LM2593HVSX-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2593HVSX-3.3/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a step-down switching regulator. It provides a fixed 3.3 V output with a maximum load current of 2 A. The device operates with an input voltage range up to 60 V and utilizes a 150 kHz switching frequency. It is housed in a TO-263 surface-mount package and supports an operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic controller for simplified buck converter design
• Fixed 3.3 V output option eliminates external resistor networks
• High efficiency operation at 150 kHz switching frequency
• Robust thermal performance suitable for high-power applications

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Power supplies for embedded systems requiring 3.3 V rails
• Battery-powered devices needing efficient step-down conversion
• Telecommunications infrastructure power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the suffix /NOPB to ensure lead-free compliance and specific tape-and-reel packaging configuration. Confirm that the required output current does not exceed the 2 A limit under your specific thermal conditions. Check datasheet derating curves for ambient temperature constraints when designing the heatsink or PCB copper area.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required with input voltages up to 60 V. It is appropriate for designs prioritizing simplicity over adjustable output flexibility. Compare against the LM2590HV if only 1 A output is sufficient, or the LM2596HV if higher current capacity is needed. Ensure the application can accommodate the external inductor and diode components required for the switching topology.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the SIMPLE SWITCHER family of integrated switching regulators. It shares architectural similarities with the LM2590HV and LM2596HV series but offers a higher current capability of 2 A compared to the 1 A variants. The HV designation indicates high-voltage input tolerance, making it suitable for direct connection to higher voltage buses without pre-regulation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2593HVS-3.3/NOPB (through-hole equivalent)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2593HVSX-3.3/NOPB?

The maximum input voltage is 60 V.

Does this regulator require external feedback resistors?

No, the -3.3 suffix indicates a fixed 3.3 V output version, which does not require external feedback resistors.