LM2687MMX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2687MMX/NOPB is a switched-capacitor voltage doubler and inverting regulator manufactured by Texas Instruments. It operates within an input voltage range of 2 V to 5.5 V, delivering a maximum output current of 10 mA. The device supports multiple topologies including boost, buck, and inverting configurations. It features a fixed switching frequency of 6 kHz and provides a negative output voltage of -11.6 V. The component is housed in an 8-pin VSSOP package and is rated for operation between -40°C and +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated switched-capacitor architecture eliminates the need for external inductors
• Supports flexible voltage conversion modes including doubling and inversion
• Low electromagnetic interference due to low-frequency switching operation

Voltage Regulators - DC DC Switching Regulators Applications

• Portable devices requiring negative supply rails from single batteries
• LCD bias voltage generation
• RS-232 interface power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status against the latest manufacturer datasheet. Confirm the VSSOP-8 package outline matches your PCB footprint requirements. Ensure the 10 mA load capability meets your circuit design specifications before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when inductor-free solutions are required for low-current applications. The 6 kHz switching frequency allows for smaller external capacitors compared to higher-frequency regulators. Verify that the 10 mA output current limit is sufficient for the target application's peak demand.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM268x family of charge pump regulators designed for space-constrained portable electronics. It serves as a compact alternative to inductive DC-DC converters for generating negative voltages or doubled positive voltages from standard battery sources.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for LM2687MMX (non-NOPB version) if lead-free compliance is not required. Verify compatibility with other LM268x variants based on specific voltage and current needs.