LM5576MH

Voltage Regulators - DC DC Switching Regulators Overview

The LM5576MH is a SIMPLE SWITCHER step-down switching regulator from Texas Instruments. It supports an ultra-wide input voltage range of 6 V to 75 V and delivers up to 3 A of output current. The device features adjustable output voltage capability, starting as low as 1.225 V. It operates with a switch frequency ranging from 50 kHz to 500 kHz. The component utilizes current-mode control and pulse width modulation techniques. It is housed in a 20-pin HTSSOP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Ultra-wide input voltage range supporting operation from 6 V to 75 V
• Adjustable output voltage configuration allowing regulation down to 1.225 V
• Integrated high-side N-channel MOSFET for simplified design
• Current-mode control architecture for fast transient response

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Automotive power distribution systems
• Distributed power architectures
• High-voltage battery-powered equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix designation when ordering, as variants such as LM5576MHX/NOPB indicate tape-and-reel packaging and lead-free status. Confirm RoHS compliance requirements against the exact part number. Ensure the selected variant matches the required thermal performance and package dimensions for the target PCB layout.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator for applications requiring high input voltages up to 75 V. The fixed 500 kHz option reduces external component size compared to lower frequency alternatives. Verify that the thermal pad connection is properly implemented on the PCB to handle the 3 A load current effectively. Consider the operating temperature range limits for harsh environments.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the SIMPLE SWITCHER family of DC/DC converters. It serves as a high-voltage buck converter solution designed to simplify power supply designs. The device integrates the controller and power switch into a single package, reducing the bill of materials and board space required for high-current step-down applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5576MHX/NOPB is a documented equivalent variant offering lead-free construction and tape-and-reel packaging.