LM2611BMF

Voltage Regulators - DC DC Switching Regulators Overview

The LM2611BMF is a Cuk converter switching regulator manufactured by Texas Instruments, designed for high-efficiency power conversion in compact spaces. It operates with an input voltage range of 2.7 V to 14 V and provides an adjustable negative output voltage ranging from -36 V to -1.23 V. The device supports a continuous output current of 1.2 A and integrates a fixed internal switching frequency of 1.4 MHz. It functions as both an inverting and step-down regulator within a SOT-23-5 surface-mount package. The component ensures reliable performance across an operating temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Implements Cuk topology to provide simultaneous buck and boost capabilities with low input and output ripple currents.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment requiring negative voltage rails
• Industrial control systems needing isolated or inverted power supplies
• Telecommunications infrastructure utilizing compact DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix configuration against the manufacturer's official datasheet to ensure compatibility with required thermal and electrical specifications. Confirm RoHS compliance status and lead times through authorized distribution channels prior to integration into production schedules.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits that require a negative output voltage derived from a positive input source within a limited footprint. The integrated 1.4 MHz frequency allows for smaller external passive components compared to lower-frequency alternatives, making it suitable for space-constrained portable applications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2611 series of single-output switching regulators. It is distinct from other Texas Instruments PMICs by its specific Cuk converter architecture, which differentiates it from standard Buck, Boost, or Inverting topologies found in similar product lines.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers include LM2611BMFX/NOPB and LM2611AMFX/NOPB. Verify pinout and thermal characteristics before substitution.