Datasheet LTC3826-1 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | 30µA IQ, Dual, 2-Phase Synchronous Step-Down Controller |
| 页数 / 页 | 32 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. Sense Pins Total Input. Foldback … |
| 文件格式/大小 | PDF / 438 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Sense Pins Total Input. Foldback Current Limit. Quiescent Current vs Temperature
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LTC3826-1
TYPICAL PERFORMANCE CHARACTERISTICS Sense Pins Total Input Foldback Current Limit Quiescent Current vs Temperature Bias Current vs ITH
120 44 4 TRACK/SS = 1V PLLIN/MODE = 0V VSENSE = 3.3V 42 100 40 3 38 80 36 60 34 2 32 40 30 INPUT CURRENT (μA) QUIESCENT CURRENT (μA) 1 28 20 26 MAXIMUM CURRENT SENSE VOLTAGE (mV) 0 24 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 –45 –30 –15 0 15 30 45 60 75 90 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 FEEDBACK VOLTAGE (V) TEMPERATURE (°C) ITH VOLTAGE (V) 38261 G16 38261 G17 38261 G18
TRACK/SS Pull-Up Current Shutdown (RUN) Threshold Regulated Feedback Voltage vs Temperature vs Temperature vs Temperature
1.20 1.00 808 0.95 1.15 806 0.90 1.10 804 0.85 1.05 0.80 802 1.00 0.75 800 0.70 0.95 798 RUN PIN VOLTAGE (V) 0.65 TRACK/SS CURRENT (μA) 0.90 796 0.60 0.85 0.55 REGULATED FEEDBACK VOLTAGE (mV) 794 0.80 0.50 792 –45 –30 –15 0 15 30 45 60 75 90 –45 –30 –15 0 15 30 45 60 75 90 –45 –30 –15 0 15 30 45 60 75 90 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 38261 G19 38261 G20 38261 G21
Sense Pins Total Input Current Shutdown Current Oscillator Frequency vs Temperature vs Input Voltage vs Temperature
60 6 800 30 700 0 5 –30 V 600 OUT = 10V VPLLLPF = INTVCC –60 V 4 OUT = 3.3V 500 –90 VPLLLPF = FLOAT –120 3 400 –150 300 VPLLLPF = GND –180 V 2 FREQUENCY (kHz) INPUT CURRENT (μA) OUT = 0V INPUT CURRENT (μA) –210 200 –240 1 100 –270 –300 0 0 –45 –30 –15 0 15 30 45 60 75 90 5 10 15 20 25 30 35 –45 –25 –5 15 35 55 75 95 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 38261 G22 38261 G23 38261 G24 38261fb 6
TYPICAL PERFORMANCE CHARACTERISTICS Sense Pins Total Input Foldback Current Limit Quiescent Current vs Temperature Bias Current vs ITH
120 44 4 TRACK/SS = 1V PLLIN/MODE = 0V VSENSE = 3.3V 42 100 40 3 38 80 36 60 34 2 32 40 30 INPUT CURRENT (μA) QUIESCENT CURRENT (μA) 1 28 20 26 MAXIMUM CURRENT SENSE VOLTAGE (mV) 0 24 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 –45 –30 –15 0 15 30 45 60 75 90 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 FEEDBACK VOLTAGE (V) TEMPERATURE (°C) ITH VOLTAGE (V) 38261 G16 38261 G17 38261 G18
TRACK/SS Pull-Up Current Shutdown (RUN) Threshold Regulated Feedback Voltage vs Temperature vs Temperature vs Temperature
1.20 1.00 808 0.95 1.15 806 0.90 1.10 804 0.85 1.05 0.80 802 1.00 0.75 800 0.70 0.95 798 RUN PIN VOLTAGE (V) 0.65 TRACK/SS CURRENT (μA) 0.90 796 0.60 0.85 0.55 REGULATED FEEDBACK VOLTAGE (mV) 794 0.80 0.50 792 –45 –30 –15 0 15 30 45 60 75 90 –45 –30 –15 0 15 30 45 60 75 90 –45 –30 –15 0 15 30 45 60 75 90 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 38261 G19 38261 G20 38261 G21
Sense Pins Total Input Current Shutdown Current Oscillator Frequency vs Temperature vs Input Voltage vs Temperature
60 6 800 30 700 0 5 –30 V 600 OUT = 10V VPLLLPF = INTVCC –60 V 4 OUT = 3.3V 500 –90 VPLLLPF = FLOAT –120 3 400 –150 300 VPLLLPF = GND –180 V 2 FREQUENCY (kHz) INPUT CURRENT (μA) OUT = 0V INPUT CURRENT (μA) –210 200 –240 1 100 –270 –300 0 0 –45 –30 –15 0 15 30 45 60 75 90 5 10 15 20 25 30 35 –45 –25 –5 15 35 55 75 95 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 38261 G22 38261 G23 38261 G24 38261fb 6