LM2591HVSX-3.3/NOPB

$2.70

Description：IC REG BUCK 3.3V 1A TO263
Series：SIMPLE SWITCHER®
Mfr：National Semiconductor
Package：Bulk

SKU:dbf653b7596c Category: Voltage Regulators - DC DC Switching Regulators Brand: National Semiconductor

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Product introduction

LM2591HVSX-3.3/NOPB is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is IC REG BUCK 3.3V 1A TO263. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2591HVSX-3.3/NOPB

Description：IC REG BUCK 3.3V 1A TO263
Series：SIMPLE SWITCHER®
Mfr：National Semiconductor
Package：Bulk
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：4.5V
Voltage - Input (Max)：60V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Current - Output：1A
Frequency - Switching：150kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package：TO-263 (DDPAK-5)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2591HVSX-3.3/NOPB

LM2591HVSX-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2591HVSX-3.3/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a 150 kHz step-down voltage regulator. It delivers a fixed 3.3 V output with a maximum current of 1 A. The device supports an input voltage range up to 60 V and operates within a junction temperature range of -40 °C to +125 °C. Packaged in a TO-263 (DDPAK) surface-mount housing, it integrates a 150 kHz internal oscillator and includes built-in frequency compensation for stable operation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrates a 150 kHz fixed-frequency internal oscillator
Includes built-in frequency compensation for simplified design
Features adjustable shutdown capability for low standby current
Provides thermal regulation and current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

General-purpose DC/DC step-down conversion
Pre-regulator for linear regulators
Efficient battery-powered systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation on official documentation, as National Semiconductor is now part of Texas Instruments. Confirm that the suffix /NOPB indicates lead-free and RoHS compliance. Ensure the specific package variant matches the required thermal and mechanical constraints for your application.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required from higher input voltages up to 60 V. It is suitable for designs needing a simple buck topology with minimal external components. Consider the 1 A current limit and TO-263 thermal performance for your power budget.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2591HV series of switching regulators. It is designed to replace older discrete solutions or less efficient linear regulators. The 'HV' designation indicates high-voltage input capability, distinguishing it from standard voltage variants within the broader family.