Datasheet LT1107 (Analog Devices) - 4
| Hersteller | Analog Devices |
| Beschreibung | Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| Seiten / Seite | 16 / 4 — TYPICAL PERFOR A CE CH. ARA TERISTICS. Saturation Voltage, Step-Up Mode. … |
| Dateiformat / Größe | PDF / 217 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFOR A CE CH. ARA TERISTICS. Saturation Voltage, Step-Up Mode. Switch ON Voltage, Step-Down. (SW2 Pin Grounded)
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LT1107
W U TYPICAL PERFOR A CE CH C ARA TERISTICS Saturation Voltage, Step-Up Mode Switch ON Voltage, Step-Down (SW2 Pin Grounded) Mode (SW1 Pin Connected to VIN) Maximum Switch Current vs RLIM
1.2 1.5 1.4 1.4 1.3 1.3 1.0 VIN = 3V 1.2 1.2 1.1 0.8 1.0 STEP-UP V 1.1 0.9 2V ≤ VIN ≤ 5V IN = 2V VIN = 5V 0.6 0.8 1.0 0.7 0.6 0.4 STEP-DOWN 0.9 SWITCH CURRENT (A) 0.5 V SATURATION VOLTAGE (V) SWITCH ON VOLTAGE (V) IN = 12V 0.4 0.2 0.8 0.3 0.2 0 0.7 0.1 0 0.2 0.4 0.6 0.8 1.0 1.2 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 10 100 1000 SWITCH CURRENT (A) SWITCH CURRENT (A) RLIM (Ω) 1107 G03 1107 G01 1107 G02
Quiescent Current Quiescent Current Oscillator Frequency
400 400 100 T 380 A = 25°C 90 350 360 80 µA) µA) 340 300 70 320 250 300 60 280 50 200 FREQUENCY (kHz) 260 40 QUIESCENT CURRENT ( QUIESCENT CURRENT ( 240 150 30 220 100 200 20 –55 –35 –15 5 25 45 65 85 105 125 0 3 6 9 12 15 18 21 24 27 30 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 1107 G06 1107 G07 1107 G05
Switch ON Time Duty Cycle Switch ON Time Step-Up Mode Step-Up Mode Step-Down Mode
16 85 13 15 80 12 14 75 11 µs) 13 µs) 70 10 12 11 65 9 10 60 8 DUTY CYCLE (%) SWITCH ON TIME ( 9 SWITCH ON TIME ( 55 7 8 50 6 7 6 45 5 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1107 G08 1107 G09 1107 G10 1107fa 4
W U TYPICAL PERFOR A CE CH C ARA TERISTICS Saturation Voltage, Step-Up Mode Switch ON Voltage, Step-Down (SW2 Pin Grounded) Mode (SW1 Pin Connected to VIN) Maximum Switch Current vs RLIM
1.2 1.5 1.4 1.4 1.3 1.3 1.0 VIN = 3V 1.2 1.2 1.1 0.8 1.0 STEP-UP V 1.1 0.9 2V ≤ VIN ≤ 5V IN = 2V VIN = 5V 0.6 0.8 1.0 0.7 0.6 0.4 STEP-DOWN 0.9 SWITCH CURRENT (A) 0.5 V SATURATION VOLTAGE (V) SWITCH ON VOLTAGE (V) IN = 12V 0.4 0.2 0.8 0.3 0.2 0 0.7 0.1 0 0.2 0.4 0.6 0.8 1.0 1.2 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 10 100 1000 SWITCH CURRENT (A) SWITCH CURRENT (A) RLIM (Ω) 1107 G03 1107 G01 1107 G02
Quiescent Current Quiescent Current Oscillator Frequency
400 400 100 T 380 A = 25°C 90 350 360 80 µA) µA) 340 300 70 320 250 300 60 280 50 200 FREQUENCY (kHz) 260 40 QUIESCENT CURRENT ( QUIESCENT CURRENT ( 240 150 30 220 100 200 20 –55 –35 –15 5 25 45 65 85 105 125 0 3 6 9 12 15 18 21 24 27 30 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 1107 G06 1107 G07 1107 G05
Switch ON Time Duty Cycle Switch ON Time Step-Up Mode Step-Up Mode Step-Down Mode
16 85 13 15 80 12 14 75 11 µs) 13 µs) 70 10 12 11 65 9 10 60 8 DUTY CYCLE (%) SWITCH ON TIME ( 9 SWITCH ON TIME ( 55 7 8 50 6 7 6 45 5 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1107 G08 1107 G09 1107 G10 1107fa 4