LM3677 Datasheet | Texas Instruments

FEATURES - 2 16 µA typical quiescent current - 600 m A maximum load capability - 3 MHz PWM fixed switching frequency (typ.) - Automatic PFM/PWM mode switching - Available in 5-bump DSBGA package and 6-pin USON package - 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 ponents required (solution size less than 20 mm2) - Current overload and thermal shutdown protection APPLICATIONS - Mobile Phones - PDAs - MP3 Players - W-LAN - Portable Instruments - Digital Still Cameras - Portable Hard Disk Drives DESCRIPTION The LM3677 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 2.7V to 5.5V. It provides up to 600 m A load current over the entire input voltage range. The LM3677 is configured to different fixed voltage output options as well as an adjustable output voltage version range from 1.2V to 3.3V. TYPICAL APPLICATION CIRCUITS VIN 2.7V to 5.5V CIN 4.7 PF VIN 1 GND 2 L1: 1.0 PH SW EN 3 FB 4 VOUT COUT 10 PF Figure 1. Typical Application Circuit VIN 2.7V to 5.5V CIN 4.7 PF VIN...