LM2575HVN-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVN-ADJ is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a step-down voltage regulator. It integrates a 1A switching element and operates at a fixed frequency of 52kHz. The device supports an input voltage range up to 60V and provides an adjustable output voltage between 1.23V and 57V. Designed for through-hole mounting in a TO-220-5 package, it ensures stable performance across a wide operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage 1A switching transistor simplifies external component requirements
• Fixed-frequency operation eliminates the need for external clock synchronization
• Internal frequency compensation reduces the count of required external components
• Built-in thermal shutdown protects against overheating during fault conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring high input voltages
• Pre-regulator circuits for downstream switching regulators
• Efficient straight-through power supplies with wide input ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'HV' confirms high-voltage capability (60V max) distinct from standard variants. Ensure the 'N' indicates lead-free/RoHS compliance and 'ADJ' specifies the adjustable output version. Confirm the TO-220-5 package matches the target PCB footprint before ordering.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages exceed 40V or when a robust 1A buck solution is needed. The adjustable output allows flexibility for various load requirements. Consider the thermal dissipation capabilities of the TO-220 package for high-power applications without additional heatsinking constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 family of SIMPLE SWITCHER regulators, known for ease of use and minimal external circuitry. The HV variant specifically extends the input voltage tolerance compared to standard versions, making it suitable for industrial and automotive environments with noisy or high-voltage power rails.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575HVT-ADJ/NOPB offers identical electrical specifications but utilizes a through-hole TO-220-5 package instead of surface mount options.