Datasheet LTC3834-1 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | 30μA IQ Synchronous Step-Down Controller |
| Pages / Page | 28 / 6 — TYPICAL PERFOR A CE CHARACTERISTICS TA = 25ºC, unless otherwise noted. … |
| File Format / Size | PDF / 300 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHARACTERISTICS TA = 25ºC, unless otherwise noted. SENSE Pins Total Input Bias
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Text Version of Document
LTC3834-1
W U TYPICAL PERFOR A CE CHARACTERISTICS TA = 25ºC, unless otherwise noted. SENSE Pins Total Input Bias TRACK/SS Pull-Up Current vs Shutdown (RUN) Threshold vs Current vs I Temperature Temperature TH
4 1.30 1.00 1.25 0.95 0.90 3 1.20 μA) 0.85 μA) 1.15 0.80 2 1.10 0.75 1.05 0.70 INPUT CURRENT ( 0.65 RUN PIN VOLTAGE (V) 1 TRACK/SS CURRENT ( 1.00 0.60 0.95 0.55 0 0.90 0.50 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 –45 –30 –15 0 15 30 45 60 75 90 –45 –30 –15 0 15 30 45 60 75 90 I TEMPERATURE ( TH VOLTAGE (V) °C) TEMPERATURE (°C) 38341 G18 38341 G19 38341 G20
Regulated Feedback Voltage vs SENSE Pins Total Input Bias Shutdown Current vs Input Temperature Current vs Temperature Voltage
808 60 V 12 OUT = 10V 30 806 0 10 VOUT = 3.3V 804 –30 μA) –60 μA) 8 802 –90 800 –120 6 –150 798 –180 V 4 INPUT CURRENT ( OUT = 0V INPUT CURRENT ( 796 –210 –240 2 794 REGULATED FEEDBACK VOLTAGE (mV) –270 792 –300 0 –45 –30 –15 0 15 30 45 60 75 90 –45 –30 –15 0 15 30 45 60 75 90 5 10 15 20 25 30 35 TEMPERATURE (°C) TEMPERATURE (°C) INPUT VOLTAGE (V) 38341 G21 38341 G22 38341 G23
Oscillator Frequency vs Undervoltage Lockout Threshold Temperature vs Temperature
800 4.2 4.1 700 4.0 600 RISING VPLLLPF = INTVCC 3.9 500 3.8 VPLLLPF = FLOAT 400 3.7 FALLING VOLTAGE (V) CC 3.6 300 V FREQUENCY (kHz) PLLLPF = GND 3.5 INT V 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) 38341 G24 38341 G25 38341f 6
W U TYPICAL PERFOR A CE CHARACTERISTICS TA = 25ºC, unless otherwise noted. SENSE Pins Total Input Bias TRACK/SS Pull-Up Current vs Shutdown (RUN) Threshold vs Current vs I Temperature Temperature TH
4 1.30 1.00 1.25 0.95 0.90 3 1.20 μA) 0.85 μA) 1.15 0.80 2 1.10 0.75 1.05 0.70 INPUT CURRENT ( 0.65 RUN PIN VOLTAGE (V) 1 TRACK/SS CURRENT ( 1.00 0.60 0.95 0.55 0 0.90 0.50 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 –45 –30 –15 0 15 30 45 60 75 90 –45 –30 –15 0 15 30 45 60 75 90 I TEMPERATURE ( TH VOLTAGE (V) °C) TEMPERATURE (°C) 38341 G18 38341 G19 38341 G20
Regulated Feedback Voltage vs SENSE Pins Total Input Bias Shutdown Current vs Input Temperature Current vs Temperature Voltage
808 60 V 12 OUT = 10V 30 806 0 10 VOUT = 3.3V 804 –30 μA) –60 μA) 8 802 –90 800 –120 6 –150 798 –180 V 4 INPUT CURRENT ( OUT = 0V INPUT CURRENT ( 796 –210 –240 2 794 REGULATED FEEDBACK VOLTAGE (mV) –270 792 –300 0 –45 –30 –15 0 15 30 45 60 75 90 –45 –30 –15 0 15 30 45 60 75 90 5 10 15 20 25 30 35 TEMPERATURE (°C) TEMPERATURE (°C) INPUT VOLTAGE (V) 38341 G21 38341 G22 38341 G23
Oscillator Frequency vs Undervoltage Lockout Threshold Temperature vs Temperature
800 4.2 4.1 700 4.0 600 RISING VPLLLPF = INTVCC 3.9 500 3.8 VPLLLPF = FLOAT 400 3.7 FALLING VOLTAGE (V) CC 3.6 300 V FREQUENCY (kHz) PLLLPF = GND 3.5 INT V 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) 38341 G24 38341 G25 38341f 6
