MaxLinear SP7648

Beschreibung

The SP7648 is an ultra-low quiescent current,high efficiency step-up DC-DC converter idealfor single cell Li-Ion or dual cell alkalinebattery applications to drive various LEDs. TheSP7648 combines low quiescent current andexcellent light-load efficiency of PFM control.The SP7648 features synchronous rectification,a 0.3 charging switch, an anti-ringinginductor switch, under-voltage lockout andprogrammable inductor peak current. Thedevice can be shut down by a 1nA active LOWshutdown pin. A very low 0.288V referencevoltage is optimized for driving a constantcurrent load.

Eigenschaften

• True Shutdown
• 700mA Output Current at 3.3V Input; 4.2V output
• 92% Efficiency from 2.7VIN to 3.3VOUT
• 2.7V to 4.5V Wide Input Voltage Range
• 5V Fixed or Adjustable Output0.3ohm Switch
• Integrated Synchronous Rectifier:0.3
• Anti-Ringing Switch Technology
• Programmable Inductor Peak Current
• Logic Shutdown Control
• Low 0.8V or 0.288V Reference Voltage
• Small 10-pin DFN and MSOP Package

Typische Anwendungen

• LED Driver
• Handheld Portable Devices
• Camera Flash

Weiterführende Informationen

• Produktseite des IC-Herstellers