Datasheet LT8620 (Analog Devices) - 4
| Hersteller | Analog Devices |
| Beschreibung | 65V, 2A Synchronous Step-Down Regulator with 2.5μA Quiescent Current |
| Seiten / Seite | 26 / 4 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| Dateiformat / Größe | PDF / 599 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency at 5VOUT. Efficiency at 3.3VOUT
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LT8620
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency at 5VOUT Efficiency at 3.3VOUT Efficiency at 5VOUT
100 100 100 95 95 90 90 90 80 85 85 70 80 80 60 75 75 50 70 70 40 f EFFICIENCY (%) fSW = 700kHz EFFICIENCY (%) fSW = 700kHz EFFICIENCY (%) SW = 700kHz 65 L = IHLP2525CZ-01, 4.7µH 65 L = IHLP2525CZ-01, 4.7µH 30 L = IHLP2525CZ-01, 4.7µH V V V 60 IN = 12V IN = 12V IN = 12V V 60 20 IN = 24V VIN = 24V VIN = 24V 55 VIN = 36V 55 VIN = 36V 10 VIN = 36V VIN = 48V VIN = 48V VIN = 48V 50 50 0 0 0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0 0 0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0 0.01 0.1 1.0 10 100 1000 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (mA) 8620 G01 8620 G02 8620 G03
Efficiency at 3.3VOUT Efficiency vs Frequency at 1A Reference Voltage
100 94 0.979 VOUT = 3.3V 90 L = IHLP2525CZ-01, 4.7µH 92 0.977 80 0.975 70 90 0.973 60 88 0.971 50 0.969 40 86 EFFICIENCY (%) fSW = 700kHz EFFICIENCY (%) 30 L = IHLP2525CZ-01, 4.7µH 0.967 84 V REFERENCE VOLTAGE (V) 20 IN = 12V 0.965 VIN = 24V 82 10 VIN = 36V VIN = 12V 0.963 VIN = 48V VIN = 24V 0 80 0.961 0.01 0.1 1.0 10 100 1000 0.25 0.75 1.25 1.75 2.25 –50 –25 0 25 50 75 100 125 150 LOAD CURRENT (mA) SWITCHING FREQUENCY (MHz) TEMPERATURE (°C) 8620 G04 8620 G05 8620 G06
EN Pin Thresholds Load Regulation Line Regulation
1.03 0.15 0.12 VOUT = 5V VOUT = 5V 1.02 V 0.10 IN = 12V ILOAD = 1A 0.1 0.08 1.01 EN RISING 0.06 0.05 (%) 1.00 (%) 0.04 OUT OUT 0.99 0 0.02 0.98 0.00 EN THRESHOLD (V) –0.05 CHANGE IN V CHANGE IN V –0.02 0.97 EN FALLING –0.04 –0.1 0.96 –0.06 0.95 –0.15 –0.08 –50 –25 0 25 50 75 100 125 150 0 0.5 1 1.5 2 5 15 25 35 45 55 65 TEMPERATURE (°C) LOAD CURRENT (A) INPUT VOLTAGE (V) 8620 G07 8620 G08 8620 G09 8620fa 4 For more information www.linear.com/LT8620 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency at 5VOUT Efficiency at 3.3VOUT Efficiency at 5VOUT
100 100 100 95 95 90 90 90 80 85 85 70 80 80 60 75 75 50 70 70 40 f EFFICIENCY (%) fSW = 700kHz EFFICIENCY (%) fSW = 700kHz EFFICIENCY (%) SW = 700kHz 65 L = IHLP2525CZ-01, 4.7µH 65 L = IHLP2525CZ-01, 4.7µH 30 L = IHLP2525CZ-01, 4.7µH V V V 60 IN = 12V IN = 12V IN = 12V V 60 20 IN = 24V VIN = 24V VIN = 24V 55 VIN = 36V 55 VIN = 36V 10 VIN = 36V VIN = 48V VIN = 48V VIN = 48V 50 50 0 0 0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0 0 0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0 0.01 0.1 1.0 10 100 1000 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (mA) 8620 G01 8620 G02 8620 G03
Efficiency at 3.3VOUT Efficiency vs Frequency at 1A Reference Voltage
100 94 0.979 VOUT = 3.3V 90 L = IHLP2525CZ-01, 4.7µH 92 0.977 80 0.975 70 90 0.973 60 88 0.971 50 0.969 40 86 EFFICIENCY (%) fSW = 700kHz EFFICIENCY (%) 30 L = IHLP2525CZ-01, 4.7µH 0.967 84 V REFERENCE VOLTAGE (V) 20 IN = 12V 0.965 VIN = 24V 82 10 VIN = 36V VIN = 12V 0.963 VIN = 48V VIN = 24V 0 80 0.961 0.01 0.1 1.0 10 100 1000 0.25 0.75 1.25 1.75 2.25 –50 –25 0 25 50 75 100 125 150 LOAD CURRENT (mA) SWITCHING FREQUENCY (MHz) TEMPERATURE (°C) 8620 G04 8620 G05 8620 G06
EN Pin Thresholds Load Regulation Line Regulation
1.03 0.15 0.12 VOUT = 5V VOUT = 5V 1.02 V 0.10 IN = 12V ILOAD = 1A 0.1 0.08 1.01 EN RISING 0.06 0.05 (%) 1.00 (%) 0.04 OUT OUT 0.99 0 0.02 0.98 0.00 EN THRESHOLD (V) –0.05 CHANGE IN V CHANGE IN V –0.02 0.97 EN FALLING –0.04 –0.1 0.96 –0.06 0.95 –0.15 –0.08 –50 –25 0 25 50 75 100 125 150 0 0.5 1 1.5 2 5 15 25 35 45 55 65 TEMPERATURE (°C) LOAD CURRENT (A) INPUT VOLTAGE (V) 8620 G07 8620 G08 8620 G09 8620fa 4 For more information www.linear.com/LT8620 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts