L6920D
32 Stck in Stange / 1,50 € Stck = 45,- € Gesamt
1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER
1 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)
■ 120mΩ INTERNAL ACTIVE SWITCH
■ LOW BATTERY VOLTAGE DETECTION
■ REVERSE BATTERY PROTECTION
1.1 Applications
■ ONE TO THREE CELL BATTERY DEVICES
■ PDA AND HAND HELD INSTRUMENTS
■ CELLULAR PHONES – DIGITAL CORDLESS
PHONE
■ PAGERS
■ GPS
■ DIGITAL CAMERAS
2 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
120mΩ P-channel MOSFET and, in order to improve
the efficiency, a variable frequency control is implemented