LM2575S-15/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575S-15/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, housed in a TO-263-5 surface-mount package. It provides a fixed 15 V output with a maximum load current of 1 A. The device operates within an input voltage range of 4 V to 40 V and features a typical switching frequency of 52 kHz. It includes internal frequency compensation, thermal shutdown, and current limiting for robust performance across industrial temperature ranges.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck topology with built-in oscillator and frequency compensation
• Fixed 15 V output with ±4% accuracy under specified conditions
• Built-in thermal shutdown and per-cycle current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring regulated step-down conversion
• Pre-regulator circuits for downstream switching regulators
• Efficient replacement for linear regulators in high-dissipation applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free/RoHS compliance relative to older non-NOPB variants. Confirm the TO-263-5 package matches your PCB footprint requirements. Ensure the fixed 15 V output aligns with system voltage needs, as adjustable versions exist within the same family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 15 V output is required at up to 1 A with minimal external components. Consider the TO-263-5 package for surface-mount assembly. Evaluate thermal management needs based on input-output voltage differential and load current, as efficiency varies with operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the LM2575 series of monolithic integrated step-down converters. This specific variant offers a fixed 15 V output, distinguishing it from adjustable (ADJ) or other fixed voltage options like 3.3 V, 5 V, or 12 V within the same product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575S-15 is the non-RoHS predecessor. LM2575T-15/NOPB offers through-hole TO-220 packaging. LM2575HVS-15/NOPB supports higher input voltages up to 60 V.