LM3670MF-1.8 - Texas Instruments

Manufacturer Part Number

LM3670MF-1.8

Manufacturer

Texas Instruments

Introduction

LM3670MF-1.8 is a step-down (buck) voltage regulator designed for power management in portable electronic devices

Product Features and Performance

Integrated synchronous rectifier for efficiency

High-frequency switching at 1MHz allows for small external components

Fixed 1.8V output voltage for consistent performance

Capable of delivering 350mA of output current

Wide input voltage range from 2.5V to 5.5V

Thermal shutdown and current overload protection

Product Advantages

High-efficiency power conversion

Compact SC-74A, SOT-753 package ideal for space-constrained applications

Requires minimal external components due to high switching frequency

Key Technical Parameters

Output Configuration: Positive

Topology: Buck

Voltage - Input (Min): 2.5V

Voltage - Input (Max): 5.5V

Voltage - Output (Min/Fixed): 1.8V

Current - Output: 350mA

Frequency - Switching: 1MHz

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Overcurrent protection

Thermal shutdown feature ensures device safety under abnormal conditions

Compatibility

Suited for applications requiring a step-down voltage regulator within the specified input/output range

Application Areas

Portable electronics, handheld devices, battery-powered systems

Product Lifecycle

Obsolete status indicates discontinuation with possible replacements or upgrades to be considered

Key Reasons to Choose This Product

Texas Instruments' reputation for quality and reliability

High-efficiency conversion suitable for extending battery life of portable devices

Synchronous rectification provides better efficiency compared to asynchronous

High switching frequency minimizes the size of the external inductor and capacitors required

Operating temperature range suitable for diverse environments

Support for overcurrent and thermal protection adds reliability in design