ADP1606

Data Sheet FEATURES Up to 96% efficiency 0.8 V to VOUT input voltage range Low 0.9 V input start-up voltage 1.8 V fixed output voltage (ADP1606) 1.8 V to 3.3 V adjustable output voltage range (ADP1607) 23 µA quiescent current Fixed pulse-width modulation (PWM) and light load pulse frequency modulation (PFM) mode options Synchronous rectification True shutdown output isolation Internal soft start, compensation, and current limit 2 mm × 2 mm, 6-lead LFCSP Compact solution size APPLICATIONS 1-cell and 2-cell alkaline and NiMH/NiCd powered devices Portable audio players, instruments, and medical devices Solar cell applications Miniature hard disk power supplies Power LED status indicators GENERAL DESCRIPTION The ADP1606/ADP1607 are high efficiency, synchronous, fixed frequency, step-up dc-to-dc switching converters with a 1.8 V fixed output voltage option and a 1.8 V to 3.3 V adjustable output voltage option for use in portable applications. The 2 MHz operating frequency enables the use ...