively, allowing for efficient power distribution in portable electronics. The IC features a switching frequency range between 300kHz and 600kHz, enabling the use of small external passive components. It is housed in a 24-TSSOP package suitable for surface-mount assembly.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual independent buck converter topology for simultaneous multi-rail generation
• Integrated synchronous rectification for improved efficiency
• Fixed output voltage configuration for simplified design
• Wide operating temperature range supporting industrial environments

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring dual voltage supplies
• Embedded systems with mixed-signal processing needs
• Industrial control modules utilizing multiple logic levels
• Battery-powered devices needing efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distributors due to potential obsolescence or replacement variants. Confirm package integrity and pin alignment against the 24-TSSOP specification before integration. Check for lead-free compliance markings if RoHS standards are required for the target application. Ensure storage conditions maintain moisture sensitivity level ratings prior to soldering.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Evaluate thermal performance requirements given the dual-channel current capabilities within the compact TSSOP footprint. Compare input voltage stability against the 4V minimum threshold to ensure reliable startup. Assess load transient response needs against the internal controller bandwidth. Consider PCB layout constraints for high-frequency switching nodes to minimize electromagnetic interference.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2717 family of dual step-down converters originally developed by National Semiconductor and later acquired by Texas Instruments. The series is designed to replace discrete regulator solutions, offering space savings and reduced bill of materials. It serves as a foundational power management solution for designs transitioning from single-rail to multi-rail architectures.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2717MT/NOPB is listed as a direct substitute. Verify pin compatibility and electrical parameter equivalence before substitution. Confirm that the replacement variant maintains the same package dimensions and thermal characteristics.