Datasheet LT3470A (Analog Devices) - 5
| Fabricante | Analog Devices |
| Descripción | Micropower Buck Regulator with Integrated Boost and Catch Diodes |
| Páginas / Página | 20 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. FB … |
| Formato / tamaño de archivo | PDF / 207 Kb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. FB Bias Current (VFB = 1V)
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LT3470A
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LT3470A
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. FB Bias Current (VFB = 1V) FB Bias Current (VFB = 0V) vs Temperature vs Temperature
60 120 50 100 40 80 30 60 FB CURRENT (nA) 20 FB CURRENT (μA) 40 10 20 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3470a G08 3470a G09
Switch VCESAT (ISW = 100mA) Boost Diode VF (IF = 50mA) vs Temperature vs Temperature
300 0.8 0.7 250 0.6 200 (mV) (V) F 0.5 CESAT 150 0.4 0.3 100 SCHOTTKY V SWITCH V 0.2 50 0.1 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3470a G10 3470a G11
Catch Diode VF (IF = 100mA) Diode Leakage (VR = 36V) vs Temperature vs Temperature
0.7 60 CATCH 55 BOOST 0.6 50 45 0.5 40 (V) F 0.4 35 30 0.3 25 SCHOTTKY V 20 0.2 15 0.1 SCHOTTKY DIODE LEAKAGE (mA) 10 5 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3470a G12 3470a G13 3470afb 5
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. FB Bias Current (VFB = 1V) FB Bias Current (VFB = 0V) vs Temperature vs Temperature
60 120 50 100 40 80 30 60 FB CURRENT (nA) 20 FB CURRENT (μA) 40 10 20 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3470a G08 3470a G09
Switch VCESAT (ISW = 100mA) Boost Diode VF (IF = 50mA) vs Temperature vs Temperature
300 0.8 0.7 250 0.6 200 (mV) (V) F 0.5 CESAT 150 0.4 0.3 100 SCHOTTKY V SWITCH V 0.2 50 0.1 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3470a G10 3470a G11
Catch Diode VF (IF = 100mA) Diode Leakage (VR = 36V) vs Temperature vs Temperature
0.7 60 CATCH 55 BOOST 0.6 50 45 0.5 40 (V) F 0.4 35 30 0.3 25 SCHOTTKY V 20 0.2 15 0.1 SCHOTTKY DIODE LEAKAGE (mA) 10 5 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3470a G12 3470a G13 3470afb 5