LM2575HVSX-15/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVSX-15/NOPB is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, designed for high-voltage input applications up to 60V. It delivers a fixed 15V output at a maximum current of 1A. The device operates with a switching frequency of 52kHz and supports an input voltage range of 4V to 60V. It features a TO-263-6 (D2PAK) surface-mount package and functions within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch eliminates the need for external components typically required in discrete designs.
• Fixed internal feedback network ensures precise regulation without requiring external resistor dividers.
• Built-in thermal shutdown circuitry protects the device against excessive heat during overload conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring high-voltage step-down conversion
• Pre-regulator stages for downstream switching regulators
• Efficient on-card regulation from bus voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'NOPB' confirms lead-free and RoHS compliance status as per manufacturer specifications. Confirm the 'S' designation indicates the surface-mount TO-263 variant rather than the through-hole version. Ensure the part number matches the fixed 15V output requirement, as other suffixes denote different voltages or adjustable configurations.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 15V output is required from inputs up to 60V. It is suitable for designs needing 1A continuous current with minimal external component count. Consider the TO-263 package for thermal management needs compared to smaller packages. Verify that the 52kHz switching frequency aligns with electromagnetic interference constraints in the target application.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575HV series of SIMPLE SWITCHER regulators, which are optimized for high-input voltage applications. The series includes fixed voltage options and adjustable variants. The LM2575HVSX-15/NOPB specifically represents the surface-mount iteration with lead-free packaging, distinguishing it from older non-compliant or through-hole versions in the same family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575HVS-15/NOPB is the through-hole equivalent offering identical electrical performance in a different package format. LM2575HVSX-ADJ/NOPB provides an adjustable output range if the fixed 15V constraint is not mandatory. Cross-reference datasheets to ensure pinout compatibility and thermal characteristics match the existing design layout.