LM4576DP-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM4576DP-5.0 is a fixed-output step-down switching regulator manufactured by TAEJIN Technology, operating at a switching frequency of 300kHz. It provides a fixed 5.0V output with a maximum load current of 3A. The device accepts an input voltage range of 8V to 40V. It integrates a 1.23V reference voltage and includes internal compensation for stability. The component utilizes an 8-SOP package with an exposed pad (SOP-PP) for thermal management.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated 300kHz switching frequency for compact passive component selection
• Fixed 5.0V output voltage option eliminating external resistor networks
• Internal frequency compensation simplifies design implementation
• Exposed pad package enhances thermal dissipation capabilities

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Input voltage conditioning for embedded controllers
• Battery-powered equipment requiring efficient step-down conversion
• General-purpose DC-DC power supply modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation as TAEJIN Technology or HTC Korea on the datasheet header. Confirm the suffix 'DP' indicates the specific SOP-PP package variant. Ensure the '5.0' suffix corresponds to the fixed 5V output version rather than the adjustable ADJ variant. Cross-reference the DigiKey part number 5536-LM4576DP-5.0TR-ND for accurate ordering details.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required without external feedback resistors. The 300kHz frequency allows for smaller inductors compared to 52kHz alternatives like the LM2576 series. Verify that the 3A current rating meets the peak load requirements. Ensure the 8V to 40V input range aligns with the source voltage availability.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM4576 family of 3A step-down regulators. It differs from the LM2576 series primarily by its higher 300kHz switching frequency, which enables more compact designs. The LM4576DP-5.0 is distinct from the LM4576DP-ADJ, which offers programmable output voltages between 1.23V and 37V via external resistors.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM4576DP-ADJ serves as a functional substitute if variable output voltage is acceptable. LM2576DP-5.0 is compatible but operates at a lower 52kHz frequency, requiring larger passive components. Verify pinout compatibility and thermal performance when substituting.