Datasheet LTC3604 (Analog Devices) - 5

LTC3604
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 12V, fO = 1MHz, L = 1.5µH unless otherwise noted. Quiescent Current vs RDS(ON) vs Temperature Switch Leakage vs Temperature Supply Voltage
200 6000 380 VDS = 12V 160 5000 TOP SWITCH 340 RDS(ON) 4000 120 (mΩ) BOTTOM SWITCH 3000 300 R 80 DS(ON) R DS(ON) 2000 SWITCH LEAKAGE (nA) TOP SWITCH 40 QUIESCENT CURRENT (µA) 260 1000 BOTTOM SWITCH 0 0 220 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 4 6 8 10 12 14 16 TEMPERATURE (°C) TEMPERATURE (°C) SUPPLY VOLTAGE (V) 3604 G07 3604 G08 3604 G09
Oscillator Frequency vs Oscillator Internal Set Frequency TRACK Pull-Up Current Temperature vs Temperature vs Temperature
2.0 2.75 2.0 RT = INTVCC 1.5 2.50 1.8 1.0 1.6 2.25 0.5 1.4 (µA) 0 2.00 1.2 –0.5 I TRACK FREQUENCY (MHz) 1.75 –1.0 1.0 FREQUENCY VARIATION (%) 1.50 –1.5 0.8 –2.0 1.25 0.6 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3604 G10 3604 G11 3604 G12
Bottom Switch Valley Current Limit vs Temperature Load Regulation
5 1.4 Burst Mode OPERATION 1.2 FORCED CONTINUOUS 4 1.0 3 (%) 0.8 (A) OUT/V 0.6 I LIM 2 0.4 ∆V OUT 0.2 1 0 0 –0.2 –50 –25 0 25 50 75 100 125 150 0 0.5 1 1.5 2 2.5 TEMPERATURE (°C) LOAD CURRENT (A) 3604 G13 3604 G14 3604fa For more information www.linear.com/LTC3604 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Operation Applications Information Typical Applications Package Description Revision History Related Parts