LM3671LC-1.3 - Texas Instruments

Manufacturer Part Number

LM3671LC-1.3

Manufacturer

Texas Instruments

Introduction

The LM3671LC-1.3 is a step-down DC-DC switching regulator designed for powering low-voltage circuits from a single Li-Ion cell or a 3-cell NiMH/NiCd battery. It offers efficient power conversion with minimal external components.

Product Features and Performance

High efficiency due to synchronous rectification

Fixed 1.3V output with accurate regulation

Supports input voltages from 2.7V to 5.5V

Capable of delivering 600mA of output current

2MHz fixed switching frequency enables small inductor sizes

Low-noise operation

Integrated protection features including over-temperature and over-current protection

Product Advantages

Compact 6-UFDFN / 6-USON (2x2) package for space-constrained applications

High 2MHz switching frequency allows for small external components

High efficiency reduces heat and extends battery life

Synchronous rectification enhances efficiency

Key Technical Parameters

Voltage Input (Min): 2.7V

Voltage Input (Max): 5.5V

Voltage Output (Min/Fixed): 1.3V

Current Output: 600mA

Frequency Switching: 2MHz

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Over-temperature protection

Over-current protection

Built-in soft start function

Compatibility

Suitable for low-voltage power supply applications in portable devices

Compatible with single Li-Ion cells or 3-cell NiMH/NiCd batteries

Application Areas

Mobile phones

Personal digital assistants (PDAs)

Portable media players

Wireless peripherals

Product Lifecycle

Obsolete status indicates it is nearing discontinuation, replacements or upgrades should be sought for new designs

Several Key Reasons to Choose This Product

Texas Instruments' reputation for quality and reliability

High efficiency for increased battery life in portable applications

Compact package suitable for space-constrained applications

Integrated protections assure safe operation under abnormal conditions

Ability to operate with minimal external components reduces overall design complexity