Datasheet LT8609, LT8609A, LT8609B (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | 42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5µA Quiescent Current |
| 页数 / 页 | 26 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Switch Drop vs Temperature. Switch … |
| 文件格式/大小 | PDF / 1.5 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Switch Drop vs Temperature. Switch Drop vs T. Switch Drop vs Switch Current
文件文字版本
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 80 20 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
800 2.005 700 2.000 600 1.995 500 TAGE (mV) 400 1.990 300 1.985 DROPOUT VOL 200 SWITHCING FREQUENCY (MHz) 1.980 100 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 8609fg For more information www.linear.com/LT8609 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
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 80 20 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
800 2.005 700 2.000 600 1.995 500 TAGE (mV) 400 1.990 300 1.985 DROPOUT VOL 200 SWITHCING FREQUENCY (MHz) 1.980 100 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 8609fg For more information www.linear.com/LT8609 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