ADP1606 Datasheet

• Up to 96% efficiency
• 0.8 V to V_OUT input voltage range
• Low 0.9 V input start-up voltage
• 1.8 V fixed output voltage
• 23 μA quiescent current
• Synchronous rectification
• Fixed pulse-width modulation (PWM) and light load pulse frequency modulation (PFM) mode options
• True shutdown output isolation
• Internal soft start, compensation, and current limit
• 2 mm × 2 mm, 6-lead LFCSP
• Compact solution size

• 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

The ADP1606 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 of small footprint, low profile external components. Additionally, the synchronous rectification, internal compensation, internal fixed current limit, and current mode architecture allow excellent transient response and a minimal external part count.

Other key features include fixed PWM and light load PFM mode options, true output isolation, thermal shutdown (TSD), and logic controlled enable. Available in a lead-free, thin, 6-lead LFCSP package, the ADP1606 are ideal for providing efficient power conversion in portable devices.