Datasheet LTC3630A (Analog Devices) - 5
| Fabricante | Analog Devices |
| Descripción | High Efficiency, 76V 500mA Synchronous Step-Down Converter |
| Páginas / Página | 26 / 5 — Typical perForMance characTerisTics. Efficiency vs Input Voltage. Line … |
| Formato / tamaño de archivo | PDF / 347 Kb |
| Idioma del documento | Inglés |
Typical perForMance characTerisTics. Efficiency vs Input Voltage. Line Regulation vs Input Voltage
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LTC3630A
Typical perForMance characTerisTics Efficiency vs Input Voltage Line Regulation vs Input Voltage Load Regulation vs Load Current
95 0.05 5.04 VOUT = 5V FIGURE 13 CIRCUIT VIN = 12V 90 FIGURE 13 CIRCUIT 0.04 ILOAD = 500mA 5.03 VOUT = 5V 0.03 FIGURE 13 CIRCUIT 85 5.02 0.02 80 (%) 0.01 5.01 75 OUT/V 0 5.00 OUT –0.01 EFFICIENCY (%) 70 4.99 ∆V –0.02 OUTPUT VOLTAGE (V) 65 ILOAD = 500mA 4.98 I –0.03 LOAD = 100mA 60 ILOAD = 10mA –0.04 4.97 ILOAD = 1mA 55 –0.05 4.96 10 20 30 40 50 60 70 5 15 25 35 45 55 65 75 0 100 200 300 400 500 INPUT VOLTAGE (V) INPUT VOLTAGE (V) LOAD CURRENT (mA) 3630a G07 3630a G08 3630a G09
Feedback Comparator Trip Feedback Comparator Hysteresis Peak Current Trip Threshold Voltage vs Temperature vs Temperature vs Temperature and ISET
0.804 5.5 1400 VIN = 12V VIN = 12V VIN = 12V 5.4 ISET OPEN 1200 5.3 0.802 5.2 1000 5.1 800 0.800 5.0 RISET = 100kΩ 4.9 600 4.8 0.798 400 4.7 200 I 4.6 SET = GND PEAK CURRENT TRIP THRESHOLD (mA) FEEDBACK COMPARATOR TRIP VOLTAGE (V) FEEDBACK COMPARATOR HYSTERESIS (mV) 0.796 4.5 0 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3630a G10 3630a G11 3630a G12
Peak Current Trip Threshold Peak Current Trip Threshold Quiescent VIN Supply Current vs RISET vs Input Voltage vs Input Voltage
1400 1400 16 VIN = 12V ISET = OPEN SLEEP 1200 1200 14 12 1000 1000 10 800 800 ISET = 100k 8 SHUTDOWN 600 600 6 400 400 SUPPLY CURRENT (µA) V IN 4 200 200 ISET = 0V 2 PEAK CURRENT TRIP THRESHOLD (mA) PEAK CURRENT TRIP THRESHOLD (mA) 0 0 0 0 50 100 150 200 250 0 10 20 30 40 50 60 70 5 15 25 35 45 55 65 75 RISET (kΩ) INPUT VOLTAGE (V) VIN VOLTAGE (V) 3630a G13 3630a G14 3630a G15 3630afc For more information www.linear.com/LTC3630A 5 Document Outline Features Applications Description Typical Application 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
Typical perForMance characTerisTics Efficiency vs Input Voltage Line Regulation vs Input Voltage Load Regulation vs Load Current
95 0.05 5.04 VOUT = 5V FIGURE 13 CIRCUIT VIN = 12V 90 FIGURE 13 CIRCUIT 0.04 ILOAD = 500mA 5.03 VOUT = 5V 0.03 FIGURE 13 CIRCUIT 85 5.02 0.02 80 (%) 0.01 5.01 75 OUT/V 0 5.00 OUT –0.01 EFFICIENCY (%) 70 4.99 ∆V –0.02 OUTPUT VOLTAGE (V) 65 ILOAD = 500mA 4.98 I –0.03 LOAD = 100mA 60 ILOAD = 10mA –0.04 4.97 ILOAD = 1mA 55 –0.05 4.96 10 20 30 40 50 60 70 5 15 25 35 45 55 65 75 0 100 200 300 400 500 INPUT VOLTAGE (V) INPUT VOLTAGE (V) LOAD CURRENT (mA) 3630a G07 3630a G08 3630a G09
Feedback Comparator Trip Feedback Comparator Hysteresis Peak Current Trip Threshold Voltage vs Temperature vs Temperature vs Temperature and ISET
0.804 5.5 1400 VIN = 12V VIN = 12V VIN = 12V 5.4 ISET OPEN 1200 5.3 0.802 5.2 1000 5.1 800 0.800 5.0 RISET = 100kΩ 4.9 600 4.8 0.798 400 4.7 200 I 4.6 SET = GND PEAK CURRENT TRIP THRESHOLD (mA) FEEDBACK COMPARATOR TRIP VOLTAGE (V) FEEDBACK COMPARATOR HYSTERESIS (mV) 0.796 4.5 0 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3630a G10 3630a G11 3630a G12
Peak Current Trip Threshold Peak Current Trip Threshold Quiescent VIN Supply Current vs RISET vs Input Voltage vs Input Voltage
1400 1400 16 VIN = 12V ISET = OPEN SLEEP 1200 1200 14 12 1000 1000 10 800 800 ISET = 100k 8 SHUTDOWN 600 600 6 400 400 SUPPLY CURRENT (µA) V IN 4 200 200 ISET = 0V 2 PEAK CURRENT TRIP THRESHOLD (mA) PEAK CURRENT TRIP THRESHOLD (mA) 0 0 0 0 50 100 150 200 250 0 10 20 30 40 50 60 70 5 15 25 35 45 55 65 75 RISET (kΩ) INPUT VOLTAGE (V) VIN VOLTAGE (V) 3630a G13 3630a G14 3630a G15 3630afc For more information www.linear.com/LTC3630A 5 Document Outline Features Applications Description Typical Application 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