LM2594HVN-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2594HVN-ADJ/NOPB is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, designed for high-voltage applications. It operates with an input voltage range of 4.5 V to 60 V and provides an adjustable output voltage from 1.2 V to 57 V. The device delivers a maximum output current of 500 mA at a fixed switching frequency of 150 kHz. It utilizes a PDIP-8 through-hole package and includes internal features such as a 150 kHz oscillator, current limit protection, and thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a power switch rated for high input voltages up to 60 V
• Fixed 150 kHz switching frequency enables use of smaller passive components
• Includes built-in thermal shutdown and frequency-foldback current limiting
• Features a dedicated enable pin for low-power standby operation

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring wide input voltage ranges
• Battery-powered equipment with multi-cell configurations
• Distributed power supply architectures
• Post-regulation stages for higher voltage buses

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (e.g., NOPB) to confirm lead-free compliance and RoHS status. Confirm the package type matches the design requirements, as this model uses a PDIP-8 through-hole configuration. Ensure the application circuit accounts for the 60 V maximum input rating and proper thermal management for the through-hole package.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a buck converter must handle input voltages significantly higher than standard 40 V devices. The PDIP-8 package is suitable for prototyping or applications where surface-mount space is less critical than ease of assembly. Consider the 150 kHz frequency trade-off between component size and efficiency compared to higher-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2594HV series, which extends the standard LM2594 capabilities to support higher input voltages. It is part of Texas Instruments' SIMPLE SWITCHER family, known for simplified design through integrated power switches and compensation. The HV variant specifically targets industrial and automotive environments with wider voltage fluctuations.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2594HVMX-ADJ/NOPB offers the same electrical specifications in a SOIC-8 surface-mount package. LM2594N-ADJ/NOPB is a lower-voltage version limited to 40 V input. Cross-reference datasheets to ensure input voltage ratings and package dimensions align with the target design constraints.