Datasheet Texas Instruments LM3679URX-1.8/NOPB — Ficha de datos

LM3679
www.ti.com SNVS510A – SEPTEMBER 2007 – REVISED FEBRUARY 2008 LM3679 3MHz, 350mA Miniature Step-Down DC-DC Converter for Ultra Low Profile
Applications (Height < 0.55mm)
Check for Samples: LM3679 FEATURES APPLICATIONS 1 2 16 ВµA Typical Quiescent Current
350 mA Maximum Load Capability
3 MHz PWM Fixed Switching Frequency (typ)
Automatic PFM/PWM Mode Switching
Available in 5-Bump DSBGA YZR Package and
YPD Package
Internal Synchronous Rectification for High
Efficiency
Internal Soft Start
0.01 ВµA Typical Shutdown Current
Operates from a Single Li-Ion Cell Battery
Current Overload and Thermal Shutdown
Protection
Three External Components Required for
Typical Applications
Low Profile Solution (0.55mm Max Height,
Includes Four External Components) Mobile Phones
PDAs
MP3 Players
W-LAN …