Adjustable, Low-Current, 2-Cell Boost Regulator With Shutdown And Low Battery Detect

The FAN4855 is a low power boost Regulator designed for low voltage DC to DC conversion in 2-cell battery powered systems such as digital cameras, cell phones and PDAs. The converter starts-up at 1.3V and operates after the start at an input voltage as low as 1V. Output voltage CAN be adjusted by external resistors from 3.3V to 5V with a maximum load current of 0.5A. Quiescent current in Shut Down Mode is less than 10A, which maximizes the battery live time. The ON time changes with the input voltage to maintain the ripple current constant and to provide the highest efficiency over a wide load range - while maintaining low peak currents in the boost inductor. The combination of built-in Power Transistors synchronous rectification, and low supply current, make FAN4855 ideal for portable applications. The FAN4855 is available in 8 lead MSOP and TSSOP packages.
By Fairchild Semiconductor
Part Manufacturer Description Datasheet Samples
FAN4855MTC Rochester Electronics LLC 0.5 A SWITCHING REGULATOR, PDSO8, TSSOP-8
FAN4855MTCX Rochester Electronics LLC 0.5 A SWITCHING REGULATOR, PDSO8, TSSOP-8
FAN4855MU Rochester Electronics LLC 500mA High Efficiency Boost Regulator with Adj Output; Shutdown and Low Battery Detect
FAN4855MUX Rochester Electronics LLC 500mA High Efficiency Boost Regulator with Adj Output; Shutdown and Low Battery Detect
FAN4855MTCX_NL Rochester Electronics LLC 500mA High Efficiency Boost Regulator with Adj Output; Shutdown and Low Battery Detect
FAN4855 's PackagesFAN4855 's pdf datasheet
FAN4855MTC TSSOP
FAN4855MTCX TSSOP




FAN4855 Pinout, Pinouts
FAN4855 pinout,Pin out
This is one package pinout of FAN4855,If you need more pinouts please download FAN4855's pdf datasheet.

FAN4855 Application circuits
FAN4855 circuits
This is one application circuit of FAN4855,If you need more circuits,please download FAN4855's pdf datasheet.


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