Datasheet LTC3834 (Analog Devices) - 7
| Fabricante | Analog Devices |
| Descripción | 30μA IQ Synchronous Step-Down Controller |
| Páginas / Página | 30 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| Formato / tamaño de archivo | PDF / 793 Kb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Regulated Feedback Voltage
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LTC3834
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Regulated Feedback Voltage SENSE Pins Total Input Bias Shutdown Current vs Temperature Current vs Temperature vs Input Voltage
808 60 12 V 30 OUT = 10V 806 0 10 V 804 –30 OUT = 3.3V TAGE (mV) –60 8 802 –90 800 –120 6 –150 798 –180 4 TED FEEDBACK VOL INPUT CURRENT (µA) VOUT = 0V INPUT CURRENT (µA) 796 –210 –240 2 794 REGULA –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) 3834 G21 3834 G22 3834 G23
Oscillator Frequency Undervoltage Lockout Threshold vs Temperature vs Temperature
800 4.2 700 4.1 4.0 600 V RISING PLLLPF = INTVCC 3.9 500 3.8 V TAGE (V) 400 PLLLPF = FLOAT 3.7 FALLING VOL 300 3.6 V V CC FREQUENCY (kHz) PLLLPF = GND INT 3.5 200 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) 3834 G24 3834 G25
INTVCC vs Load Current Shutdown Current vs Temperature
5.3 7 V 5.2 IN = 12V 6 5.1 5 5.0 TAGE (V) 4 VOL 4.9 CC 3 EXTVCC = 5V INTV 4.8 2 SHUTDOWN CURRENT (µA) 4.7 1 4.6 0 0 10 20 30 40 50 60 –45 –30 –15 0 15 30 45 60 75 90 LOAD CURRENT (mA) TEMPERATURE (°C) 3834 G26 3834 G27 3834fc For more information www.linear.com/LTC3834 7 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Regulated Feedback Voltage SENSE Pins Total Input Bias Shutdown Current vs Temperature Current vs Temperature vs Input Voltage
808 60 12 V 30 OUT = 10V 806 0 10 V 804 –30 OUT = 3.3V TAGE (mV) –60 8 802 –90 800 –120 6 –150 798 –180 4 TED FEEDBACK VOL INPUT CURRENT (µA) VOUT = 0V INPUT CURRENT (µA) 796 –210 –240 2 794 REGULA –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) 3834 G21 3834 G22 3834 G23
Oscillator Frequency Undervoltage Lockout Threshold vs Temperature vs Temperature
800 4.2 700 4.1 4.0 600 V RISING PLLLPF = INTVCC 3.9 500 3.8 V TAGE (V) 400 PLLLPF = FLOAT 3.7 FALLING VOL 300 3.6 V V CC FREQUENCY (kHz) PLLLPF = GND INT 3.5 200 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) 3834 G24 3834 G25
INTVCC vs Load Current Shutdown Current vs Temperature
5.3 7 V 5.2 IN = 12V 6 5.1 5 5.0 TAGE (V) 4 VOL 4.9 CC 3 EXTVCC = 5V INTV 4.8 2 SHUTDOWN CURRENT (µA) 4.7 1 4.6 0 0 10 20 30 40 50 60 –45 –30 –15 0 15 30 45 60 75 90 LOAD CURRENT (mA) TEMPERATURE (°C) 3834 G26 3834 G27 3834fc For more information www.linear.com/LTC3834 7 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Package Description Typical Application Related Parts