Datasheet LTC3458L (Analog Devices) - 4
| Hersteller | Analog Devices |
| Beschreibung | 1.7A, 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect |
| Seiten / Seite | 16 / 4 — TYPICAL PERFOR A CE CHARACTERISTICS (TA = 25. C unless otherwise … |
| Dateiformat / Größe | PDF / 385 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFOR A CE CHARACTERISTICS (TA = 25. C unless otherwise specified). Frequency Accuracy. Efficiency vs Frequency
Modelllinie für dieses Datenblatt
Textversion des Dokuments
LTC3458L
W U TYPICAL PERFOR A CE CHARACTERISTICS (TA = 25
°
C unless otherwise specified) Frequency Accuracy Efficiency vs Frequency N-Channel and P-Channel RDS(ON)
1.05 95 0.5 RT = 200k VIN = 3.3V VOUT = 5V 1.03 93 P-CHANNEL 0.3 ) 1.01 91 Ω ( 0.2 N-CHANNEL 89 DS(ON) 0.99 R EFFICIENCY (%) FREQUENCY (MHz) 0.1 0.97 87 VIN = 3.3V VOUT = 5V at 200mA L = 7.4μH 0.95 85 0 –45 –30 –15 0 15 30 45 60 75 90 500 700 900 1100 1300 1500 –40 –15 10 35 60 85 TEMPERATURE (°C) FREQUENCY (kHz) TEMPERATURE (°C) 3458L G07 3458L G08 3458L G09
SHDN Pin Threshold and Maximum Load Current Hysteresis SYNC Pin Threshold
1600 1.0 1.5 1.8 to 5.5VIN at 1MHz 1400 R 5V ILIM = 84.5k OUT 1.4 0.9 1200 1.3 1000 OPERATING 3.3VOUT 0.8 1.2 800 1.1 600 VOLTAGE (V) 0.7 VOLTAGE (V) SHUTDOWN 1.0 MAX LOAD CURRENT (mA) 400 0.6 200 0.9 0 0.5 0.8 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –45 –30 –15 0 15 30 45 60 75 90 –45 –30 –15 0 15 30 45 60 75 90 VIN (V) TEMPERATURE (°C) TEMPERATURE (°C) 3458L G11 3458L G12 3458L G10
FB Voltage
1.25 1.24 1.23 VOLTAGE (V) 1.22 1.21 1.20 –45 –30 –15 0 15 30 45 60 75 90 TEMPERATURE (°C) 3458L G13 3458lfa 4
W U TYPICAL PERFOR A CE CHARACTERISTICS (TA = 25
°
C unless otherwise specified) Frequency Accuracy Efficiency vs Frequency N-Channel and P-Channel RDS(ON)
1.05 95 0.5 RT = 200k VIN = 3.3V VOUT = 5V 1.03 93 P-CHANNEL 0.3 ) 1.01 91 Ω ( 0.2 N-CHANNEL 89 DS(ON) 0.99 R EFFICIENCY (%) FREQUENCY (MHz) 0.1 0.97 87 VIN = 3.3V VOUT = 5V at 200mA L = 7.4μH 0.95 85 0 –45 –30 –15 0 15 30 45 60 75 90 500 700 900 1100 1300 1500 –40 –15 10 35 60 85 TEMPERATURE (°C) FREQUENCY (kHz) TEMPERATURE (°C) 3458L G07 3458L G08 3458L G09
SHDN Pin Threshold and Maximum Load Current Hysteresis SYNC Pin Threshold
1600 1.0 1.5 1.8 to 5.5VIN at 1MHz 1400 R 5V ILIM = 84.5k OUT 1.4 0.9 1200 1.3 1000 OPERATING 3.3VOUT 0.8 1.2 800 1.1 600 VOLTAGE (V) 0.7 VOLTAGE (V) SHUTDOWN 1.0 MAX LOAD CURRENT (mA) 400 0.6 200 0.9 0 0.5 0.8 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –45 –30 –15 0 15 30 45 60 75 90 –45 –30 –15 0 15 30 45 60 75 90 VIN (V) TEMPERATURE (°C) TEMPERATURE (°C) 3458L G11 3458L G12 3458L G10
FB Voltage
1.25 1.24 1.23 VOLTAGE (V) 1.22 1.21 1.20 –45 –30 –15 0 15 30 45 60 75 90 TEMPERATURE (°C) 3458L G13 3458lfa 4