Datasheet LTC3811 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | High Speed Dual, Multiphase Step-Down DC/DC Controller |
| Pages / Page | 48 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Differential Amplifi er Gain vs. FB … |
| File Format / Size | PDF / 552 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Differential Amplifi er Gain vs. FB Voltage vs Temperature. FB Voltage Line Regulation
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LTC3811
TYPICAL PERFORMANCE CHARACTERISTICS Differential Amplifi er Gain vs FB Voltage vs Temperature FB Voltage Line Regulation Temperature
0.6030 600.5 1.010 0.6025 600.4 1.008 0.6020 /V) 600.3 1.006 0.6015 600.2 0.6010 1.004 0.6005 600.1 1.002 TAGE (mV) 0.6000 TAGE (mV) 600.0 1.000 0.5995 599.9 0.998 FB VOL 0.5990 FB VOL 599.8 0.996 0.5985 599.7 0.5980 0.994 0.5975 599.6 DIFFERENTIAL AMPLIFIER GAIN (V 0.992 0.5970 599.5 0.990 –50 –30 –10 10 30 50 70 90 110 130 0 4 8 12 16 20 24 28 32 36 –50 –30 –10 10 30 50 70 90 110 130 TEMPERATURE (°C) SUPPLY VOLTAGE (V) TEMPERATURE (°C) 3811 G10 3811 G11 3811 G12
Oscillator Frequency vs Oscillator Frequency vs Shutdown Mode Supply Current Temperature Supply Voltage vs Supply Voltage
800 800 40 V 85°C 700 V PLL/LPF = INTVCC PLL/LPF = INTVCC 700 35 25°C 600 600 30 VPLL/LPF = FLOATING VPLL/LPF = FLOATING –40°C 500 500 Y CURRENT (μA) 25 400 400 20 300 V TOR FREQUECY (kHz) PLL/LPF = 0V 300 V 15 PLL/LPF = 0V FREQUENCY (kHz) 200 200 10 OSCILLA 100 100 5 SHUTDOWN MODE SUPPL 0 0 0 –50 –30 –10 10 30 50 70 90 110 130 150 0 5 10 15 20 25 30 35 40 0 4 8 12 16 20 24 28 32 36 TEMPERATURE (°C) SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) 3811 G13 3811 G14 3811 G15
SS/TRACK Pin Current vs SS/TRACK Pin Current vs Supply Current vs Supply Voltage Common Mode Voltage Temperature
15 3.0 3.0 14 2.9 2.9 13 2.8 2.8 –40°C 12 2.7 2.7 25°C 11 2.6 2.6 85°C 10 2.5 2.5 Y CURRENT (mA) 9 2.4 2.4 8 2.3 2.3 SUPPL 7 SS/TRACK PIN CURRENT (μA) 2.2 SS/TRACK PIN CURRENT (μA) 2.2 6 2.1 2.1 5 2.0 2.0 0 4 8 12 16 20 24 28 32 36 0 100 200 300 400 500 600 700 –50 –30 –10 10 30 50 70 90 110 130 SUPPLY VOLTAGE (V) COMMON MODE VOLTAGE (mV) TEMPERATURE (°C) 3811 G16 3811 G17 3811 G18 3811f 7
TYPICAL PERFORMANCE CHARACTERISTICS Differential Amplifi er Gain vs FB Voltage vs Temperature FB Voltage Line Regulation Temperature
0.6030 600.5 1.010 0.6025 600.4 1.008 0.6020 /V) 600.3 1.006 0.6015 600.2 0.6010 1.004 0.6005 600.1 1.002 TAGE (mV) 0.6000 TAGE (mV) 600.0 1.000 0.5995 599.9 0.998 FB VOL 0.5990 FB VOL 599.8 0.996 0.5985 599.7 0.5980 0.994 0.5975 599.6 DIFFERENTIAL AMPLIFIER GAIN (V 0.992 0.5970 599.5 0.990 –50 –30 –10 10 30 50 70 90 110 130 0 4 8 12 16 20 24 28 32 36 –50 –30 –10 10 30 50 70 90 110 130 TEMPERATURE (°C) SUPPLY VOLTAGE (V) TEMPERATURE (°C) 3811 G10 3811 G11 3811 G12
Oscillator Frequency vs Oscillator Frequency vs Shutdown Mode Supply Current Temperature Supply Voltage vs Supply Voltage
800 800 40 V 85°C 700 V PLL/LPF = INTVCC PLL/LPF = INTVCC 700 35 25°C 600 600 30 VPLL/LPF = FLOATING VPLL/LPF = FLOATING –40°C 500 500 Y CURRENT (μA) 25 400 400 20 300 V TOR FREQUECY (kHz) PLL/LPF = 0V 300 V 15 PLL/LPF = 0V FREQUENCY (kHz) 200 200 10 OSCILLA 100 100 5 SHUTDOWN MODE SUPPL 0 0 0 –50 –30 –10 10 30 50 70 90 110 130 150 0 5 10 15 20 25 30 35 40 0 4 8 12 16 20 24 28 32 36 TEMPERATURE (°C) SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) 3811 G13 3811 G14 3811 G15
SS/TRACK Pin Current vs SS/TRACK Pin Current vs Supply Current vs Supply Voltage Common Mode Voltage Temperature
15 3.0 3.0 14 2.9 2.9 13 2.8 2.8 –40°C 12 2.7 2.7 25°C 11 2.6 2.6 85°C 10 2.5 2.5 Y CURRENT (mA) 9 2.4 2.4 8 2.3 2.3 SUPPL 7 SS/TRACK PIN CURRENT (μA) 2.2 SS/TRACK PIN CURRENT (μA) 2.2 6 2.1 2.1 5 2.0 2.0 0 4 8 12 16 20 24 28 32 36 0 100 200 300 400 500 600 700 –50 –30 –10 10 30 50 70 90 110 130 SUPPLY VOLTAGE (V) COMMON MODE VOLTAGE (mV) TEMPERATURE (°C) 3811 G16 3811 G17 3811 G18 3811f 7
