LM2575HVSX-15

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVSX-15 is a SIMPLE SWITCHER 1A step-down voltage regulator manufactured by Texas Instruments. It operates as a buck topology switch-mode power supply with a fixed 15V output and 1A maximum current capability. The device supports an input voltage range from 4V to 60V, utilizing a 52kHz internal switching frequency. Housed in a TO-263-6 (D2PAK) surface-mount package, it functions within a temperature range of -40°C to 125°C TJ. Key electrical parameters include a typical quiescent current of 5mA and moisture sensitivity level 3.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-efficiency buck converter architecture designed to replace linear regulators
• Built-in thermal shutdown and cycle-by-cycle current limiting for fault protection
• TTL shutdown pin enables low-power standby mode with minimal quiescent current
• Requires minimal external components due to integrated oscillator and frequency compensation

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment requiring efficient DC-DC conversion
• General-purpose power supplies with wide input voltage ranges
• Industrial control systems operating in harsh thermal environments

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific ordering suffix matches the required tape-and-reel packaging configuration. Confirm that the component meets RoHS3 compliance standards if environmental regulations apply to the final assembly. Ensure the supplier provides valid traceability documentation for the TO-263 package variant. Cross-reference the manufacturer part number against official TI databases to avoid counterfeit or obsolete stock substitutions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 15V output is required from inputs up to 60V. The TO-263 package offers superior thermal dissipation compared to smaller SMD options. Consider the 52kHz switching frequency for EMI constraints and standard inductor availability. Verify that the 1A load requirement does not exceed the thermal limits of the PCB layout under worst-case ambient conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575HV series of SIMPLE SWITCHER regulators. It serves as a high-voltage version of the popular LM2575 family, offering enhanced input voltage tolerance. The series is known for simplifying switch-mode power supply design through standardized inductor selection and minimal external circuitry requirements.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575HVS-15/NOPB is a direct pin-compatible alternative with updated manufacturing processes. LM2575HVSX-15/NOPB represents the same functional device with verified RoHS3 compliance. Check datasheet revisions for any changes in thermal characteristics or recommended external component values.