LM2596SX-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2596SX-5.0 is a Texas Instruments SIMPLE SWITCHER step-down voltage regulator in TO-263-5 package. It provides a fixed 5V output with up to 3A load current. Input voltage ranges from 4.5V to 40V, supporting outputs up to 37V. Operating frequency is 150kHz. Efficiency reaches 80%. Output ripple and noise are specified at 3%. Operating temperature spans -40°C to +125°C. Minimum input voltage is 4.5V; maximum is 40V.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated 150 kHz switching frequency for reduced filter component size
• Fixed 5.0V output voltage option within the LM2596 series
• Capable of driving 3A loads with excellent line and load regulation
• Includes internal frequency compensation and fixed-frequency oscillator

Voltage Regulators - DC DC Switching Regulators Applications

• Consumer electronics power supplies
• On-card DC/DC conversion
• Post-regulation circuits for switching regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify manufacturer origin as National Semiconductor was acquired by Texas Instruments. Confirm suffix NOPB indicates lead-free/RoHS compliance. Ensure TO-263-5 surface mount package matches design requirements. Validate 5V fixed output specification against circuit needs. Check operating temperature range suitability for application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part for applications requiring a simple, high-efficiency buck converter solution. The fixed 5V output eliminates external feedback resistor networks required by adjustable variants. Consider thermal management due to TO-263 package characteristics under full 3A load. Verify input voltage stability within the 4.5V to 40V range to ensure proper operation.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the LM2596 family of monolithic integrated step-down converters. Originally developed by National Semiconductor, now manufactured by Texas Instruments. Designed to simplify switch-mode power supply designs with minimal external components. Offers fixed voltage options alongside adjustable versions for versatile power management applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2596S-5.0/NOPB: Direct equivalent in TO-220 through-hole package. LM2596SX-ADJ/NOPB: Adjustable output variant requiring external resistors. LM2596S-ADJ/NOPB: Through-hole adjustable version. Verify pin compatibility and thermal performance when substituting packages.