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LM2591HVS-3.3 is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG BUCK 3.3V 1A TO263. Review the specifications below when checking this part for your BOM.
The LM2591HVS-3.3/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a step-down voltage regulator with a fixed 3.3 V output. It supports an input voltage range of 4.5 V to 60 V and delivers up to 1 A of output current. The device operates at a switching frequency of 150 kHz and utilizes a TO-263-5 surface-mount package. It features a quiescent current of 5 mA and functions within a temperature range of -40 °C to +125 °C.
Verify the complete part number includes the /NOPB suffix to confirm lead-free compliance and RoHS adherence. Confirm the specific output voltage variant matches the design requirement, as the family offers multiple fixed options. Ensure the TO-263-5 package footprint aligns with the PCB layout specifications before finalizing procurement orders.
Select this component when a single-output buck converter is required for inputs up to 60 V. The fixed 3.3 V version eliminates external resistor networks, simplifying the design. Consider the 1 A current limit and 150 kHz frequency for applications prioritizing component size over ultra-low noise performance.
This device belongs to the LM2591HV series of SIMPLE SWITCHER converters. It shares the same core architecture as the LM2590HV but is optimized for higher efficiency and lower quiescent current. The series provides a robust solution for general-purpose power management tasks in industrial and commercial environments.
LM2591HVSX-3.3/NOPB serves as a direct pin-compatible substitute within the same product family.
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