Datasheet LTC3310S (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | 5V, 10A Synchronous Step-Down Silent Switcher 2 in 3mm x 3mm LQFN |
| 页数 / 页 | 30 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 修订版 | B |
| 文件格式/大小 | PDF / 2.9 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Soft-Start Tracking. VIN Quiescent Current
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LTC3310S
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Soft-Start Tracking VIN Quiescent Current VIN Shutdown Current
600 2.5 2.5 500 2.0 2.0 400 1.5 1.5 TAGE (mV) 300 CURRENT (mA) 1.0 CURRENT (µA) 1.0 FB VOL 200 V IN V IN 0.5 0.5 100 VIN = 2.25V VIN = 3.3V VIN = 5.5V 0 0 0 0 100 200 300 400 500 600 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 SSTT VOLTAGE (mV) TEMPERATURE (°C) TEMPERATURE (°C) 3310S G17 3310S G18 3310S G19
Switch Current Limit OV PGOOD Threshold
18 –3.5 16 (%) REF –3.0 14 –2.5 12 10 –2.0 8 –1.5 CURRENT (A) 6 –1.0 4 –0.5 2 NMOS I LIMIT FB RISING PMOS I LIMIT PGOOD THRESHOLD OFFSET FROM V FB FALLING 0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3310S G20 3310S G21
UV PGOOD Threshold Minimum On-Time
10.0 80 (%) 9.5 70 REF 9.0 60 8.5 8.0 50 7.5 40 7.0 30 6.5 MINIMUM ON-TIME (ns) 20 6.0 VIN = 2.25V 5.5 FB RISING 10 VIN = 3.3V PGOOD THRESHOLD OFFSET FROM V FB FALLING VIN = 5.5V 5.0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3310S G22 3310S G25 Rev. B For more information www.analog.com 7 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 Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Soft-Start Tracking VIN Quiescent Current VIN Shutdown Current
600 2.5 2.5 500 2.0 2.0 400 1.5 1.5 TAGE (mV) 300 CURRENT (mA) 1.0 CURRENT (µA) 1.0 FB VOL 200 V IN V IN 0.5 0.5 100 VIN = 2.25V VIN = 3.3V VIN = 5.5V 0 0 0 0 100 200 300 400 500 600 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 SSTT VOLTAGE (mV) TEMPERATURE (°C) TEMPERATURE (°C) 3310S G17 3310S G18 3310S G19
Switch Current Limit OV PGOOD Threshold
18 –3.5 16 (%) REF –3.0 14 –2.5 12 10 –2.0 8 –1.5 CURRENT (A) 6 –1.0 4 –0.5 2 NMOS I LIMIT FB RISING PMOS I LIMIT PGOOD THRESHOLD OFFSET FROM V FB FALLING 0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3310S G20 3310S G21
UV PGOOD Threshold Minimum On-Time
10.0 80 (%) 9.5 70 REF 9.0 60 8.5 8.0 50 7.5 40 7.0 30 6.5 MINIMUM ON-TIME (ns) 20 6.0 VIN = 2.25V 5.5 FB RISING 10 VIN = 3.3V PGOOD THRESHOLD OFFSET FROM V FB FALLING VIN = 5.5V 5.0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3310S G22 3310S G25 Rev. B For more information www.analog.com 7 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 Revision History Typical Application Related Parts