LM2595S-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2595S-12/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, operating at a fixed switching frequency of 150 kHz. It accepts an input voltage range of 4.5 V to 40 V and provides a fixed output of 12 V with a maximum continuous output current of 1 A. The device features a typical quiescent current of 5 mA and supports operation across an extended temperature range from -40°C to +125°C. Packaged in a TO-263 (DPAK) surface-mount housing, it integrates internal compensation and protection functions for efficient DC-DC conversion.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck topology simplifies design by requiring minimal external components
• Fixed 150 kHz switching frequency enables the use of smaller passive filters
• Internal thermal shutdown and current limiting protect against overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment power conditioning
• General-purpose DC-DC step-down conversion modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (e.g., NOPB) to confirm lead-free compliance and RoHS status. Confirm package variant matches the required thermal pad configuration. Check datasheet for humidity sensitivity level and reflow soldering profile requirements. Ensure input/output capacitor values meet the minimum specifications for stability.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output is required from a wide input range up to 40 V. It is suitable for applications needing up to 1 A load current with moderate efficiency requirements. Consider the TO-263 package for adequate heat dissipation without additional heatsinks in low-power scenarios. Compare with LM2596 if higher current capacity is needed.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the SIMPLE SWITCHER family, the LM2595 series offers a cost-effective solution for isolated or non-isolated DC-DC conversion. It serves as a lower-current alternative to the LM2596 series, which supports up to 3 A. The device is designed for easy implementation in compact power supply designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2595S-12/NOPB is the direct lead-free equivalent. LM2596S-12/NOPB offers similar functionality but with a higher 3 A output current rating. LM2595SX-12/NOPB utilizes a SOIC package instead of TO-263.