LM2575HVS-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVS-ADJ is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, designed for high-voltage applications. It operates with an input voltage range of 4 V to 60 V and delivers up to 1 A output current. The adjustable output voltage spans from 1.23 V to 57 V. Integrated features include a 52 kHz switching frequency, internal feedback reference of 1.23 V, and thermal shutdown protection. The device utilizes a TO-263-5 surface-mount package and supports operation across a temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck topology with fixed 52 kHz switching frequency
• Adjustable output voltage via external resistor divider
• Internal 1.23 V precision reference for regulation accuracy
• Thermal shutdown protection for robust operation

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial power supplies requiring wide input ranges
• Battery-powered systems with high-voltage sources
• Distributed power architectures in telecommunications
• Point-of-load regulation for microprocessors

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'NOPB' indicates lead-free and RoHS compliance when sourcing. Confirm the specific package variant matches the required PCB footprint. Ensure the application circuit includes appropriate input and output capacitors as specified in the official datasheet to maintain stability and meet performance requirements under varying load conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs needing a single-inductor buck solution with high input voltage tolerance. The adjustable version offers flexibility for custom output voltages compared to fixed variants. Consider the thermal dissipation capabilities of the TO-263 package for heat management in enclosed environments without active cooling.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the LM2575HV series, which provides simplified design for high-voltage step-down conversion. The 'S' suffix denotes the surface-mount TO-263 package, distinguishing it from through-hole versions like the LM2575HT. This series is part of Texas Instruments' SIMPLE SWITCHER family, emphasizing ease of use with minimal external components.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575HVSX-ADJ/NOPB (Reel variant)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the minimum output voltage achievable?

The minimum adjustable output voltage is 1.23 V, determined by the internal reference voltage.

Does the device support synchronous rectification?

No, the LM2575HVS-ADJ uses a non-synchronous buck topology with an internal switch and freewheeling diode.