Step-down Voltage Regulator Texas Instruments LM2575 HVT-5.0, fixed 5.0 V output, input 4–60 V, package SO-220-5

The Texas Instruments LM2575 HVT-5.0 is a step-down (buck) switching regulator that provides a fixed 5.0 V output from a wide input range of 4–60 V. Supplied in an SO-220-5 package for board-level mounting, this regulator is designed for high-voltage applications where efficient DC–DC conversion and a compact footprint are required. The device integrates switching control and reference circuitry to deliver a regulated 5 V rail suitable for embedded systems, industrial electronics, and battery-powered devices.

Advantages

The LM2575 HVT-5.0 offers high input-voltage tolerance and fixed-output simplicity, reducing external component count and design complexity. Its switching topology yields higher efficiency compared with linear regulators, lowering heat dissipation and improving power conversion for systems operating from a wide range of sources. The SO-220-5 package allows straightforward PCB mounting and thermal handling for moderate power levels.

Suitable for

• Embedded systems and microcontroller power supplies
• Industrial control electronics with high-voltage inputs
• Battery-powered equipment requiring regulated 5 V rails
• Board-level power modules and small DC–DC converters

Key specifications

• Function: Step-down (buck) switching regulator with fixed 5.0 V output
• Input voltage range: 4 V to 60 V
• Output voltage: Fixed 5.0 V
• Package type: SO-220-5 for through-hole/board mounting
• Application: DC–DC conversion for embedded and industrial electronics

How to use

Install the LM2575 HVT-5.0 on the PCB following the recommended footprint and orientation for the SO-220-5 package. Design the external components (inductor, diode, input and output capacitors) according to the manufacturer's application guidelines to ensure stability and achieve the specified output regulation. Provide adequate input and output decoupling, observe polarity when connecting the input supply and output load, and ensure the device is operated within the 4–60 V input range and within safe thermal limits.

Recommendations

For reliable operation, follow Texas Instruments' datasheet recommendations for component values, PCB layout, and thermal management. Use a low ESR output capacitor and a properly rated inductor and Schottky diode. Ensure thermal dissipation by providing copper area or a heatsink as required by the operating current and ambient temperature.