LM2591HVSX-3.3/NOPB

$4.53

Description：IC REG BUCK 3.3V 1A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:dbf653b7596c Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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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 Texas Instruments. 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：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
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 step-down voltage regulator with a buck topology. It provides a fixed output voltage of 3.3 V and supports an output current of 1 A. The device operates within an input voltage range of 4.5 V to 60 V and features a switching frequency of 150 kHz. It is housed in a TO-263-5 package for surface mount installation. The component ensures reliable performance across a wide temperature range, operating from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated monolithic controller and power switch for simplified design
Fixed internal switching frequency reduces external component count
Includes thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

Point-of-load regulation for high-voltage bus systems
Efficient pre-regulators for downstream linear regulators
Standard 48V industrial control system power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the suffix /NOPB to confirm lead-free compliance and RoHS status. Ensure the ordering code matches the specific TO-263-5 package variant. Confirm that the fixed 3.3 V output specification aligns with the target circuit requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a high-input voltage buck converter is required with minimal external parts. The fixed 150 kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Verify that the 1 A load current does not exceed the device's thermal limits under the expected ambient conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2591HV series, designed for high-voltage step-down applications. It serves as a direct replacement for older non-compliant versions and offers improved environmental standards. The series is widely used in industrial and automotive electronics requiring robust power conversion from high-voltage sources.