LMR62421XMFX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LMR62421XMFX/NOPB is a SIMPLE SWITCHER DC/DC converter from Texas Instruments, featuring an adjustable output voltage range of 1.25 V to 24 V and a switch current capability of 2.1 A. It operates with an input voltage range of 2.7 V to 5.5 V and supports Boost and SEPIC topologies. The device integrates a fixed switching frequency of 1.6 MHz and includes shutdown functionality. It is housed in a compact SOT-23-5 package (SC-74A/SOT-753) and functions within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports both Boost and SEPIC converter topologies for flexible power conversion needs.
• Integrates a high-frequency switching controller to enable the use of small external passive components.
• Includes built-in protection features such as thermal shutdown and cycle-by-cycle current limiting.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment requiring efficient step-up conversion
• Industrial control systems utilizing single-cell lithium-ion or alkaline batteries
• Automotive electronics operating within low-voltage input ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the ordering suffix 'X' corresponds to the tape-and-reel packaging format specified by Texas Instruments. Confirm the exact package designation matches the required footprint, as variations exist between SOT-23-5 and WSON-6 variants within the same family. Ensure the component meets RoHS compliance standards required for your assembly process. Cross-reference the manufacturer part number against official distributor catalogs to confirm availability and authenticity before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits that require a wide input voltage range up to 5.5 V and need support for SEPIC applications. The 1.6 MHz switching frequency allows for smaller inductor and capacitor sizes compared to lower-frequency alternatives. Consider the 2.1 A switch current limit for load requirements and ensure adequate thermal management for the SOT-23-5 package under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR62421 series of SIMPLE SWITCHER converters, designed for space-constrained applications. The series offers integrated power switches and control logic to simplify design implementation. The XMFE/NOPB variant specifically denotes the SOT-23-5 package option, providing a compact solution for portable and embedded systems requiring efficient DC/DC conversion.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include LMR62421XMF/NOPB and LMR62421XMFE/NOPB, which share identical electrical specifications but may differ in reel quantity or specific package marking details. Verify pinout compatibility and thermal characteristics when transitioning between these variants to ensure seamless integration into existing designs.