Datasheet LTC3808 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | No RSENSE , Low EMI, Synchronous DC/DC Controller with Output Tracking |
| 页数 / 页 | 28 / 6 — TYPICAL PERFOR A CE CHARACTERISTICS TA = 25. C unless otherwise noted. … |
| 文件格式/大小 | PDF / 386 Kb |
| 文件语言 | 英语 |
TYPICAL PERFOR A CE CHARACTERISTICS TA = 25. C unless otherwise noted. SYNC/MODE Pull-Down Current. Oscillator Frequency vs
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LTC3808
W U TYPICAL PERFOR A CE CHARACTERISTICS TA = 25
°
C unless otherwise noted. SYNC/MODE Pull-Down Current Oscillator Frequency vs Oscillator Frequency vs Input vs Temperature Temperature Voltage
2.80 10 5 A) µ 8 4 2.75 6 3 2.70 4 2 2.65 2 1 2.60 0 0 –2 –1 2.55 –4 –2 2.50 –6 NORMALIZED FREQUENCY (%) –3 2.45 –8 NORMALIZED FREQUENCY SHIFT (%) –4 SYNC/MODE PULL-DOWN CURRENT ( 2.40 –10 –5 –60 –40 –20 0 20 40 60 80 100 –60 –40 –20 0 20 40 60 80 100 2 3 4 5 6 7 8 9 10 TEMPERATURE (°C) TEMPERATURE (°C) INPUT VOLTAGE (V) 3808 G18 3808 G19 3808 G20
Shutdown Quiescent Current vs TRACK/SS Start-Up Current vs Input Voltage Sleep Current vs Input Voltage TRACK/SS Voltage
18 130 1.04 16 A) 120 µ 1.00 A) 14 µ A) 12 µ 110 0.96 10 100 8 0.92 6 90 SLEEP CURRENT ( SHUTDOWN CURRENT ( 4 0.88 80 2 TRACK/SS STARTUP CURRENT ( 0 70 0.84 2 3 4 5 6 7 8 9 10 2 3 4 5 6 7 8 9 10 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 INPUT VOLTAGE (V) INPUT VOLTAGE (V) TRACK/SS VOLTAGE (V) 3808 G21 3808 G22 3808 G24 3808f 6
W U TYPICAL PERFOR A CE CHARACTERISTICS TA = 25
°
C unless otherwise noted. SYNC/MODE Pull-Down Current Oscillator Frequency vs Oscillator Frequency vs Input vs Temperature Temperature Voltage
2.80 10 5 A) µ 8 4 2.75 6 3 2.70 4 2 2.65 2 1 2.60 0 0 –2 –1 2.55 –4 –2 2.50 –6 NORMALIZED FREQUENCY (%) –3 2.45 –8 NORMALIZED FREQUENCY SHIFT (%) –4 SYNC/MODE PULL-DOWN CURRENT ( 2.40 –10 –5 –60 –40 –20 0 20 40 60 80 100 –60 –40 –20 0 20 40 60 80 100 2 3 4 5 6 7 8 9 10 TEMPERATURE (°C) TEMPERATURE (°C) INPUT VOLTAGE (V) 3808 G18 3808 G19 3808 G20
Shutdown Quiescent Current vs TRACK/SS Start-Up Current vs Input Voltage Sleep Current vs Input Voltage TRACK/SS Voltage
18 130 1.04 16 A) 120 µ 1.00 A) 14 µ A) 12 µ 110 0.96 10 100 8 0.92 6 90 SLEEP CURRENT ( SHUTDOWN CURRENT ( 4 0.88 80 2 TRACK/SS STARTUP CURRENT ( 0 70 0.84 2 3 4 5 6 7 8 9 10 2 3 4 5 6 7 8 9 10 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 INPUT VOLTAGE (V) INPUT VOLTAGE (V) TRACK/SS VOLTAGE (V) 3808 G21 3808 G22 3808 G24 3808f 6