LM2595S-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2595S-12/NOPB is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, housed in a TO-263-5 package. It operates with an input voltage range of 4.5 V to 40 V and provides a fixed output of 12 V at up to 1 A. The device integrates a 150 kHz switching frequency and features a shutdown mode with a typical quiescent current of 5 mA. It supports operation across a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a power switch for high-efficiency buck conversion
• Includes internal frequency compensation for simplified design
• Features thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Efficient step-down regulators
• Pre-regulators for linear regulators
• On-card regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation as Texas Instruments despite the National Semiconductor origin of the LM2595 family. Confirm the suffix NOPB indicates lead-free and RoHS compliance. Ensure the TO-263-5 package matches the required footprint. Check datasheet revisions for any pinout or electrical specification updates prior to final procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a fixed 12 V output from higher input voltages up to 40 V. It is suitable where moderate efficiency and low external component count are priorities. Consider the TO-263-5 package for thermal management needs. Evaluate if the 150 kHz frequency aligns with EMI constraints and inductor size requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2595 series of SIMPLE SWITCHER regulators. It represents a legacy product line originally developed by National Semiconductor before its acquisition by Texas Instruments. The device is designed to replace traditional linear regulators in systems requiring improved efficiency and reduced heat dissipation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2595SX-12/NOPB (Same series, different package variant)

Voltage Regulators - DC DC Switching Regulators FAQ

Is the LM2595S-12/NOPB a synchronous rectifier?

No, it uses a non-synchronous buck topology with an integrated power switch.

What is the maximum input voltage?

The maximum input voltage is 40 V.