LM2593HVT-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2593HVT-3.3/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, operating at a fixed 150 kHz switching frequency. It provides a fixed 3.3 V output with a maximum load current of 2 A. The device accepts an input voltage range of 4.5 V to 60 V and features an internal power switch rated for 3 A. Packaged in a TO-220-7 through-hole case, it operates within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch eliminates the need for external components
• Fixed 150 kHz switching frequency allows for compact passive component selection
• Internal frequency compensation simplifies design implementation
• Onboard thermal shutdown protects against excessive heat conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for distributed power architectures
• Efficient pre-regulators for linear post-regulators
• Standard 5V, 12V, or 24V bus conversion systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'T' confirms the TO-220-7 through-hole package variant rather than surface-mount options. Confirm 'NOPB' indicates lead-free and RoHS compliance status. Ensure the '-3.3' designation matches the required fixed output voltage specification for the target circuit design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a through-hole solution is preferred for higher current applications requiring up to 2 A. The wide 60 V input range accommodates noisy industrial environments. Consider thermal management requirements due to the single-ended buck topology and lack of synchronous rectification compared to newer generations.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2593HV series, designed for high-voltage step-down conversions. It shares architectural similarities with the LM2590 and LM2592 series but offers distinct pinout and current capabilities tailored for specific power density requirements in legacy and robust industrial designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2593HVS-3.3/NOPB (Surface Mount Variant)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage supported by this regulator?

The LM2593HVT-3.3/NOPB supports a maximum input voltage of 60 V.

Does this device include short-circuit protection?

Yes, the device incorporates cycle-by-cycle current limiting and thermal shutdown protection.