Datasheet LT8606, LT8606B (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 42V, 350mA Synchronous Step-Down Regulator with 2.5μA Quiescent Current |
| 页数 / 页 | 24 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 修订版 | C |
| 文件格式/大小 | PDF / 1.8 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. No-Load Supply Current. Line Regulation
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LT8606/LT8606B
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. No-Load Supply Current No-Load Supply Current Line Regulation (3.3V Output Switching) vs Temperature (Not Switching)
0.20 4.50 3.3 L = 10µH SYNC = 0V OR LT8606 DFN 0.15 4.25 SYNC = 0V OR LT8606 DFN 3.1 4.00 2.9 0.10 3.75 2.7 (%) 0.05 OUT 3.50 2.5 0.00 (µA) 3.25 2.3 I IN –0.05 3.00 2.1 CHANGE IN V 2.75 1.9 INPUT CURRENT (µA) –0.10 2.50 1.7 –0.15 2.25 1.5 –0.20 2.00 1.3 2 10 18 26 34 42 2 10 18 26 34 42 –50 –10 30 70 110 150 INPUT VOLTAGE (V) INPUT VOLTAGE (V) TEMPERATURE (°C) 8606 G07 8606 G08 8606 G09
Top FET Current Limit Top FET Current Limit vs Duty Cycle vs Temperature
1.10 1.10 DUTY CYCLE = 0 1.00 1.05 0.90 1.00 0.80 0.95 TOP FET CURRENT LIMIT (A) 0.70 TOP FET CURRENT LIMIT (A) 0.60 0.90 0 20 40 60 80 100 –50 –10 30 70 110 150 DUTY CYCLE (%) TEMPERATURE (°C) 8606 G10 8606 G11
Switch Drop vs Temperature Switch Drop vs Switch Current
250 200 SWITCH CURRENT = 350mA 175 200 150 150 125 100 100 75 SWITCH DROP (mV) SWITCH DROP (mV) 50 50 TOP SW 25 TOP SW BOT SW BOT SW 0 0 –50 –30 –10 10 30 50 70 90 110 130 150 0 50 100 150 200 250 300 350 TEMPERATURE (°C) SWITCH CURRENT (mA) 8606 G12 8606 G13 Rev C For more information www.analog.com 5 Document Outline FEATURES DESCRIPTION APPLICATIONS 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 REVISION HISTORY TYPICAL APPLICATION RELATED PARTS
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. No-Load Supply Current No-Load Supply Current Line Regulation (3.3V Output Switching) vs Temperature (Not Switching)
0.20 4.50 3.3 L = 10µH SYNC = 0V OR LT8606 DFN 0.15 4.25 SYNC = 0V OR LT8606 DFN 3.1 4.00 2.9 0.10 3.75 2.7 (%) 0.05 OUT 3.50 2.5 0.00 (µA) 3.25 2.3 I IN –0.05 3.00 2.1 CHANGE IN V 2.75 1.9 INPUT CURRENT (µA) –0.10 2.50 1.7 –0.15 2.25 1.5 –0.20 2.00 1.3 2 10 18 26 34 42 2 10 18 26 34 42 –50 –10 30 70 110 150 INPUT VOLTAGE (V) INPUT VOLTAGE (V) TEMPERATURE (°C) 8606 G07 8606 G08 8606 G09
Top FET Current Limit Top FET Current Limit vs Duty Cycle vs Temperature
1.10 1.10 DUTY CYCLE = 0 1.00 1.05 0.90 1.00 0.80 0.95 TOP FET CURRENT LIMIT (A) 0.70 TOP FET CURRENT LIMIT (A) 0.60 0.90 0 20 40 60 80 100 –50 –10 30 70 110 150 DUTY CYCLE (%) TEMPERATURE (°C) 8606 G10 8606 G11
Switch Drop vs Temperature Switch Drop vs Switch Current
250 200 SWITCH CURRENT = 350mA 175 200 150 150 125 100 100 75 SWITCH DROP (mV) SWITCH DROP (mV) 50 50 TOP SW 25 TOP SW BOT SW BOT SW 0 0 –50 –30 –10 10 30 50 70 90 110 130 150 0 50 100 150 200 250 300 350 TEMPERATURE (°C) SWITCH CURRENT (mA) 8606 G12 8606 G13 Rev C For more information www.analog.com 5 Document Outline FEATURES DESCRIPTION APPLICATIONS 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 REVISION HISTORY TYPICAL APPLICATION RELATED PARTS