LM2681M6X

Voltage Regulators - DC DC Switching Regulators Overview

The LM2681M6X is a fixed-ratio charge pump DC-DC switch regulator manufactured by Texas Instruments. It operates with an input voltage range of 2.5V to 5.5V and provides a single positive output configured at either Vin/2 or 2Vin. The device delivers a maximum output current of 20mA and functions at a switching frequency of 80kHz. It is housed in a compact SOT-23-6 surface-mount package and supports an operating junction temperature range from -40°C to 85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed-ratio charge pump topology for efficient voltage conversion
• Dual selectable output configurations: half-input (Vin/2) or double-input (2Vin)
• Compact SOT-23-6 surface-mount packaging for space-constrained designs

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices requiring voltage scaling
• Low-power sensor interface circuits
• General-purpose DC-DC level shifting in embedded systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'M6X/NOPB' against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Ensure the selected variant matches the required output ratio configuration, as internal connections may differ between Vin/2 and 2Vin versions. Cross-reference the thermal characteristics with your system's ambient conditions to ensure operation within the specified -40°C to 85°C junction temperature range.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a simple, low-current voltage transformation is needed without the complexity of adjustable regulators. It is suitable for applications where the input voltage is stable and the load current does not exceed 20mA. Consider the fixed nature of the output ratios; if variable output is required, a different regulator topology should be evaluated. The SOT-23-6 package is ideal for high-density PCB layouts.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2681 family of charge pump regulators from Texas Instruments. These devices are designed for low-cost, low-noise power solutions in portable electronics. The family typically includes variants with different output ratios and packaging options, all sharing the same core charge pump architecture and control logic for consistent performance across the series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other Texas Instruments charge pumps such as the LM2680 or LM2682, provided the output ratio and current capabilities match the design requirements. Verify that alternative components offer compatible input voltage ranges and switching frequencies to maintain circuit stability.