LM3679
FEATURES
- 2 16 µA Typical Quiescent Current
- 350 m A 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 µA Typical Shutdown Current
- Operates from a Single Li-Ion Cell Battery
- Current Overload and Thermal Shutdown
Protection
- Three External ponents Required for
Typical Applications
- Low Profile Solution (0.55mm Max Height,
Includes Four External ponents)
APPLICATIONS
- Mobile Phones
- PDAs
- MP3 Players
- W-LAN
- Portable Instruments
- Digital Still Cameras
- Portable Hard Disk Drives
DESCRIPTION
The LM3679 step-down DC-DC converter is optimized for powering ultra-low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.5V to 5.5V. It provides up to 350m A load current, over the entire input voltage range. The LM3679 output voltage can be configured to 1.2V,...
