Datasheet LT3150 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | Fast Transient Response, Low Input Voltage, Very Low Dropout Linear Regulator Controller |
| Pages / Page | 20 / 5 — TYPICAL PERFOR A CE CHARACTERISTICS Linear Regulator Controller. FB2 Line … |
| File Format / Size | PDF / 265 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHARACTERISTICS Linear Regulator Controller. FB2 Line Regulation. Error Amplifier Large-Signal
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LT3150
W U TYPICAL PERFOR A CE CHARACTERISTICS Linear Regulator Controller FB2 Line Regulation Error Amplifier Large-Signal vs Temperature Voltage Gain vs Temperature Gain and Phase vs Frequency
0.030 120 200 115 0.025 V) 110 150 105 0.020 PHASE 100 0.015 95 100 90 GAIN 0.010 85 50 FB2 LINE REGULATION (%/ 80 0.005 LARGE-SIGNAL VOLTAGE GAIN (dB) 75 0 70 ERROR AMPLIFIER GAIN (dB) AND PHASE (DEG) 0 –75 – 50 –25 0 25 50 75 100 125 150 175 –75 – 50 –25 0 25 50 75 100 125 150 175 1k 10k 100k 1M 10M 100M TEMPERATURE (°C) TEMPERATURE (°C) FREQUENCY (Hz) 3150 G11 3150 G09 3150 G10
Gate Output Swing Low Gate Output Swing High (VIN2 – IPOS + INEG Supply Current vs Temperature VGATE) vs Temperature vs Temperature
3.00 3.0 1000 ILOAD = 50mA 2.75 2.5 µA) 900 2.50 800 I NO LOAD POS = INEG = 5V 2.0 I 2.25 POS = INEG = 12V I I POS = INEG = 20V LOAD = 50mA 700 2.00 1.5 600 I 1.75 POS = INEG = 3V SUPPLY CURRENT ( 1.0 NEG 500 1.50 NO LOAD + I GATE OUTPUT SWING LOW (V) GATE OUTPUT SWING HIGH (V) 0.5 1.25 I POS 400 1.00 0 300 –75 – 50 –25 0 25 50 75 100 125 150 175 –75 – 50 –25 0 25 50 75 100 125 150 175 –75 – 50 –25 0 25 50 75 100 125 150 175 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3150 G12 3150 G13 3150 G14
Current Limit Threshold Voltage Current Limit Threshold Voltage SHDN2 Sink Current vs Temperature Line Regulation vs Temperature vs Temperature
65 0 7.5 7.0 60 – 0.1 6.5 µA) 6.0 55 IPOS = 5V IPOS = 3V – 0.2 5.5 50 5.0 IPOS = 20V – 0.3 4.5 45 4.0 SHDN2 SINK CURRENT ( 40 CURRENT LIMIT THRESHOLD – 0.4 3.5 VOLTAGE LINE REGULATION (%/V) 3.0 CURRENT LIMIT THRESHOLD VOLTAGE (mV) 35 – 0.5 2.5 –75 – 50 –25 0 25 50 75 100 125 150 175 –75 – 50 –25 0 25 50 75 100 125 150 175 –75 – 50 –25 0 25 50 75 100 125 150 175 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3150 G15 3150 G16 3150 G17 3150f 5
W U TYPICAL PERFOR A CE CHARACTERISTICS Linear Regulator Controller FB2 Line Regulation Error Amplifier Large-Signal vs Temperature Voltage Gain vs Temperature Gain and Phase vs Frequency
0.030 120 200 115 0.025 V) 110 150 105 0.020 PHASE 100 0.015 95 100 90 GAIN 0.010 85 50 FB2 LINE REGULATION (%/ 80 0.005 LARGE-SIGNAL VOLTAGE GAIN (dB) 75 0 70 ERROR AMPLIFIER GAIN (dB) AND PHASE (DEG) 0 –75 – 50 –25 0 25 50 75 100 125 150 175 –75 – 50 –25 0 25 50 75 100 125 150 175 1k 10k 100k 1M 10M 100M TEMPERATURE (°C) TEMPERATURE (°C) FREQUENCY (Hz) 3150 G11 3150 G09 3150 G10
Gate Output Swing Low Gate Output Swing High (VIN2 – IPOS + INEG Supply Current vs Temperature VGATE) vs Temperature vs Temperature
3.00 3.0 1000 ILOAD = 50mA 2.75 2.5 µA) 900 2.50 800 I NO LOAD POS = INEG = 5V 2.0 I 2.25 POS = INEG = 12V I I POS = INEG = 20V LOAD = 50mA 700 2.00 1.5 600 I 1.75 POS = INEG = 3V SUPPLY CURRENT ( 1.0 NEG 500 1.50 NO LOAD + I GATE OUTPUT SWING LOW (V) GATE OUTPUT SWING HIGH (V) 0.5 1.25 I POS 400 1.00 0 300 –75 – 50 –25 0 25 50 75 100 125 150 175 –75 – 50 –25 0 25 50 75 100 125 150 175 –75 – 50 –25 0 25 50 75 100 125 150 175 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3150 G12 3150 G13 3150 G14
Current Limit Threshold Voltage Current Limit Threshold Voltage SHDN2 Sink Current vs Temperature Line Regulation vs Temperature vs Temperature
65 0 7.5 7.0 60 – 0.1 6.5 µA) 6.0 55 IPOS = 5V IPOS = 3V – 0.2 5.5 50 5.0 IPOS = 20V – 0.3 4.5 45 4.0 SHDN2 SINK CURRENT ( 40 CURRENT LIMIT THRESHOLD – 0.4 3.5 VOLTAGE LINE REGULATION (%/V) 3.0 CURRENT LIMIT THRESHOLD VOLTAGE (mV) 35 – 0.5 2.5 –75 – 50 –25 0 25 50 75 100 125 150 175 –75 – 50 –25 0 25 50 75 100 125 150 175 –75 – 50 –25 0 25 50 75 100 125 150 175 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3150 G15 3150 G16 3150 G17 3150f 5
