LM2595SX-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2595SX-3.3/NOPB is a SIMPLE SWITCHER® step-down switching voltage regulator from Texas Instruments, designed for high-efficiency power conversion. It operates with an input voltage range of 4.5V to 40V and provides a fixed 3.3V output at up to 1A. The device integrates a 150kHz oscillator and features internal frequency compensation, eliminating the need for external components for stability. It utilizes TO-263 (D²PAK) surface-mount packaging to facilitate thermal management in compact designs.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a monolithic switching regulator with internal frequency compensation
• Supports wide input voltage ranges suitable for various supply sources
• Includes built-in thermal shutdown and current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for distributed power architectures
• Pre-regulator stages for switching regulators
• Efficient buck converters for embedded systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'NOPB' indicates lead-free composition and RoHS compliance. Confirm the package designation matches the required TO-263 footprint. Ensure the specific output voltage variant corresponds to the system requirement. Check datasheet revisions for any pinout or electrical characteristic updates prior to finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required from higher voltage rails. It is suitable for applications needing moderate current capability without complex external feedback networks. Consider the thermal performance of the TO-263 package relative to the expected load current and ambient temperature conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2595 series of SIMPLE SWITCHER regulators. The family includes adjustable versions and other fixed voltage outputs. The SX suffix denotes the surface-mount D²PAK package type, distinguishing it from through-hole variants like the T-series. The series is characterized by minimal external component count and robust protection features.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2595SX-3.3/NOPB serves as a direct replacement for older non-NOPB versions with identical functionality. Cross-reference with LM2595SX-ADJ if variable output is acceptable. Verify pin compatibility with alternative buck regulators before substitution.