LM2594HVN-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2594HVN-3.3/NOPB is a high-voltage step-down switching regulator from Texas Instruments, operating with an input voltage range of 4.5V to 60V and delivering a fixed 3.3V output at up to 500mA. It utilizes a buck topology with a fixed 150kHz switching frequency. The device features integrated current limiting and thermal shutdown protection. It is housed in an 8-pin PDIP package and operates within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 3.3V output eliminates external resistor divider requirements for standard logic levels
• Integrated power switch supports direct connection to high-voltage bus lines
• Built-in thermal shutdown and current limit protect against overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or non-isolated DC-DC conversion
• Automotive electronics powered by 12V or 24V battery architectures
• Distributed power supply architectures in communication equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'N' confirms through-hole packaging compatibility. Confirm 'NOPB' indicates lead-free and RoHS compliance status. Ensure the specific revision matches design requirements for thermal management in enclosed spaces.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this variant when a fixed 3.3V rail is required without external feedback components. Compare against adjustable versions if system flexibility for multiple voltages is needed. Consider thermal dissipation capabilities given the 500mA continuous load rating.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the LM2594HV series designed for high-input voltage applications. Distinguishes from surface-mount variants by its PDIP package style. Offers simplified design compared to discrete solutions while maintaining robust performance in noisy environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2594HVN-ADJ/NOPB provides adjustable output instead of fixed 3.3V. LM2594MX-3.3/NOPB offers identical electrical specifications but in a surface-mount SOIC package.