Datasheet LT8609, LT8609A, LT8609B (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | 42V, 3A Synchronous Step-Down Regulator with 2.5µA Quiescent Current |
| Pages / Page | 26 / 7 — Switch Drop vs Temperature. Switch Drop vs T. Switch Drop vs Switch … |
| Revision | H |
| File Format / Size | PDF / 327 Kb |
| Document Language | English |
Switch Drop vs Temperature. Switch Drop vs T. Switch Drop vs Switch Current. Minimum On-Time. Minimum Off-Time. vs Temperature
Text Version of Document
LT8609/LT8609A/LT8609B TYPICAL PERFORMANCE CHARACTERISTICS
Switch Drop vs Temperature Switch Drop vs T Switch Drop vs Switch Current
350 800 SWITCH CURRENT = 1A 300 700 600 250 500 200 400 150 300 SWITCH DROP (mV) 100 SWITCH DROP (mV) 200 50 100 TOP SW BOT SW TOP SW BOT SW 0 0 –50 –30 –10 10 30 50 70 90 110 130 150 0 0.5 1 1.5 2 2.5 3 TEMPERATURE (°C) SWITCH CURRENT (A) 8609 G16 8609 G17
Minimum On-Time Minimum Off-Time vs Temperature Minimum On-Time Vs Temperature vs Temperature Minimum Off–Time Vs Temperature
70 150 VIN = 6V 140 ILOAD = 1A 60 130 50 120 110 40 100 30 90 20 80 MINIMUM ON-TIME (ns) MINIMUM OFF–TIME (ns) 70 10 SYNC = 2V, 1.5A OUT 60 SYNC = 0V, 1.5A OUT 0 50 –50 –30 –10 10 30 50 70 90 110 130 150 –50 –30 –10 10 30 50 70 90 110 130 150 TEMPERATURE (°C) TEMPERATURE (°C) 8609 G18 8609 G19
Switching Frequency Dropout Voltage vs Load Current vs Temperature Switching Frequency Vs Temperature
1000 2.005 L = XFL4020–222MEC 2.000 800 1.995 600 TAGE (mV) 1.990 400 1.985 DROPOUT VOL 200 SWITHCING FREQUENCY (MHz) 1.980 RT = 18.2kΩ 0 1.975 0 0.5 1 1.5 2 2.5 3 –50 –30 –10 10 30 50 70 90 110 130 150 LOAD CURRENT (A) TEMPERATURE (°C) 8609 G20 8609 G21 Rev. H For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
Switch Drop vs Temperature Switch Drop vs T Switch Drop vs Switch Current
350 800 SWITCH CURRENT = 1A 300 700 600 250 500 200 400 150 300 SWITCH DROP (mV) 100 SWITCH DROP (mV) 200 50 100 TOP SW BOT SW TOP SW BOT SW 0 0 –50 –30 –10 10 30 50 70 90 110 130 150 0 0.5 1 1.5 2 2.5 3 TEMPERATURE (°C) SWITCH CURRENT (A) 8609 G16 8609 G17
Minimum On-Time Minimum Off-Time vs Temperature Minimum On-Time Vs Temperature vs Temperature Minimum Off–Time Vs Temperature
70 150 VIN = 6V 140 ILOAD = 1A 60 130 50 120 110 40 100 30 90 20 80 MINIMUM ON-TIME (ns) MINIMUM OFF–TIME (ns) 70 10 SYNC = 2V, 1.5A OUT 60 SYNC = 0V, 1.5A OUT 0 50 –50 –30 –10 10 30 50 70 90 110 130 150 –50 –30 –10 10 30 50 70 90 110 130 150 TEMPERATURE (°C) TEMPERATURE (°C) 8609 G18 8609 G19
Switching Frequency Dropout Voltage vs Load Current vs Temperature Switching Frequency Vs Temperature
1000 2.005 L = XFL4020–222MEC 2.000 800 1.995 600 TAGE (mV) 1.990 400 1.985 DROPOUT VOL 200 SWITHCING FREQUENCY (MHz) 1.980 RT = 18.2kΩ 0 1.975 0 0.5 1 1.5 2 2.5 3 –50 –30 –10 10 30 50 70 90 110 130 150 LOAD CURRENT (A) TEMPERATURE (°C) 8609 G20 8609 G21 Rev. H For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
