Datasheet LTC3827-1 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | Low IQ, Dual, 2-Phase Synchronous Step-Down Controller |
| 页数 / 页 | 32 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Sense Pins Total Input Current. … |
| 文件格式/大小 | PDF / 458 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Sense Pins Total Input Current. Shutdown Current. vs Temperature. vs Input Voltage
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LTC3827-1
TYPICAL PERFORMANCE CHARACTERISTICS Sense Pins Total Input Current Shutdown Current vs Temperature vs Input Voltage
200 25 VOUT = 10V 100 VOUT = 3.3V 0 20 –100 –200 15 –300 –400 10 INPUT CURRENT (μA) –500 INPUT CURRENT (μA) –600 V 5 OUT = OV –700 –800 0 –45 –30 –15 0 15 30 45 60 75 90 5 10 15 20 25 30 35 TEMPERATURE (°C) INPUT VOLTAGE (V) 38271 G22 38271 G23
Oscillator Frequency Undervoltage Lockout Threshold vs Temperature vs Temperature
800 4.2 4.1 700 4.0 600 VPLLLPF = INTVCC 3.9 500 RISING 3.8 VPLLLPF = FLOAT 400 3.7 VOLTAGE (V) CC 3.6 300 V FREQUENCY (kHz) PLLLPF = GND INTV 3.5 FALLING 200 3.4 100 3.3 0 3.2 –45 –25 –5 15 35 55 75 95 –45 –30 –15 0 15 30 45 60 75 90 TEMPERATURE (°C) TEMPERATURE (°C) 38271 G24 38271 G25
Oscillator Frequency Shutdown Current vs Input Voltage vs Temperature
404 12 402 10 400 8 398 6 FREQUENCY (kHz) 396 4 SHUTDOWN CURRENT (μA) 394 2 392 0 5 10 15 20 25 30 35 –45 –30 –15 0 15 30 45 60 75 90 INPUT VOLTAGE (V) TEMPERATURE (°C) 38271 G26 38271 G27 38271fe 7
TYPICAL PERFORMANCE CHARACTERISTICS Sense Pins Total Input Current Shutdown Current vs Temperature vs Input Voltage
200 25 VOUT = 10V 100 VOUT = 3.3V 0 20 –100 –200 15 –300 –400 10 INPUT CURRENT (μA) –500 INPUT CURRENT (μA) –600 V 5 OUT = OV –700 –800 0 –45 –30 –15 0 15 30 45 60 75 90 5 10 15 20 25 30 35 TEMPERATURE (°C) INPUT VOLTAGE (V) 38271 G22 38271 G23
Oscillator Frequency Undervoltage Lockout Threshold vs Temperature vs Temperature
800 4.2 4.1 700 4.0 600 VPLLLPF = INTVCC 3.9 500 RISING 3.8 VPLLLPF = FLOAT 400 3.7 VOLTAGE (V) CC 3.6 300 V FREQUENCY (kHz) PLLLPF = GND INTV 3.5 FALLING 200 3.4 100 3.3 0 3.2 –45 –25 –5 15 35 55 75 95 –45 –30 –15 0 15 30 45 60 75 90 TEMPERATURE (°C) TEMPERATURE (°C) 38271 G24 38271 G25
Oscillator Frequency Shutdown Current vs Input Voltage vs Temperature
404 12 402 10 400 8 398 6 FREQUENCY (kHz) 396 4 SHUTDOWN CURRENT (μA) 394 2 392 0 5 10 15 20 25 30 35 –45 –30 –15 0 15 30 45 60 75 90 INPUT VOLTAGE (V) TEMPERATURE (°C) 38271 G26 38271 G27 38271fe 7