LM3671 - Texas Instruments

LM3671 600-mA Step-Down DC-DC Converter

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. There are several different fixed voltage output options available as well as an adjustable output voltage version range .

Features

•1 LM3671-Q1 is Qualified for Automotive Applications
• 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)
• Curre.