L6928D HIGH EFFICIENCY MONOLITHIC SYCHRONOUS STEP DOWN REGULATOR L6928D HIGH EFFICIENCY
MONOLITHIC SYCHRONOUS STEP
DOWN REGULATOR
Stanley Xing
stanley.xing@st.com
1
L6928 Step Down Regulator
MAIN FEATURES
2V to 5.5V BATTERY INPUT RANGE
HIGH EFFICIENCY: UP TO 95%
INTERNAL SYNCHRONOUS SWITCH
NO EXTERNAL SCHOTTKY REQUIRED
EXTERMELY LOW QUIESCENT CURRENT
1UA MAX SHUTDOWN SUPPLY CURRENT
800mA MAX OUTPUT CURRENT
ADJUSTABLE OUTPUT VOLTAGE FROM 0.6V
LOW DROPOUT OPERATION: UP TO 100% DUTY CYCLE
SELECTABLE LOW NOISE OR LOW CONSUMPTION MODE AT LIGHT
LOAD.
POWER GOOD SIGNAL
1% OUTPUT VOLTAGE ACCURACY AND OVP FUNCTION
CURRENT-MODE CONTROL
1.4MHZ SWITCHING FREQUENCY
EXTERNALLY SYNCHRONIZABLE FROM 1MHZ TO 2MHZ
TARGET APPLICATIONS
BATTERY-POWERED EQUIPMENTS
PORTABLE INSTRUMENTS
CELLU……
