L6920DTR Datasheet PDF - ST Microelectronics

●Description

●The L6920 is a high efficiency step-up controller requiring only three external components to realize the conversion from the battery voltage to the selected output voltage.

●The start up is guaranteed at 1V and the device is operating down to 0.6V. Internal synchronous rectifier is implemented with a 120mΩP-channel MOSFET and, in order to improve the efficiency, a variable frequency control is implemented.

●Features

●■0.6 TO 5.5V OPERATING INPUT VOLTAGE

●■1V START UP INPUT VOLTAGE

●■INTERNAL SYNCHRONOUS RECTIFIER

●■ZERO SHUT DOWN CURRENT

●■3.3V AND 5V FIXED OR ADJUSTABLE OUTPUT VOLTAGE (2V UP TO 5.2V)

●■120mΩINTERNAL ACTIVE SWITCH

●■LOW BATTERY VOLTAGE DETECTION

●■REVERSE BATTERY PROTECTION

●Applications

●■ONE TO THREE CELL BATTERY DEVICES

●■PDA AND HAND HELD INSTRUMENTS

●■CELLULAR PHONES - DIGITAL CORDLESS PHONE

●■PAGERS

●■GPS

●■DIGITAL CAMERAS