Datasheet LTC7150S, LTC7150S-4 (Analog Devices) - 6

LTC7150S/LTC7150S-4
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 12V, VOUT = 1.2V, unless otherwise noted. SVIN Current vs Frequency, CCM Switching Frequency vs RT Efficiency vs Frequency
125 3.5 100 L = 0.25µH 3.0 95 100 2.5 90 IOUT = 10A 75 2.0 (mA) 85 IOUT = 20A I SVIN 1.5 50 EFFICIENCY (%) 80 1.0 25 SWITCHING FREQUENCY (MHz) 75 SV 0.5 IN = 5V FC MODE 0 0 70 0.4 0.9 1.5 2.0 2.5 0 50 100 150 200 250 300 350 400 0.4 0.9 1.4 2.0 2.5 3 FREQUENCY (MHz) RT (kΩ) FREQUENCY (MHz) 7150S G10 7150S G11 7150S G12
Efficiency vs PVIN Die Temperature vs Load Switching Frequency vs VOUT
100 100 1.4 SVIN = 5V PVIN = 12V R f T = 162kΩ SW = 1MHz SVIN = 5V 95 L = 0.25µH V 85 OUT = 1.2V 1.3 fSW = 1MHz °C) 90 70 1.2 TURE ( 85 55 1.1 EFFICIENCY (%) 80 FREQUENCY (MHz) DIE TEMPERA 40 1.0 75 I DEMOBOARD ON OUT = 10A I STILL AIR, T OUT = 20A A = 25°C 70 25 0.9 4 8 12 16 20 0 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 PVIN (V) IOUT (A) VOUT (V) 7150S G13 7150S G14 7150S G15
Regulated FB Voltage RUN Rising Threshold vs Temperature vs Temperature Frequency vs Temperature
605 1.220 1.100 RT = 162kΩ 1.215 603 1.050 1.210 TAGE (mV) 601 1.205 1.000 599 TED FB VOL 1.200 FREQUENCY (MHz) 0.950 REGULA 597 RUN RISING THRESHOLD (V) 1.195 595 1.190 0.900 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 7150S G16 7150S G17 7150S G18 Rev. B 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Typical Applications Package Photo Revision History Typical Application Related Parts