Datasheet LT1575, LT1577 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | Ultrafast Transient Response, Low Dropout Regulators Adjustable and Fixed |
| Pages / Page | 20 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. Error Amplifier Large-Signal. … |
| File Format / Size | PDF / 320 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Error Amplifier Large-Signal. REF/VOUT Line Regulation. vs Temperature
Model Line for this Datasheet
- LT1575CN8#PBF LT1575CN8#PBF LT1575CN8-1.5#PBF LT1575CN8-1.5#PBF LT1575CN8-2.8#PBF LT1575CN8-2.8#PBF LT1575CN8-3.3#PBF LT1575CN8-3.3#PBF LT1575CN8-3.5#PBF LT1575CN8-3.5#PBF LT1575CN8-5#PBF LT1575CN8-5#PBF LT1575CS8#PBF LT1575CS8#PBF LT1575CS8#TRPBF LT1575CS8#TRPBF LT1575CS8-1.5#PBF LT1575CS8-1.5#PBF LT1575CS8-2.8#PBF LT1575CS8-2.8#PBF LT1575CS8-3.3#PBF LT1575CS8-3.3#PBF LT1575CS8-3.5#PBF LT1575CS8-3.5#PBF LT1575CS8-5#PBF LT1575CS8-5#PBF
Text Version of Document
LT1575/LT1577
W U TYPICAL PERFORMANCE CHARACTERISTICS V Error Amplifier Large-Signal REF/VOUT Line Regulation vs Temperature Voltage Gain vs Temperature Gain and Phase vs Frequency
0.030 120 200 115 0.025 110 V) 150 105 0.020 PHASE 100 0.015 95 100 90 GAIN 0.010 85 LINE REGULATION (%/ 50 80 0.005 LARGE-SIGNAL VOLTAGE GAIN (dB) 75 ERROR AMPLIFIER GAIN AND PHASE 0 70 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) 1575/77 G12 1575/77 G10 1575/77 G11
Gate Output Swing Low Gate Output Swing High IPOS + INEG Supply Current vs Temperature vs Temperature vs Temperature
3.00 3.0 1000 ILOAD = 50mA 2.75 2.5 µA) 900 2.50 NO LOAD 800 IPOS = INEG = 5V 2.0 2.25 IPOS = INEG = 12V IPOS = INEG = 20V ILOAD = 50mA 700 2.00 1.5 600 IPOS = INEG = 3V 1.75 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) 1575/77 G13 1575/77 G14 1575/77 G15
Current Limit Threshold Voltage Current Limit Threshold Voltage vs Temperature Line Regulation vs Temperature
65 0 60 – 0.1 55 IPOS = 5V IPOS = 3V – 0.2 50 IPOS = 20V – 0.3 45 CURRENT LIMIT THRESHOLD – 0.4 40 VOLTAGE LINE REGULATION (%/V) CURRENT LIMIT THRESHOLD VOLTAGE (mV) 35 – 0.5 –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) 1575/77 G16 1575/77 G17 5
W U TYPICAL PERFORMANCE CHARACTERISTICS V Error Amplifier Large-Signal REF/VOUT Line Regulation vs Temperature Voltage Gain vs Temperature Gain and Phase vs Frequency
0.030 120 200 115 0.025 110 V) 150 105 0.020 PHASE 100 0.015 95 100 90 GAIN 0.010 85 LINE REGULATION (%/ 50 80 0.005 LARGE-SIGNAL VOLTAGE GAIN (dB) 75 ERROR AMPLIFIER GAIN AND PHASE 0 70 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) 1575/77 G12 1575/77 G10 1575/77 G11
Gate Output Swing Low Gate Output Swing High IPOS + INEG Supply Current vs Temperature vs Temperature vs Temperature
3.00 3.0 1000 ILOAD = 50mA 2.75 2.5 µA) 900 2.50 NO LOAD 800 IPOS = INEG = 5V 2.0 2.25 IPOS = INEG = 12V IPOS = INEG = 20V ILOAD = 50mA 700 2.00 1.5 600 IPOS = INEG = 3V 1.75 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) 1575/77 G13 1575/77 G14 1575/77 G15
Current Limit Threshold Voltage Current Limit Threshold Voltage vs Temperature Line Regulation vs Temperature
65 0 60 – 0.1 55 IPOS = 5V IPOS = 3V – 0.2 50 IPOS = 20V – 0.3 45 CURRENT LIMIT THRESHOLD – 0.4 40 VOLTAGE LINE REGULATION (%/V) CURRENT LIMIT THRESHOLD VOLTAGE (mV) 35 – 0.5 –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) 1575/77 G16 1575/77 G17 5
