Datasheet LT8616 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | Dual 42V Synchronous Monolithic Step-Down Regulator with 6.5μA Quiescent Current |
| Pages / Page | 26 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency at 5VOUT. Efficiency vs … |
| File Format / Size | PDF / 444 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency at 5VOUT. Efficiency vs Frequency. Efficiency at 3.3VOUT
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LT8616
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency at 5VOUT Efficiency at 5VOUT Efficiency vs Frequency
100 100 95 fSW = 700kHz fSW = 700kHz VIN1 = VIN2 = 12V 98 95 94 90 96 85 93 94 80 92 75 92 70 91 90 65 90 88 60 89 EFFICIENCY (%) EFFICIENCY (%) 55 EFFICIENCY (%) 86 50 88 CH1, 12V CH1, 12V 84 IN 45 IN CH1, 24V 87 IN CH1, 24V 40 IN 82 CH2, 12VIN CH2, 12VIN 86 CH1, 5V, 1A CH2, 24V 35 IN CH2, 24VIN CH2, 3.3V, 1.5A 80 30 85 0 0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0 2.25 2.5 0.01 0.1 1 10 100 1000 0.2 0.6 1.0 1.4 1.8 2.2 2.6 3.0 LOAD (A) LOAD (mA) FREQUENCY (MHz) 8616 G01 8616 G02 8616 G03
Efficiency at 3.3VOUT Efficiency at 3.3VOUT No Load Supply Current
100 100 10 fSW = 700kHz fSW = 700kHz 98 95 9 90 96 85 8 94 80 7 75 92 70 6 90 65 5 88 60 4 EFFICIENCY (%) EFFICIENCY (%) 55 86 50 INPUT CURRENT (µA) 3 CH1, 12V CH1, 12V 84 IN 45 IN CH1, 24V 2 IN CH1, 24V 40 IN 82 CH2, 12VIN CH2, 12VIN 1 VOUT1 = 3.3V CH2, 24VIN 35 CH2, 24VIN VOUT2 = 5V 80 30 0 0 0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0 2.25 2.5 0.01 0.1 1 10 100 1000 0 5 10 15 20 25 30 35 40 LOAD (A) LOAD (mA) VIN (V) 8616 G04 8616 G05 8616 G06
BIAS Current No Load Supply Current vs Switching Frequency EN/UV Threshold
30 18 1.1 VIN1 = VIN2 = 12V VOUT1 = 5V 16 1.08 25 VOUT2 = 3.3V IN REGULATION 14 1.06 20 12 1.04 10 1.02 15 8 1.0 Y CURRENT (µA) 10 6 EN THRESHOLD (V) 0.98 SUPPL BIAS CURRENT (mA) VIN1 = VIN2 = 12V 4 VOUT1 = 5V 0.96 5 LOAD1 = 1A 2 VOUT2 = 3.3V 0.94 EN RISING LOAD2 = 1A EN FALLING 0 0 0.92 –50 –25 0 25 50 75 100 125 150 0 0.5 1.0 1.5 2.0 2.5 3.0 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) FREQUENCY (MHz) TEMPERATURE (°C) 8616 G07 8616 G08 8616 G09 8616fa For more information www.linear.com/LT8616 5
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency at 5VOUT Efficiency at 5VOUT Efficiency vs Frequency
100 100 95 fSW = 700kHz fSW = 700kHz VIN1 = VIN2 = 12V 98 95 94 90 96 85 93 94 80 92 75 92 70 91 90 65 90 88 60 89 EFFICIENCY (%) EFFICIENCY (%) 55 EFFICIENCY (%) 86 50 88 CH1, 12V CH1, 12V 84 IN 45 IN CH1, 24V 87 IN CH1, 24V 40 IN 82 CH2, 12VIN CH2, 12VIN 86 CH1, 5V, 1A CH2, 24V 35 IN CH2, 24VIN CH2, 3.3V, 1.5A 80 30 85 0 0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0 2.25 2.5 0.01 0.1 1 10 100 1000 0.2 0.6 1.0 1.4 1.8 2.2 2.6 3.0 LOAD (A) LOAD (mA) FREQUENCY (MHz) 8616 G01 8616 G02 8616 G03
Efficiency at 3.3VOUT Efficiency at 3.3VOUT No Load Supply Current
100 100 10 fSW = 700kHz fSW = 700kHz 98 95 9 90 96 85 8 94 80 7 75 92 70 6 90 65 5 88 60 4 EFFICIENCY (%) EFFICIENCY (%) 55 86 50 INPUT CURRENT (µA) 3 CH1, 12V CH1, 12V 84 IN 45 IN CH1, 24V 2 IN CH1, 24V 40 IN 82 CH2, 12VIN CH2, 12VIN 1 VOUT1 = 3.3V CH2, 24VIN 35 CH2, 24VIN VOUT2 = 5V 80 30 0 0 0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0 2.25 2.5 0.01 0.1 1 10 100 1000 0 5 10 15 20 25 30 35 40 LOAD (A) LOAD (mA) VIN (V) 8616 G04 8616 G05 8616 G06
BIAS Current No Load Supply Current vs Switching Frequency EN/UV Threshold
30 18 1.1 VIN1 = VIN2 = 12V VOUT1 = 5V 16 1.08 25 VOUT2 = 3.3V IN REGULATION 14 1.06 20 12 1.04 10 1.02 15 8 1.0 Y CURRENT (µA) 10 6 EN THRESHOLD (V) 0.98 SUPPL BIAS CURRENT (mA) VIN1 = VIN2 = 12V 4 VOUT1 = 5V 0.96 5 LOAD1 = 1A 2 VOUT2 = 3.3V 0.94 EN RISING LOAD2 = 1A EN FALLING 0 0 0.92 –50 –25 0 25 50 75 100 125 150 0 0.5 1.0 1.5 2.0 2.5 3.0 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) FREQUENCY (MHz) TEMPERATURE (°C) 8616 G07 8616 G08 8616 G09 8616fa For more information www.linear.com/LT8616 5
