Datasheet LT3045-1 (Analog Devices) - 9
| 制造商 | Analog Devices |
| 描述 | 20V, 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator with VIOC Control |
| 页数 / 页 | 36 / 9 — TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 3.3 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, unless otherwise noted. Internal Current Limit. Programmable Current Limit
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LT3045-1
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, unless otherwise noted. Internal Current Limit Programmable Current Limit Programmable Current Limit
1000 1000 200 RILIM = 0Ω 900 RILIM = 300Ω 900 RILIM = 1.5k V 180 OUT = 0V VOUT = 0V 800 800 160 700 700 140 600 600 120 VIN = 2.5V 500 500 100 V 400 400 IN = 12V 80 300 CURRENT LIMIT (mA) 300 CURRENT LIMIT (mA) 60 CURRENT LIMIT (mA) 150°C 200 125°C 200 40 25°C 100 VIN = 2.5V 100 20 –55°C VIN = 12V 0 0 0 0 2 4 6 8 10 12 14 16 18 20 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 INPUT-TO-OUTPUT DIFFERENTIAL (V) TEMPERATURE (°C) TEMPERATURE (°C) 30451 G28 30451 G29 30451 G30
ILIM Pin Current PGFB Rising Threshold PGFB Hysteresis
1000 310 8 VILIM = 0V V 900 V IN = 2V R IN = 2V SET = 13k 308 7 800 306 6 700 304 600 302 5 500 300 4 400 298 3 300 296 ILIM PIN CURRENT (uA) PGFB HYSTERESIS (mV) 2 200 2.5VIN 294 PGFB RISING THRESHOLD (mV) 5VIN 100 1 10V 292 IN 0 290 0 0 50 100 150 200 250 300 350 400 450 500 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 OUTPUT CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 30451 G31 30451 G32 30451 G33
ISET During Start-Up with Fast PG Output Low Voltage PG Pin Leakage Current Start-Up Enabled
50 100 3.0 VIN = 2V V V 45 PG = 2V 90 IN = 2.5V VPGFB = 290mV VPGFB = 310mV VPGFB = 290mV 2.5 40 IPG = 100µA 80 VSET = 1.3V 35 70 2.0 30 60 (mV) 25 (nA) 50 (mA) 1.5 V PG I PG 20 40 I SET 1.0 15 30 10 20 0.5 5 10 0 0 0 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 30451 G34 30451 G35 30451 G36 30451fa For more information www.linear.com/LT3045-1 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, unless otherwise noted. Internal Current Limit Programmable Current Limit Programmable Current Limit
1000 1000 200 RILIM = 0Ω 900 RILIM = 300Ω 900 RILIM = 1.5k V 180 OUT = 0V VOUT = 0V 800 800 160 700 700 140 600 600 120 VIN = 2.5V 500 500 100 V 400 400 IN = 12V 80 300 CURRENT LIMIT (mA) 300 CURRENT LIMIT (mA) 60 CURRENT LIMIT (mA) 150°C 200 125°C 200 40 25°C 100 VIN = 2.5V 100 20 –55°C VIN = 12V 0 0 0 0 2 4 6 8 10 12 14 16 18 20 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 INPUT-TO-OUTPUT DIFFERENTIAL (V) TEMPERATURE (°C) TEMPERATURE (°C) 30451 G28 30451 G29 30451 G30
ILIM Pin Current PGFB Rising Threshold PGFB Hysteresis
1000 310 8 VILIM = 0V V 900 V IN = 2V R IN = 2V SET = 13k 308 7 800 306 6 700 304 600 302 5 500 300 4 400 298 3 300 296 ILIM PIN CURRENT (uA) PGFB HYSTERESIS (mV) 2 200 2.5VIN 294 PGFB RISING THRESHOLD (mV) 5VIN 100 1 10V 292 IN 0 290 0 0 50 100 150 200 250 300 350 400 450 500 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 OUTPUT CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 30451 G31 30451 G32 30451 G33
ISET During Start-Up with Fast PG Output Low Voltage PG Pin Leakage Current Start-Up Enabled
50 100 3.0 VIN = 2V V V 45 PG = 2V 90 IN = 2.5V VPGFB = 290mV VPGFB = 310mV VPGFB = 290mV 2.5 40 IPG = 100µA 80 VSET = 1.3V 35 70 2.0 30 60 (mV) 25 (nA) 50 (mA) 1.5 V PG I PG 20 40 I SET 1.0 15 30 10 20 0.5 5 10 0 0 0 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 30451 G34 30451 G35 30451 G36 30451fa For more information www.linear.com/LT3045-1 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts