Datasheet LT3695 (Analog Devices) - 5

LT3695 Series
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Effi ciency (VOUT = 5V, SYNC = 0V) Effi ciency (VOUT = 3.3V, SYNC = 0V) Effi ciency (VOUT = 3.3V, SYNC = 0V)
90 90 100 1 L = 10μH L = 10μH VIN = 12V 80 f = 800kHz 80 f = 800kHz 90 VOUT = 3.3V V L = 10μH IN = 12V VIN = 12V 80 70 70 f = 800kHz V POWER LOSS(W) IN = 34V VIN = 34V 70 0.1 60 60 60 50 50 V V IN = 24V IN = 24V 50 EFFICIENCY (%) 40 EFFICIENCY (%) 40 EFFICIENCY (%) 40 0.01 30 30 30 20 20 20 10 10 10 0.001 0.1 1 10 100 1000 0.1 1 10 100 1000 0.1 1 10 100 1000 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 3695 G01 3695 G02 3695 G03
No-Load Supply Current No-Load Supply Current Maximum Load Current
140 1300 1.75 V CATCH DIODE: DIODES, INC. B140 OUT = 3.3V 1200 TYPICAL VIN = 12V 120 1100 V 1.50 OUT = 3.3V 1000 100 900 1.25 800 80 700 1.00 600 Y CURRENT (μA) 60 Y CURRENT (μA) INCREASED SUPPLY CURRENT 500 DUE TO CATCH DIODE LEAKAGE 0.75 400 LOAD CURRENT (A) MINIMUM SUPPL 40 SUPPL AT HIGH TEMPERATURE 300 0.50 V 200 OUT = 3.3V 20 SYNC = 0V L = 10μH 100 SYNC = 3.3V f = 800kHz 0 0 0.25 0 5 10 15 20 25 30 35 40 –50 –25 0 25 50 75 100 125 150 0 5 10 15 20 25 30 35 40 INPUT VOLTAGE (V) TEMPERATURE (°C) INPUT VOLTAGE (V) 3695 G04 3695 G05 3695 G06
Maximum Load Current Maximum Load Current Maximum Load Current
1.50 1.50 1.75 TYPICAL TYPICAL 1.50 TYPICAL 1.25 1.25 1.25 1.00 1.00 1.00 0.75 0.75 MINIMUM 0.75 LOAD CURRENT (A) MINIMUM LOAD CURRENT (A) LOAD CURRENT (A) MINIMUM 0.50 0.50 VOUT = 5V V V OUT = 5V 0.50 OUT = 1.8V SYNC = 0V L = 10μH SYNC = 0V L = 4.7μH SYNC = 0V L = 10μH SYNC = 5V f = 800kHz SYNC = 5V f = 2MHz SYNC = 3.3V f = 500kHz 0.25 0.25 0.25 5 10 15 20 25 30 35 40 8 10 12 14 16 18 20 0 5 10 15 20 25 30 35 40 INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3682 G07 3695 G08 3695 G09 3695fa 5