Texas Instruments LM3671
The LM3671 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7 V to 5.5 V. It provides up to 600-mA load current, over the entire input voltage range. The device offers superior features and performance for mobile phones and similar portable systems.FEATURES
●1 LM3671-Q1 is Qualified for AutomotiveAPPLICATIONS
● AEC Q100-Qualified With the Following Results – Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range● 16-µA Typical Quiescent Current
● 600-mA Maximum Load Capability
● 2-MHz PWM Fixed Switching Frequency (Typical)
● Automatic PFM-PWM Mode Switching
● Internal Synchronous Rectification for High Efficiency
● Internal Soft Start
● 0.01-µA Typical Shutdown Current
● Operates from a Single Li-Ion Cell Battery
● Only Three Tiny Surface-Mount External Components Required (One Inductor, Two Ceramic Capacitors)
● Current Overload and Thermal Shutdown Protection
● Available in Fixed Output Voltages and Adjustable Version 2
APPLICATIONS
● Mobile Phones● PDAs
● MP3 Players
● W-LAN
● Portable Instruments
● Digital Still Cameras
● Portable Hard Disk Drives
● Automotive
● Portable Medical Equipment
● Handheld Transaction Terminals
● Wireless Home-Automation Equipment 3
DESCRIPTION
There are several different fixed voltage output options available as well as an adjustable output voltage version range from 1.1 V to 3.3 V.