LM3670MFX-1.6/NOPB

$0.32

Description：IC REG BUCK 1.6V 350MA SOT23-5
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:954ddbb0950a Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM3670MFX-1.6/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 1.6V 350MA SOT23-5. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM3670MFX-1.6/NOPB

Description：IC REG BUCK 1.6V 350MA 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)：2.5V
Voltage - Input (Max)：5.5V
Voltage - Output (Min/Fixed)：1.6V
Voltage - Output (Max)：-
Current - Output：350mA
Frequency - Switching：1MHz
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 LM3670MFX-1.6/NOPB

LM3670MFX-1.6/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3670MFX-1.6/NOPB is a miniature step-down DC-DC converter manufactured by Texas Instruments, designed for ultra-low voltage circuits. It operates with an input voltage range of 2.5 V to 5.5 V and provides a fixed output voltage of 1.6 V. The device delivers up to 750 mA of output current and features a switching frequency of 1.3 MHz. It utilizes a SOT-23-5 package and supports automatic PFM/PWM mode switching to optimize efficiency across varying load conditions.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Miniature step-down DC-DC converter topology optimized for space-constrained designs
Automatic transition between Pulse Frequency Modulation (PFM) and Pulse Width Modulation (PWM) modes
Ultra-low quiescent current capability for extended battery life in portable applications

Voltage Regulators - DC DC Switching Regulators Applications

Portable consumer electronics requiring low power consumption
Battery-powered devices operating under ultra-low voltage constraints
Space-limited embedded systems utilizing SOT-23-5 packaging

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix NOPB indicates lead-free compliance and RoHS adherence as per manufacturer specifications. Confirm the fixed 1.6 V output variant matches the design requirement, distinguishing it from adjustable or other fixed voltage versions within the LM3670 family. Ensure the SOT-23-5 package type aligns with PCB footprint constraints.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.6 V output is required from a single-cell lithium-ion or similar power source. The 1.3 MHz switching frequency allows for smaller external inductors compared to lower-frequency alternatives. Consider the 750 mA current limit for load requirements and verify thermal performance within the -40°C to +85°C operating temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3670 series of miniature step-down converters from Texas Instruments. It shares architectural similarities with the LM3671 and LM3674 but differs in output current capacity and switching frequency characteristics. The series targets applications demanding high efficiency in minimal footprints.