L6920 Overview
The L6920 is a high efficiency step-up controller requiring only three external ponents 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 120mΩ P-channel MOSFET and, in order to improve the efficiency, a variable frequency control is implemented.
L6920 Key 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
- 120mΩ INTERNAL ACTIVE SWITCH
- LOW BATTERY VOLTAGE DETECTION
- REVERSE BATTERY PROTECTION
L6920 Applications
- ONE TO THREE CELL BATTERY DEVICES