LM2598SX-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2598SX-12/NOPB is a SIMPLE SWITCHER step-down switching regulator manufactured by Texas Instruments. It operates with an input voltage range of 4.5V to 40V and provides a fixed 12V output at up to 1A. The device utilizes a 150kHz switching frequency, enabling the use of smaller external components. It is housed in a TO-263 (DDPAK-7) surface-mount package and supports an operating junction temperature from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic buck converter topology for efficient DC-DC step-down conversion
• Fixed 12V output configuration simplifies design without external feedback networks
• Internal oscillator enables compact passive component selection through high-frequency operation
• Thermal performance optimized for surface-mount applications via exposed pad package

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems requiring 12V supply
• Input voltage reduction from higher bus voltages to stable 12V rails
• Power conditioning for industrial control modules within specified thermal limits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor. Confirm the suffix /NOPB indicates lead-free and RoHS compliance. Ensure the package matches the TO-263 form factor and validate the fixed 12V output variant against schematic requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from an input range between 4.5V and 40V. The 1A current capacity suits moderate load applications. Consider the TO-263 package for thermal management needs. Verify that the 150kHz frequency aligns with electromagnetic interference constraints and inductor availability in the target design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2598 family of SIMPLE SWITCHER regulators. It shares architectural similarities with other variants like the LM2598S-5.0 but differs in output voltage specification. The SX suffix denotes the specific surface-mount package type used in this iteration.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2598S-12/NOPB is a documented equivalent variant within the same product line offering identical electrical specifications and functionality.