LM2596S-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2596S-ADJ/NOPB is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, operating at a fixed 150 kHz switching frequency. It supports an input voltage range of 4.5 V to 40 V and provides an adjustable output voltage between 1.2 V and 37 V with a maximum output current of 3 A. The device utilizes a TO-263-5 surface-mount package and functions as a buck converter topology. It operates within a temperature range of -40 °C to +125 °C and includes internal frequency compensation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a fixed-frequency oscillator for simplified external component requirements
• Includes internal frequency compensation to reduce design complexity
• Features TTL-compatible shutdown control for low-power standby modes

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems
• Pre-regulators for switching regulators
• Efficient linear regulator replacements

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB confirms lead-free and RoHS compliance status per the manufacturer's datasheet. Confirm the TO-263-5 package variant matches the specific thermal and footprint requirements of the target PCB design. Ensure the ADJ designation aligns with the need for an adjustable output voltage rather than a fixed voltage option.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a high-efficiency buck converter is required for inputs up to 40 V. The adjustable output range allows flexibility for various load voltages. Consider the TO-263-5 package for surface-mount assembly needs. Evaluate thermal management requirements given the 3 A continuous current capability and the specific ambient operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2596 series of SIMPLE SWITCHER regulators. It shares core electrical characteristics with other variants in the family, such as the LM2596T-ADJ/NOPB, but differs in physical packaging. The S suffix indicates a surface-mount TO-263 package, whereas T denotes a through-hole TO-220 package.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-to-pin replacements within the same series include LM2596SX-ADJ/NOPB. Verify that any substitute maintains the 150 kHz switching frequency and 3 A current rating to ensure circuit compatibility without redesigning the passive components.