Datasheet LTC3621, LTC3621-2 (Analog Devices) - 6

LTC3621/LTC3621-2
Typical perForMance characTerisTics TJ = 25°C, unless otherwise noted. Oscillator Frequency Reference Voltage Efficiency vs Load at 1MHz vs Supply Voltage vs Temperature
100 2.50 600.5 90 2.45 80 2.40 600.0 70 2.35 599.5 60 2.30 50 2.25 599.0 40 2.20 EFFICIENCY (%) 30 2.15 598.5 REFERENCE VOLTAGE 20 V OSCILLATOR FREQUENCY (MHz) 2.10 598.0 OUT = 2.5V 10 VOUT = 3.3V 2.05 VIN = 12V VOUT = 5V 0 2.00 597.5 0.0001 0.001 0.01 0.1 1 2 7 12 17 –100 –50 0 50 100 150 LOAD CURRENT (A) SUPPLY VOLTAGE (V) TEMPERATURE (°C) 3621 G16 3621 G10 3521 G11
RDS(ON) vs Input Voltage RDS(ON) vs Temperature Load Regulation
700 600 5 VIN = 12V 550 4 VOUT = 3.3V 600 FORCED CONTINUOUS MODE 500 3 TOP FET 500 450 2 400 1 (mΩ) (%) 400 TOP FET (mΩ) 350 0 OUT R DS(ON) 300 ∆V –1 300 R DS(ON) 250 –2 BOTTOM FET 200 200 –3 BOTTOM FET 150 –4 100 100 –5 0 2 4 6 8 10 12 14 16 18 20 –50 –25 0 25 50 75 100 125 150 0 500 1000 1500 INPUT VOLTAGE (V) TEMPERATURE (°C) LOAD CURRENT (mA) 3621 G14 3621 G12 3621 G13
VIN Supply Current Switch Leakage Line Regulation vs Temperature vs Temperature
0.5 6 30 27 0.3 5 24 21 4 0.1 18 SLEEP 15 3 ERROR (%) 12 OUT –0.1 9 ∆V SUPPLY CURRENT (µA) 2 SW LEAKAGE (µA) BOTTOM FET 6 –0.3 V IN 1 3 SHUTDOWN 0 TOP FET –0.5 0 –3 0 1 2 3 4 5 6 7 8 9 1011121314151617 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 INPUT VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 3621 G15 3521 G17 3621 G18 3621fc 6 For more information www.linear.com/LTC3621 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts