Datasheet LT3755, LT3755-1, LT3755-2 (Analog Devices) - 6

LT3755/LT3755-1/LT3755-2
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. V(ISP – ISN) Threshold V(ISP – ISN) Threshold vs VCTRL V(ISP – ISN) Threshold vs VISP vs Temperature
120 103 103 VCTRL = 2V VCTRL = 2V 100 102 102 80 101 101 60 100 100 THRESHOLD (mV) 40 THRESHOLD (mV) THRESHOLD (mV) 99 99 20 V (ISP – ISN) V (ISP – ISN) V (ISP – ISN) 0 98 98 –20 97 97 0 0.5 1 1.5 2 0 20 40 60 80 –50 –25 0 25 50 75 100 125 150 VCTRL (V) ISP VOLTAGE (V) TEMPERATURE (°C) 37551 G01 37551 G02 37551 G03
FB Regulation Voltage vs Temperature VREF Voltage vs Temperature VREF Voltage vs VIN
1.28 2.04 2.04 1.27 2.03 2.03 1.26 2.02 2.02 1.25 2.01 2.01 (V) 1.24 (V) 2.00 (V) 2.00 V FB V REF V REF 1.23 1.99 1.99 1.22 1.98 1.98 1.21 1.97 1.97 1.20 1.96 1.96 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 0 10 20 30 40 TEMPERATURE (°C) TEMPERATURE (°C) VIN (V) 37551 G04 37551 G05 37551 G06
Switching Frequency SHDN/UVLO Hysteresis Current Switching Frequency vs RT vs Temperature vs Temperature
10000 500 2.4 RT = 26.7k 450 2.2 1000 (µA) 400 2.0 /UVLO 100 I SHDN 350 1.8 SWITCHING FREQUENCY (kHz) SWITCHING FREQUENCY (kHz) 10 300 1.6 10 100 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 RT (k) TEMPERATURE (°C) TEMPERATURE (°C) 37551 G07 37551 G08 37551 G09 Rev. E 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts