LM2594M-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2594M-3.3/NOPB is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, housed in an 8-SOIC surface-mount package. It operates with an input voltage range of 4.5 V to 40 V and provides a fixed 3.3 V output at up to 500 mA. The device integrates a 150 kHz fixed-frequency oscillator for low external component count. It features internal frequency compensation, a 5 mA typical quiescent current, and a shutdown pin for power management. The operational temperature range spans from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated 150 kHz fixed-frequency oscillator reduces external component requirements
• Internal frequency compensation simplifies design and layout
• Dedicated shutdown pin enables low-power standby modes
• Robust thermal protection safeguards operation under overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Pre-regulation stages for switching regulators
• Battery-powered equipment requiring efficient step-down conversion
• Industrial control system power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm the fixed 3.3V output configuration and RoHS compliance status. Ensure the SOIC-8 package dimensions match your PCB footprint requirements. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and current production status before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a reliable 3.3V rail is needed from higher voltage sources within the 40V limit. The 500mA current rating suits moderate load applications. Consider the 8-SOIC package for space-constrained designs. Evaluate thermal performance based on expected ambient temperatures and load currents to ensure operation remains within the specified junction temperature limits.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2594 family of SIMPLE SWITCHER regulators, designed for high-efficiency DC-DC conversion. The 'M' suffix indicates the commercial temperature grade variant packaged in SOIC-8. The 'NOPB' designation confirms lead-free construction and RoHS compliance. This series is widely used for its simplicity and robust performance in general-purpose power supply designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2594MX-3.3/NOPB offers identical electrical specifications in an MX (smaller) SOIC-8 package, requiring PCB footprint adaptation. LM2594N-3.3/NOPB provides through-hole mounting options but differs in physical package type. Verify pinout compatibility and thermal characteristics when substituting these variants.