Datasheet LTC3769 (Analog Devices) - 6

LTC3769
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. Regulated Feedback Voltage Soft-Start Pull-Up Current vs Temperature vs Temperature Shutdown Current vs Temperature
1.212 11.0 6.0 VIN = 12V 5.5 1.209 5.0 1.206 10.5 4.5 1.203 4.0 1.200 10.0 3.5 3.0 1.197 2.5 1.194 SOFT-START CURRENT (µA) 9.5 SHUTDOWN CURRENT (µA) 2.0 REGULATED FEEDBACK VOLTAGE (V) 1.191 1.5 1.188 9.0 1.0 –60 –35 –10 15 40 65 90 115 140 –60 –35 –10 15 40 65 90 115 140 –60 –35 –10 15 40 65 90 115 140 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3769 G09 3769 G10 3769 G11
Shutdown (RUN) Threshold Quiescent Current vs Temperature vs Temperature Shutdown Current vs Input Voltage
12.5 50 1.40 VIN = 12V VIN = 12V 45 VFB = 1.25V RUN = GND 1.35 10.0 40 1.30 RUN RISING 7.5 35 30 1.25 5.0 25 1.20 RUN PIN VOLTAGE (V) RUN FALLING SHUTDOWN CURRENT (µA) 20 2.5 QUIESCENT CURRENT (µA) 1.15 15 0 10 1.10 5 10 15 20 25 30 35 40 45 50 55 60 65 –60 –35 –10 15 40 65 90 115 140 –60 –35 –10 15 40 65 90 115 140 INPUT VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 3769 G12 3769 G13 3769 G14
Undervoltage Lockout Threshold vs Temperature INTVCC Line Regulation
4.4 5.5 4.3 5.4 4.2 INTVCC RISING 5.3 4.1 5.2 4.0 5.1 3.9 5.0 VOLTAGE (V) INTVCC FALLING VOLTAGE (V) CC 3.8 CC 4.9 INTV 3.7 INTV 4.8 3.6 4.7 3.5 4.6 3.4 4.5 –60 –35 –10 15 40 65 90 115 140 0 5 10 15 20 25 30 35 40 45 50 55 60 65 TEMPERATURE (°C) 3769 G15 INPUT VOLTAGE (V) 3769 G16 3769fa 6 For more information www.linear.com/LTC3769 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 Typical Applications Revision History Typical Application Related Parts