Datasheet LT8607, LT8607B (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 42V, 750mA Synchronous Step-Down Regulator with 2.5μA Quiescent Current |
| 页数 / 页 | 22 / 4 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 修订版 | C |
| 文件格式/大小 | PDF / 1.3 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency (5V Output, Burst Mode
文件文字版本
LT8607/LT8607B
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency (5V Output, Burst Mode Efficiency (5V Output, Burst Mode Efficiency (3.3V Output, Operation) Operation) Burst Mode Operation)
100 100 100 95 VIN = 12V 90 95 V 90 IN = 12V 80 90 VIN = 12V 85 70 85 VIN = 24V 80 60 80 VIN = 24V V 75 50 IN = 24V 75 70 40 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 65 30 65 60 SYNC = 0V OR LT8607 DFN 20 SYNC = 0V OR LT8607 DFN 60 SYNC = 0V OR LT8607 DFN L = 4.7µH 55 L = 4.7µH 10 L = 2.2µH 55 fSW = 2MHz fSW = 2MHz fSW = 2MHz 50 0 50 0 125 250 375 500 625 750 0.001 0.01 0.1 1 10 100 900 0 125 250 375 500 625 750 IOUT (mA) IOUT (mA) IOUT (mA) 8607 G01 8607 G02 8607 G03
Efficiency (3.3V Output, Burst Mode Operation) FB Voltage Load Regulation
100 780 0.25 90 0.20 80 779 0.15 70 VIN = 12V 0.10 TAGE (mV) (%) 60 778 0.05 OUT 50 0.00 VIN = 24V TION VOL 40 777 –0.05 EFFICIENCY (%) 30 CHANGE IN V –0.10 20 SYNC = 0V OR LT8607 DFN 776 FB REGULA –0.15 L = 2.2µH 10 –0.20 fSW = 2MHz 0 775 –0.25 0.001 0.01 0.1 1 10 100 900 –50 –10 30 70 110 150 0 125 250 375 500 625 750 IOUT (mA) TEMPERATURE (°C) OUTPUT CURRENT (mA) 8607 G04 8607 G05 8607 G06
No-Load Supply Current No Load Supply Current vs Line Regulation (3.3V Output Switching) Temperature (Not Switching)
0.20 4.50 3.3 L = 2.2µH SYNC = 0V OR LT8607 DFN 0.15 4.25 SYNC = 0V OR LT8607 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 –0.10 INPUT CURRENT (µA) 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) 8607 G07 8607 G08 8607 G09 Rev. C 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings 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. Efficiency (5V Output, Burst Mode Efficiency (5V Output, Burst Mode Efficiency (3.3V Output, Operation) Operation) Burst Mode Operation)
100 100 100 95 VIN = 12V 90 95 V 90 IN = 12V 80 90 VIN = 12V 85 70 85 VIN = 24V 80 60 80 VIN = 24V V 75 50 IN = 24V 75 70 40 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 65 30 65 60 SYNC = 0V OR LT8607 DFN 20 SYNC = 0V OR LT8607 DFN 60 SYNC = 0V OR LT8607 DFN L = 4.7µH 55 L = 4.7µH 10 L = 2.2µH 55 fSW = 2MHz fSW = 2MHz fSW = 2MHz 50 0 50 0 125 250 375 500 625 750 0.001 0.01 0.1 1 10 100 900 0 125 250 375 500 625 750 IOUT (mA) IOUT (mA) IOUT (mA) 8607 G01 8607 G02 8607 G03
Efficiency (3.3V Output, Burst Mode Operation) FB Voltage Load Regulation
100 780 0.25 90 0.20 80 779 0.15 70 VIN = 12V 0.10 TAGE (mV) (%) 60 778 0.05 OUT 50 0.00 VIN = 24V TION VOL 40 777 –0.05 EFFICIENCY (%) 30 CHANGE IN V –0.10 20 SYNC = 0V OR LT8607 DFN 776 FB REGULA –0.15 L = 2.2µH 10 –0.20 fSW = 2MHz 0 775 –0.25 0.001 0.01 0.1 1 10 100 900 –50 –10 30 70 110 150 0 125 250 375 500 625 750 IOUT (mA) TEMPERATURE (°C) OUTPUT CURRENT (mA) 8607 G04 8607 G05 8607 G06
No-Load Supply Current No Load Supply Current vs Line Regulation (3.3V Output Switching) Temperature (Not Switching)
0.20 4.50 3.3 L = 2.2µH SYNC = 0V OR LT8607 DFN 0.15 4.25 SYNC = 0V OR LT8607 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 –0.10 INPUT CURRENT (µA) 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) 8607 G07 8607 G08 8607 G09 Rev. C 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts