LM3671MFX-1.5/NOPB

$0.32

Description：IC REG BUCK 1.5V 600MA SOT23-5
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:3f5f37abc318 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM3671MFX-1.5/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 1.5V 600MA SOT23-5. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM3671MFX-1.5/NOPB

Description：IC REG BUCK 1.5V 600MA SOT23-5
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)
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：600mA
Frequency - Switching：2MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：SC-74A, SOT-753
Supplier Device Package：SOT-23-5
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM3671MFX-1.5/NOPB

LM3671MFX-1.5/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3671MFX-1.5/NOPB is a fixed-output synchronous step-down DC-DC converter from Texas Instruments, delivering a regulated 1.5V output at up to 600mA. It operates within an input voltage range of 2.7V to 5.5V and features a switching frequency of 2MHz. The device utilizes SOT-23-5 packaging and supports an operating temperature range from -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrates synchronous rectification for high efficiency across load ranges
Automatically switches between PWM and PFM modes to optimize light-load performance
Includes internal protection mechanisms such as overcurrent limiting and thermal shutdown

Voltage Regulators - DC DC Switching Regulators Applications

Powering low-voltage digital circuits from single-cell lithium-ion batteries
Portable consumer electronics including MP3 players and PDAs
Battery-operated handheld devices requiring compact power solutions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free compliance and RoHS status. Confirm the 'MF' package variant matches the required SOT-23-5 footprint dimensions. Ensure the fixed 1.5V output aligns with target circuit requirements, as adjustable variants exist within the same family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.5V rail is required in space-constrained designs. The 2MHz frequency allows for smaller external inductors compared to lower-frequency alternatives. Consider the 600mA current limit against peak load demands to ensure adequate headroom without excessive thermal dissipation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3671 series of ultra-small synchronous buck converters. It shares core topology and control logic with other variants like the LM3671MFX-ADJ but differs in its fixed internal feedback network setting the output voltage. The series targets portable applications where board area and battery life are critical constraints.