LM3673TLX-1.5/NOPB

$0.58

Description：IC REG BUCK 1.5V 350MA 5DSBGA
Series：-
Mfr：National Semiconductor
Package：Bulk

SKU:c9adcb37236f Category: Voltage Regulators - DC DC Switching Regulators Brand: National Semiconductor

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Product introduction

LM3673TLX-1.5/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 1.5V 350MA 5DSBGA. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM3673TLX-1.5/NOPB

Description：IC REG BUCK 1.5V 350MA 5DSBGA
Series：-
Mfr：National Semiconductor
Package：Bulk
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：2.7V
Voltage - Input (Max)：5.5V
Voltage - Output (Min/Fixed)：1.5V
Voltage - Output (Max)：-
Current - Output：350mA
Frequency - Switching：2MHz
Synchronous Rectifier：Yes
Operating Temperature：-30°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：5-WFBGA, DSBGA
Supplier Device Package：5-DSBGA (1.41x1.08)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM3673TLX-1.5/NOPB

LM3673TLX-1.5/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3673TLX-1.5/NOPB is a synchronous step-down DC-DC converter manufactured by Texas Instruments, formerly National Semiconductor. It features a fixed 1.5V output with a maximum current of 350mA. The device operates at a switching frequency of 2MHz and supports an input voltage up to 5.5V. It is housed in a 5-pin DSBGA package and functions within a temperature range of -30°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Synchronous rectification for improved efficiency
Fixed 1.5V output voltage regulation
Compact 5-pin DSBGA surface mount packaging

Voltage Regulators - DC DC Switching Regulators Applications

Portable battery-powered devices
Embedded systems requiring stable low-voltage rails
Mobile communication equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor. Confirm the specific suffix /NOPB indicates lead-free compliance. Ensure the fixed 1.5V output variant matches the design requirement, distinct from the adjustable version. Check package integrity for the small DSBGA form factor during inspection.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.5V rail is required with moderate current needs up to 350mA. The 2MHz frequency allows for smaller external inductors compared to lower-frequency alternatives. Consider the thermal performance of the DSBGA package for high-density PCB layouts. Verify input voltage compatibility within the 5.5V limit.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3673 series of buck converters. It represents the fixed-output variant (1.5V) of the broader family, which also includes adjustable versions like the LM3673TLX-ADJ. The transition from National Semiconductor branding to Texas Instruments reflects corporate acquisition history while maintaining technical continuity.