LM2611AMF/S7002213

Voltage Regulators - DC DC Switching Regulators Overview

The LM2611AMF/S7002213 is a Cuk converter switching regulator manufactured by Texas Instruments. It operates from an input voltage range of 2.7V to 4V and delivers a regulated negative output. The device features a fixed switching frequency of 1.4MHz and supports an output current of 1.2A. It provides adjustable output voltage capability with a maximum negative output of -32V. The component is housed in a SC-74A (SOT-753) package, measuring 2.90 x 1.60mm with a height of 1.18mm. It functions as a step-up/step-down regulator without synchronous rectification.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Implements Cuk topology for efficient step-up and step-down conversion capabilities
• Integrates low RDS(ON) DMOS FETs for improved power efficiency
• Provides low output ripple performance suitable for sensitive applications

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices requiring negative voltage rails
• Systems needing isolated or non-isolated negative supply generation
• Applications with varying input voltages requiring stable negative regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix S7002213 against official Texas Instruments documentation to confirm exact packaging and revision status. Ensure compatibility with existing PCB footprints for the SC-74A package. Confirm that the 1.4MHz switching frequency aligns with electromagnetic interference requirements. Validate thermal management strategies for the specified operating temperature range.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a negative output voltage is required from a single positive supply source. The Cuk topology allows for continuous input and output currents, reducing filtering requirements. Consider the 1.4MHz frequency for balancing component size and efficiency. Ensure the input voltage stays within the 2.7V to 4V operational window for optimal performance.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2611 family of DC-DC switching regulators. It is designed for space-constrained applications due to its small SOT-753 package. The device integrates the control logic and power switches into a single IC, simplifying design implementation compared to discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2611AMF/NOPB is listed as a parameter-equivalent alternative. Verify pinout and electrical specifications match before substitution. Check for any changes in packaging or RoHS compliance status between the original and replacement parts.