Datasheet LTC3308A (Analog Devices) - 6
| Fabricante | Analog Devices |
| Descripción | 5V, 4A Synchronous Step-Down Silent Switcher in 2mm x 2mm LQFN |
| Páginas / Página | 24 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless … |
| Formato / tamaño de archivo | PDF / 2.4 Mb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless otherwise noted. Switch Current Limits
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LTC3308A
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless otherwise noted. Switch Current Limits PMOS Current Limit PMOS Current Limit
7.5 7.5 7.5 VOUT/VIN = 0.2 VOUT/VIN = 0.2 7.0 7.0 7.0 6.5 6.5 6.5 6.0 6.0 6.0 5.5 5.5 5.5 5.0 5.0 5.0 SWITCH CURRENT (A) 4.5 PMOS CURRENT (A) PMOS CURRENT (A) 4.5 4.5 NMOS IVALLEYMAX 25°C V 4.0 IN = 2.5V PMOS IPEAKMAX 4.0 –60°C 4.0 VIN = 3.3V V 3.5 150°C IN = 5V –60 –30 0 30 60 90 120 150 3.5 3.5 2 2.5 3 3.5 4 4.5 5 5.5 0 10 20 30 40 50 60 70 80 90 100 TEMPERATURE (°C) 3308A G10 INPUT VOLTAGE (V) DUTY CYCLE (%) 3308A G11 3308A G12
VIN Quiescent Current, Burst VIN Quiescent Current All Modes, VIN Shutdown Current Mode Operation, Sleeping Not Sleeping
2.5 70 1.30 65 1.25 2.0 60 1.20 1.5 55 50 1.15 CURRENT (µA) 1.0 CURRENT (µA) 45 CURRENT (mA) V IN V IN 1.10 V IN 40 0.5 VIN = 5.5V V 1.05 IN = 5.5V 35 VIN = 3.3V VIN = 3.3V VIN = 2.25V VIN = 2.25V 0 30 1.00 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3308A G13 3308A G14 3308A G15
Switch Leakage EN Threshold VIN V UVLO Threshold IN
5 410 2.4 VIN = 5.5V EN RISING 400 RISING 4 2.3 FALLING 390 2.2 3 380 2.1 UVLO (V) 2 370 V IN 2.0 EN THRESHOLD (mV) 360 1 SWITCH LEAKAGE CURRENT (µA) EN FALLING PMOS 350 1.9 NMOS 0 340 1.8 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3308A G16 3308A G17 3308A G18 Rev. 0 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless otherwise noted. Switch Current Limits PMOS Current Limit PMOS Current Limit
7.5 7.5 7.5 VOUT/VIN = 0.2 VOUT/VIN = 0.2 7.0 7.0 7.0 6.5 6.5 6.5 6.0 6.0 6.0 5.5 5.5 5.5 5.0 5.0 5.0 SWITCH CURRENT (A) 4.5 PMOS CURRENT (A) PMOS CURRENT (A) 4.5 4.5 NMOS IVALLEYMAX 25°C V 4.0 IN = 2.5V PMOS IPEAKMAX 4.0 –60°C 4.0 VIN = 3.3V V 3.5 150°C IN = 5V –60 –30 0 30 60 90 120 150 3.5 3.5 2 2.5 3 3.5 4 4.5 5 5.5 0 10 20 30 40 50 60 70 80 90 100 TEMPERATURE (°C) 3308A G10 INPUT VOLTAGE (V) DUTY CYCLE (%) 3308A G11 3308A G12
VIN Quiescent Current, Burst VIN Quiescent Current All Modes, VIN Shutdown Current Mode Operation, Sleeping Not Sleeping
2.5 70 1.30 65 1.25 2.0 60 1.20 1.5 55 50 1.15 CURRENT (µA) 1.0 CURRENT (µA) 45 CURRENT (mA) V IN V IN 1.10 V IN 40 0.5 VIN = 5.5V V 1.05 IN = 5.5V 35 VIN = 3.3V VIN = 3.3V VIN = 2.25V VIN = 2.25V 0 30 1.00 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3308A G13 3308A G14 3308A G15
Switch Leakage EN Threshold VIN V UVLO Threshold IN
5 410 2.4 VIN = 5.5V EN RISING 400 RISING 4 2.3 FALLING 390 2.2 3 380 2.1 UVLO (V) 2 370 V IN 2.0 EN THRESHOLD (mV) 360 1 SWITCH LEAKAGE CURRENT (µA) EN FALLING PMOS 350 1.9 NMOS 0 340 1.8 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3308A G16 3308A G17 3308A G18 Rev. 0 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts