LM2594N-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2594N-ADJ/NOPB is a monolithic integrated circuit from the SIMPLE SWITCHER family, functioning as a step-down switching voltage regulator. It operates with an input voltage range of 4.5 V to 40 V and provides an adjustable output voltage between 1.2 V and 37 V. The device delivers a maximum output current of 500 mA at a fixed switching frequency of 150 kHz. It utilizes a through-hole MDIP-8 package and supports an operating temperature range from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a power switch capable of handling up to 500 mA output current
• Includes internal frequency compensation for simplified external component requirements
• Features a fixed 150 kHz oscillation frequency to minimize passive filter size
• Provides independent shutdown control for low-power standby applications

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring regulated DC power
• Distributed power supply architectures
• Battery-powered equipment with high input voltage ranges
• Pre-regulator stages for downstream linear regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'N' confirms the through-hole MDIP-8 package variant rather than surface-mount options. Confirm the 'ADJ' designation indicates the adjustable output version, distinct from fixed-voltage counterparts. Ensure compatibility with standard DIP socketing or PCB drilling specifications during integration planning.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a robust through-hole solution is required for high-input voltage buck conversion. The 40 V maximum input rating suits industrial bus applications. Consider thermal management strategies due to the single-output topology and 500 mA limit. Verify that the 150 kHz frequency aligns with electromagnetic interference constraints in the target enclosure.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2594HV series, designed for high-voltage step-down regulation. It simplifies power supply design by integrating the controller, oscillator, and power transistor into a single package. The adjustable output variant allows flexibility in setting precise voltage levels using external resistors, catering to diverse system requirements within the SIMPLE SWITCHER portfolio.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2594N-5.0/NOPB serves as a direct pin-compatible alternative if a fixed 5 V output is sufficient. LM2594HVN-ADJ/NOPB offers a higher 60 V input rating while maintaining the same through-hole package and adjustable functionality.