Datasheet LTC3307 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | 5V, 3A Synchronous Step-Down Silent Switcher in 2mm x 2mm LQFN |
| 页数 / 页 | 24 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless … |
| 文件格式/大小 | PDF / 2.3 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless otherwise noted. Switch Current Limits
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LTC3307
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless otherwise noted. Switch Current Limits PMOS Current Limit PMOS Current Limit
5.5 5.5 5.5 DUTY CYCLE = 20% DUTY CYCLE = 20% 5.0 5.0 5.0 4.5 4.5 4.5 4.0 4.0 4.0 3.5 3.5 3.5 PMOS CURRENT (A) PMOS CURRENT (A) SWITCH CURRENT (A) VIN = 2.5V 25°C 3.0 3.0 3.0 NMOS I V VALLEYMAX IN = 3.3V –60°C PMOS I V PEAKMAX IN = 5V 150°C 2.5 2.5 2.5 0 10 20 30 40 50 60 70 80 90 100 –50 –25 0 25 50 75 100 125 150 2 2.5 3 3.5 4 4.5 5 5.5 DUTY CYCLE (%) TEMPERATURE (°C) INPUT VOLTAGE (V) 3307A G12 3307A G10 3307A G11
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) 3307A G13 3307A G14 3307A 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) 3307A G16 3307A G17 3307A 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
5.5 5.5 5.5 DUTY CYCLE = 20% DUTY CYCLE = 20% 5.0 5.0 5.0 4.5 4.5 4.5 4.0 4.0 4.0 3.5 3.5 3.5 PMOS CURRENT (A) PMOS CURRENT (A) SWITCH CURRENT (A) VIN = 2.5V 25°C 3.0 3.0 3.0 NMOS I V VALLEYMAX IN = 3.3V –60°C PMOS I V PEAKMAX IN = 5V 150°C 2.5 2.5 2.5 0 10 20 30 40 50 60 70 80 90 100 –50 –25 0 25 50 75 100 125 150 2 2.5 3 3.5 4 4.5 5 5.5 DUTY CYCLE (%) TEMPERATURE (°C) INPUT VOLTAGE (V) 3307A G12 3307A G10 3307A G11
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) 3307A G13 3307A G14 3307A 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) 3307A G16 3307A G17 3307A 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