Datasheet LTC3777 (Analog Devices) - 10

LTC3777
TYPICAL PERFORMANCE CHARACTERISTICS Oscillator Frequency Frequency Setting Current VIN LDO vs Temperature vs Temperature vs Temperature
12 800 20.5 FREQ = V5 VFREQ = 0.8V 20.4 11 700 20.3 600 10 DRVSET = V5, VIN = 11V 20.2 500 RFREQ = 120k 9 DRVSET = 3/4 • V5, V 20.1 IN = 10V 400 (µA) 20.0 VCC (V) 8 DRVSET = 1/2 • V5, V DR IN = 9V 300 I FREQ R 19.9 FREQ = 67.5k 7 DRVSET = 1/4 • V5, VIN = 8V 19.8 200 SWITCHING FREQUENCY (kHz) 19.7 6 DRVSET = GND, VIN = 7V RFREQ = 27.5k FREQ = GND 100 19.6 5 0 19.5 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3777 G36 3777 G37 3777 G38
Input Supply Current Soft-Start Pull-Up Current vs Temperature RUN Threshold vs Temperature vs Temperature
5 1.4 5.2 ON OFF 4 1.3 5.1 3 1.2 Y CURRENT (mA) 2 1.1 5.0 SUPPL RUN THRESHOLD (V) 1 1.0 SS PULL–UP CURRENT (µA) 0 0.9 4.9 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3777 G39 3777 G40 3777 G41 Rev A 10 For more information www.analog.com Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS – SWITCHING BIAS SUPPLY PIN FUNCTIONS BLOCK DIAGRAM OPERATION APPLICATIONS INFORMATION PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS