LM25576MH/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM25576MH/NOPB is a Texas Instruments Simple Switcher power module featuring an integrated 3A switch. It operates as a step-down DC/DC switching regulator with an input voltage range of 6V to 42V and adjustable output from 1.225V to 40V. The device utilizes current-mode control for rapid transient response and includes a fixed 50kHz to 1MHz adjustable switching frequency. Key electrical parameters include a maximum output current of 3A, shutdown current of 1mA, and operation within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 3A power switch to minimize external component count
• Supports frequency synchronization for noise reduction in multi-unit systems
• Includes comprehensive protection against overcurrent and thermal overload

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power architectures
• Board-level DC/DC conversion
• High-efficiency point-of-load regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MH' confirms the HTSSOP-20 package type during ordering. Confirm that the 'NOPB' designation indicates lead-free and RoHS compliance status. Ensure the selected distributor provides genuine Texas Instruments components to avoid counterfeit risks associated with high-demand PMICs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust 3A buck converter is required with wide input voltage tolerance. The adjustable frequency feature allows optimization for size or efficiency constraints. Consider the HTSSOP-20 package for surface-mount applications requiring adequate thermal dissipation without excessive board space usage.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM25576 family of Simple Switcher regulators. It shares functional similarities with the LM2576 series but offers higher input voltage capability and adjustable frequency. The MH variant specifically denotes the 20-pin Thin Heat-Sink Small Outline Package (HTSSOP) configuration for compact PCB integration.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM25576MHX/NOPB serves as the tape-and-reel alternative to the tube-packaged LM25576MH/NOPB. Both variants share identical electrical specifications and pinouts.