Datasheet LTC3713 (Analog Devices) - 5
| Fabricante | Analog Devices |
| Descripción | Low Input Voltage, High Power, No RSENSE Synchronous Buck DC/DC Controller |
| Páginas / Página | 24 / 5 — TYPICAL PERFOR A CE CHARACTERISTICS. Load Regulation. Frequency vs Input … |
| Formato / tamaño de archivo | PDF / 291 Kb |
| Idioma del documento | Inglés |
TYPICAL PERFOR A CE CHARACTERISTICS. Load Regulation. Frequency vs Input Voltage. On-Time vs ION Current
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LTC3713
W U TYPICAL PERFOR A CE CHARACTERISTICS Load Regulation Frequency vs Input Voltage On-Time vs ION Current
0 350 10k VVON = 0V –0.1 300 LOAD = 6A –0.2 250 1k LOAD = 0A 200 (%) –0.3 OUT∆V –0.4 150 ON-TIME (ns) FREQUENCY (kHz) 100 –0.5 100 –0.6 50 FIGURE 1 CIRCUIT FIGURE 1 CIRCUIT –0.7 0 10 0 1 2 3 4 5 6 7 8 9 10 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 1 10 100 LOAD CURRENT (A) INPUT VOLTAGE (V) ION CURRENT (µA) 3713 G13 3713 G11 3713 G12
On-Time vs VON Voltage On-Time vs Temperature Current Limit Foldback
1000 300 150 IION = 30µA IION = 30µA VRNG = 1V 250 125 800 200 100 600 150 75 ON-TIME (ns) 400 ON-TIME (ns) 100 50 200 50 25 0 0 MAXIMUM CURRENT SENSE THRESHOLD (mV) 0 0 1 2 3 –50 –25 0 25 50 75 100 125 0 0.2 0.4 0.6 0.8 VON VOLTAGE (V) TEMPERATURE (°C) VFB (V) 3713 G14 3713 G15 3713 G16
Maximum Current Sense Maximum Current Sense Maximum Current Sense Threshold vs VRNG Voltage Threshold vs RUN/SS Voltage Threshold vs Temperature
300 150 150 VRNG = 1V VRNG = 1V 250 125 140 200 100 130 150 75 120 100 50 110 50 25 MAXIMUM CURRENT SENSE THRESHOLD (mV) 0 MAXIMUM CURRENT SENSE THRESHOLD (mV) 0 MAXIMUM CURRENT SENSE THRESHOLD (mV) 100 0.5 0.75 1.0 1.25 1.5 1.75 2.0 1.5 2 2.5 3 3.5 –50 –25 0 25 50 75 100 125 VRNG VOLTAGE (V) RUN/SS VOLTAGE (V) TEMPERATURE (°C) 3713 G17 3713 G18 3713 G19 3713fa 5
W U TYPICAL PERFOR A CE CHARACTERISTICS Load Regulation Frequency vs Input Voltage On-Time vs ION Current
0 350 10k VVON = 0V –0.1 300 LOAD = 6A –0.2 250 1k LOAD = 0A 200 (%) –0.3 OUT∆V –0.4 150 ON-TIME (ns) FREQUENCY (kHz) 100 –0.5 100 –0.6 50 FIGURE 1 CIRCUIT FIGURE 1 CIRCUIT –0.7 0 10 0 1 2 3 4 5 6 7 8 9 10 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 1 10 100 LOAD CURRENT (A) INPUT VOLTAGE (V) ION CURRENT (µA) 3713 G13 3713 G11 3713 G12
On-Time vs VON Voltage On-Time vs Temperature Current Limit Foldback
1000 300 150 IION = 30µA IION = 30µA VRNG = 1V 250 125 800 200 100 600 150 75 ON-TIME (ns) 400 ON-TIME (ns) 100 50 200 50 25 0 0 MAXIMUM CURRENT SENSE THRESHOLD (mV) 0 0 1 2 3 –50 –25 0 25 50 75 100 125 0 0.2 0.4 0.6 0.8 VON VOLTAGE (V) TEMPERATURE (°C) VFB (V) 3713 G14 3713 G15 3713 G16
Maximum Current Sense Maximum Current Sense Maximum Current Sense Threshold vs VRNG Voltage Threshold vs RUN/SS Voltage Threshold vs Temperature
300 150 150 VRNG = 1V VRNG = 1V 250 125 140 200 100 130 150 75 120 100 50 110 50 25 MAXIMUM CURRENT SENSE THRESHOLD (mV) 0 MAXIMUM CURRENT SENSE THRESHOLD (mV) 0 MAXIMUM CURRENT SENSE THRESHOLD (mV) 100 0.5 0.75 1.0 1.25 1.5 1.75 2.0 1.5 2 2.5 3 3.5 –50 –25 0 25 50 75 100 125 VRNG VOLTAGE (V) RUN/SS VOLTAGE (V) TEMPERATURE (°C) 3713 G17 3713 G18 3713 G19 3713fa 5