LM2594M-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2594M-5.0/NOPB is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, operating at a fixed 150 kHz switching frequency. It provides a fixed 5 V output with a maximum load current of 500 mA. The device accepts an input voltage range from 4.5 V to 40 V and features a typical quiescent current of 5 mA. It utilizes a SOIC-8 surface-mount package and supports operation within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch rated for 0.5 A continuous current
• Fixed internal switching frequency of 150 kHz for reduced component size
• Built-in thermal shutdown circuitry for robust protection
• Standard 5-pin TO-220 compatible pinout adapted for surface mount

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load DC/DC conversion modules
• Pre-regulation stages for linear regulators
• Battery-powered systems requiring efficient step-down topology
• General-purpose 5 V regulated power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix designation (e.g., NOPB) to confirm lead-free compliance and RoHS status. Ensure the ordering part number matches the required package variant, as the M-suffix indicates a specific surface-mount footprint distinct from through-hole options. Cross-reference the manufacturer datasheet revision to confirm electrical characteristics align with the design requirements before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required with moderate current demands up to 500 mA. It is suitable for designs prioritizing simplicity and cost-effectiveness over high-efficiency variable frequency operation. Consider the input voltage range limits and thermal dissipation capabilities in the SOIC-8 package when evaluating suitability for high ambient temperature environments or compact form factors.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2594 series of SIMPLE SWITCHER regulators, designed for straightforward buck converter applications. It integrates the control logic, oscillator, and power switch into a single IC, minimizing external component count. The series is characterized by its reliability and ease of use in standard industrial and commercial power supply architectures.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2594MX-5.0/NOPB: Identical functional specifications with minor packaging or reel variation.