LM2595SX-3.3/NOPB

$2.16

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

SKU:f9f9ee345e36 Category: Voltage Regulators - DC DC Switching Regulators Brand: National Semiconductor

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

LM2595SX-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 LM2595SX-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)：40V
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 LM2595SX-3.3/NOPB

LM2595SX-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2595SX-3.3/NOPB is a step-down switching voltage regulator from the SIMPLE SWITCHER family, manufactured by Texas Instruments. It operates with an input voltage range of 4.5 V to 40 V and provides a fixed output voltage of 3.3 V at up to 1 A load current. The device utilizes a buck topology with a fixed switching frequency of 150 kHz. It is housed in a TO-263 surface-mount package (TO-263-5 or D2PAK variant) and supports operation across a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated power switch enables efficient buck conversion with minimal external components
Fixed 150 kHz switching frequency allows for compact passive component selection
Built-in thermal shutdown and current limit protection ensure operational reliability

Voltage Regulators - DC DC Switching Regulators Applications

Efficient pre-regulator for linear regulators
Point-of-load DC-DC conversion modules
Battery-powered systems requiring high efficiency

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the ordering suffix /NOPB confirms lead-free status and RoHS compliance as per manufacturer specifications. Confirm the specific package variant (TO-263-5 vs TO-263-6) matches the design footprint requirements. Ensure the fixed 3.3 V output version aligns with the target circuit voltage needs, as other voltage options exist within the same series.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required from an input source between 4.5 V and 40 V. The 1 A output current capability suits moderate power applications. Consider the TO-263 package for its thermal performance in surface-mount designs. If adjustable output is needed, the ADJ variant should be selected instead.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2595 series of SIMPLE SWITCHER power converters. The series includes multiple fixed output voltages (3.3 V, 5 V, 12 V) and an adjustable version. The SX suffix indicates the surface-mount TO-263 package variant, distinguishing it from through-hole TO-220 versions.