LM2670LDX-ADJ

$1.15

Description：IC REG BUCK ADJ 3A 14VSON
Series：SIMPLE SWITCHER®
Mfr：National Semiconductor
Package：Bulk

SKU:71ed31f4b5ed Category: Voltage Regulators - DC DC Switching Regulators Brand: National Semiconductor

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Product introduction

LM2670LDX-ADJ 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 ADJ 3A 14VSON. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2670LDX-ADJ

Description：IC REG BUCK ADJ 3A 14VSON
Series：SIMPLE SWITCHER®
Mfr：National Semiconductor
Package：Bulk
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：8V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：1.2V
Voltage - Output (Max)：37V
Current - Output：3A
Frequency - Switching：260kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：14-VDFN Exposed Pad
Supplier Device Package：14-VSON (6x5)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2670LDX-ADJ

LM2670LDX-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2670LDX-ADJ is a SIMPLE SWITCHER high-efficiency 3A step-down voltage regulator manufactured by National Semiconductor. It operates with a fixed switching frequency of 260 kHz and supports an input voltage range from 8 V to 40 V. The device provides an adjustable output voltage ranging from 1.2 V to 37 V. It utilizes synchronous rectification for improved efficiency and is housed in a 14-pin LLP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated synchronous rectification for enhanced conversion efficiency
Fixed 260 kHz switching frequency enabling compact external component sizing
Adjustable output voltage capability via external resistor network

Voltage Regulators - DC DC Switching Regulators Applications

Point-of-load regulation for embedded systems
Industrial control power supplies
Telecommunications equipment backend power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation, as Texas Instruments acquired National Semiconductor. Confirm the specific suffix indicates the LLP-14 package and adjustable output variant. Ensure RoHS compliance status matches project requirements. Cross-reference the datasheet revision to confirm pinout and thermal characteristics align with the intended PCB layout.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 3A buck converter with integrated synchronous rectification is required. The adjustable output allows flexibility for various rail voltages between 1.2 V and 37 V. The 260 kHz frequency balances efficiency and component size. Verify that the input voltage does not exceed 40 V and that thermal management suits the LLP-14 package constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM267x family of SIMPLE SWITCHER regulators. It shares architectural similarities with the LM2676 and LM2677 but offers lower current ratings compared to the latter. The synchronous design distinguishes it from earlier non-synchronous buck regulators in the portfolio, providing better performance at light loads.