Datasheet LT3697 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | USB 5V, 2.5A Output, 35V Input Buck with Cable Drop Compensation |
| 页数 / 页 | 32 / 5 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 451 Kb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. USB5V Voltage. USB5V Current
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LT3697
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. USB5V Voltage USB5V Voltage USB5V Current
5.02 5.04 60 VIN = 12V ILOAD = 1A RCBL = 16.5k I 5.01 LOAD = 1A 5.03 VSENSE = 40mV 50 5.02 5.00 40 5.01 (V) 4.99 TAGE (V) (µA) 5.00 30 V USB5V 4.98 I USB5V 4.99 20 4.97 USB5V VOL VSENSE = 10mV 4.98 4.96 10 4.97 VSENSE = 0mV 4.95 4.96 0 –50 –25 0 25 50 75 100 125 150 6 10 14 18 22 26 30 34 38 42 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3697 G01 3697 G02 3697 G03
Sense Voltage (VISP - VISN) USB5V Current Output Current Limit Load Line at 4.5V Output
300 6 70 RLIM = 29.4k RLIM = 75k RLIM = ∞ RCBL = 2k RLIM = 49.9k RLIM = ∞ 250 5 60 50 RLIM = 75k 200 (V) 4 (mV) (µA) TAGE 40 150 3 ISN VIN = 12V - V VOUT = 4.5V I USB5V 30 R 100 2 V ISP LIM = 29.4k OUTPUT VOL 20 RCBL = 16.5k 50 1 10 RCBL = 130k RLIM = 0Ω 0 0 0 0 10 20 30 40 50 60 70 0.0 0.5 1.0 1.5 2.0 2.5 3.0 –50 –25 0 25 50 75 100 125 150 VSENSE (mV) OUTPUT CURRENT (A) TEMPERATURE (°C) V 3697 G04 IN = 12V 3697 G05 R 3697 G06 SENSE = 25mΩ RCBL = ∞
Sense Voltage (VISP - VISN) at 0.5V Output Efficiency at 2MHz Efficiency at 400kHz
80 100 100 70 RLIM = ∞ 90 90 60 RLIM = 75k 50 (mV) (%) 80 (%) f 80 SW = 2MHz fSW = 400kHz ISN 40 VIN = 12V RSENSE = 22mΩ RSENSE = 22mΩ - V VOUT = 0.5V L = 1.8µH L = 8.2µH 70 DCR 70 DCR V ISP 30 L = 10mΩ L = 24mΩ R EFFICIENCY EFFICIENCY LIM = 29.4k RCBL = ∞ RCBL = ∞ 20 60 VIN = 8V 60 VIN = 8V 10 RLIM = 0Ω VIN = 12V VIN = 12V VIN = 16V VIN = 24V 0 50 50 –50 –25 0 25 50 75 100 125 150 0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5 TEMPERATURE (°C) LOAD CURRENT (A) LOAD CURRENT (A) 3697 G07 3697 G08 3697 G09 3697f 5 For more information www.linear.com/LT3697
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. USB5V Voltage USB5V Voltage USB5V Current
5.02 5.04 60 VIN = 12V ILOAD = 1A RCBL = 16.5k I 5.01 LOAD = 1A 5.03 VSENSE = 40mV 50 5.02 5.00 40 5.01 (V) 4.99 TAGE (V) (µA) 5.00 30 V USB5V 4.98 I USB5V 4.99 20 4.97 USB5V VOL VSENSE = 10mV 4.98 4.96 10 4.97 VSENSE = 0mV 4.95 4.96 0 –50 –25 0 25 50 75 100 125 150 6 10 14 18 22 26 30 34 38 42 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3697 G01 3697 G02 3697 G03
Sense Voltage (VISP - VISN) USB5V Current Output Current Limit Load Line at 4.5V Output
300 6 70 RLIM = 29.4k RLIM = 75k RLIM = ∞ RCBL = 2k RLIM = 49.9k RLIM = ∞ 250 5 60 50 RLIM = 75k 200 (V) 4 (mV) (µA) TAGE 40 150 3 ISN VIN = 12V - V VOUT = 4.5V I USB5V 30 R 100 2 V ISP LIM = 29.4k OUTPUT VOL 20 RCBL = 16.5k 50 1 10 RCBL = 130k RLIM = 0Ω 0 0 0 0 10 20 30 40 50 60 70 0.0 0.5 1.0 1.5 2.0 2.5 3.0 –50 –25 0 25 50 75 100 125 150 VSENSE (mV) OUTPUT CURRENT (A) TEMPERATURE (°C) V 3697 G04 IN = 12V 3697 G05 R 3697 G06 SENSE = 25mΩ RCBL = ∞
Sense Voltage (VISP - VISN) at 0.5V Output Efficiency at 2MHz Efficiency at 400kHz
80 100 100 70 RLIM = ∞ 90 90 60 RLIM = 75k 50 (mV) (%) 80 (%) f 80 SW = 2MHz fSW = 400kHz ISN 40 VIN = 12V RSENSE = 22mΩ RSENSE = 22mΩ - V VOUT = 0.5V L = 1.8µH L = 8.2µH 70 DCR 70 DCR V ISP 30 L = 10mΩ L = 24mΩ R EFFICIENCY EFFICIENCY LIM = 29.4k RCBL = ∞ RCBL = ∞ 20 60 VIN = 8V 60 VIN = 8V 10 RLIM = 0Ω VIN = 12V VIN = 12V VIN = 16V VIN = 24V 0 50 50 –50 –25 0 25 50 75 100 125 150 0.0 0.5 1.0 1.5 2.0 2.5 0.0 0.5 1.0 1.5 2.0 2.5 TEMPERATURE (°C) LOAD CURRENT (A) LOAD CURRENT (A) 3697 G07 3697 G08 3697 G09 3697f 5 For more information www.linear.com/LT3697