LM2686MTCX/NOPB

Overview

The LM2686MTCX/NOPB is a switched capacitor regulator manufactured by National Semiconductor, now part of Texas Instruments. It operates with a maximum switching frequency of 180 kHz and is housed in a TSSOP-14 package (PDSO14). The device supports an input voltage range from 2.85 V to 6.5 V, with a nominal input voltage of 3.6 V. It functions as a single-function analog integrated circuit within the power management category. The component is rated for commercial use with an operating temperature range spanning from -40 °C to 85 °C. It features a plastic/epoxy body and is lead-free compliant.

Feature Summary

• Switched capacitor topology for voltage regulation
• Integrated high-frequency switching operation
• Compact thin-profile surface mount packaging

Applications

• Portable electronic devices requiring efficient voltage conversion
• Battery-powered systems utilizing switched capacitor regulation
• General-purpose power management circuits in consumer electronics

Procurement Notes

Verify the manufacturer designation, as National Semiconductor assets are managed by Texas Instruments. Confirm the specific suffix NOPB indicates lead-free compliance and RoHS adherence. Ensure the TSSOP-14 package variant matches the design requirements. Cross-reference the datasheet for any updates regarding pinout or electrical characteristics compared to legacy versions.

Selection Notes

Select this component when a compact switched capacitor solution is required for low-to-medium power applications. Consider the 180 kHz switching frequency for EMI management and filter size trade-offs. Evaluate the input voltage window against the system's supply rails. The TSSOP-14 form factor offers a balance between thermal performance and board space constraints for dense layouts.

Part Context

This device belongs to the LM268x family of switched capacitor regulators produced by National Semiconductor. These components are designed to provide efficient voltage conversion without the need for inductors, distinguishing them from traditional switching regulators. The family targets applications where size and simplicity are prioritized over high current capabilities.

Replacement Considerations

Check for direct equivalents within the LM268x series from Texas Instruments. Verify pin compatibility and electrical specifications before substituting with other switched capacitor regulators.