LM3671MF-1.25

$0.82

Description：IC REG BUCK 1.25V 600MA SOT23-5
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:0611ca0cdc14 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM3671MF-1.25 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 1.25V 600MA SOT23-5. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM3671MF-1.25

Description：IC REG BUCK 1.25V 600MA SOT23-5
Series：-
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)：2.7V
Voltage - Input (Max)：5.5V
Voltage - Output (Min/Fixed)：1.25V
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 LM3671MF-1.25

LM3671MF-1.25

Voltage Regulators - DC DC Switching Regulators Overview

The LM3671MF-1.25/NOPB is a fixed-output step-down DC-DC converter from Texas Instruments, delivering a precise 1.25 V output at up to 600 mA. Operating with an input voltage range of 2.7 V to 5.5 V, it utilizes a 2.6 MHz switching frequency to enable compact designs. The device features a SOT-23-5 package and maintains a typical quiescent current of 16 µA in PFM mode, extending battery life in portable applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Intelligent automatic switching between low-noise PWM and low-current PFM modes for optimized efficiency across load ranges
Internal synchronous rectification ensures high energy conversion during active operation
Integrated protection mechanisms including thermal shutdown and current overload limiting

Voltage Regulators - DC DC Switching Regulators Applications

Powering low-voltage circuits in mobile phones and handheld devices
Battery-powered portable systems requiring extended standby time
General-purpose step-down conversion for single-cell lithium-ion inputs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix /NOPB confirms lead-free compliance and RoHS adherence. Confirm the MF package variant matches the required SOT-23-5 footprint. Ensure the fixed 1.25 V output aligns with target circuit requirements, as adjustable versions exist within the same family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.25 V rail is required from a 2.7–5.5 V source. It is suitable for space-constrained designs due to the small SOT-23-5 package and minimal external component count. Consider the 16 µA quiescent current for battery-sensitive applications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3671 series of 2 MHz, 600 mA step-down converters. It shares architectural similarities with other variants like the LM3671MF-ADJ but provides a fixed voltage output. The series is designed for portable electronics, offering high efficiency and small solution size through internal synchronous rectification.