LM2681M6

Voltage Regulators - DC DC Switching Regulators Overview

The LM2681M6 is a switched capacitor voltage converter manufactured by Texas Instruments, designed to provide flexible voltage conversion capabilities in a compact form factor. This device operates with an input voltage range of 2.5V to 5.5V and delivers a fixed output current of 20mA. It supports multiple conversion ratios, including 2Vin and Vin/2, making it suitable for various power management applications. The component is housed in a SOT-23-6 surface-mount package and functions within a junction temperature range of -40°C to 85°C. With a switching frequency of 80kHz, it offers efficient power regulation without the need for inductors.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Switched capacitor topology eliminates the need for external inductors
• Supports multiple voltage conversion ratios including doubling and halving
• Compact SOT-23-6 surface-mount package design

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices requiring voltage step-up or step-down
• Low-power embedded systems needing isolated or regulated supply rails
• Industrial control circuits with limited space constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (e.g., M6X/NOPB) against your bill of materials, as packaging and environmental compliance may vary. Confirm that the SOT-23-6 package matches your PCB footprint requirements. Ensure the operating temperature range meets your system's thermal specifications. Check for any recent product change notices regarding pinout or electrical characteristics before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when inductor-free voltage conversion is required in space-constrained designs. Consider the 20mA output limit for load requirements. Evaluate the 80kHz switching frequency for noise sensitivity in adjacent circuitry. Compare input voltage ranges to ensure compatibility with the system's power source. Verify package availability and lead times if using specific ordering suffixes.

Voltage Regulators - DC DC Switching Regulators Part Context

The LM2681 belongs to Texas Instruments' family of switched capacitor voltage converters. These devices are part of the broader PMIC portfolio, focusing on simple, cost-effective power solutions. The M6 designation typically refers to the SOT-23-6 package variant. This series is often used alongside other linear regulators and DC-DC converters in complete power management subsystems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers include LM2681M6/NOPB and LM2681M6X/NOPB from Texas Instruments. Cross-manufacturer equivalents such as MAX829 or TC828A exist but require verification of pinouts and electrical parameters.