Datasheet LT8607, LT8607B (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | 42V, 750mA Synchronous Step-Down Regulator with 2.5μA Quiescent Current |
| 页数 / 页 | 22 / 6 — 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. Minimum Load to Full. Frequency (SYNC Float to 1.9V)
文件文字版本
LT8607/LT8607B
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Minimum Load to Full Frequency (SYNC Float to 1.9V) Soft-Start Tracking (MSOP Package) or LT8607B DFN Frequency Foldback (MSOP Package)
150 2500 1.0 L = 2.2µH SYNC = 0V OR LT8607 DFN V 2250 0.9 125 IN = 12V VOUT = 3.3V 2000 0.8 RT = 18.2kΩ 1750 0.7 100 1500 0.6 75 1250 TAGE (V) 0.5 1000 0.4 50 FB VOL FREQUENCY (kHz) 750 0.3 OUTPUT CURRENT (mA) 500 0.2 25 250 0.1 0 0 0 0 5 10 15 20 25 30 35 40 45 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 0.1 0.2 0.4 0.5 0.6 0.7 0.8 1.0 1.1 1.2 INPUT VOLTAGE (V) FB VOLTAGE (V) SS VOLTAGE (V) 8607 G19 8607 G20 8607 G21
Soft-Start Current vs Temperature (MSOP Package) VIN UVLO vs Temperature
2.5 3.25 2.4 2.3 3.00 2.2 2.1 2.75 2.0 T CURRENT (µA) UVLO (V) AR 1.9 2.50 V IN T-ST 1.8 SOF 1.7 2.25 1.6 1.5 2.00 –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) 8607 G22 8607 G23
Start-Up Dropout Start-Up Dropout
7 7 7 7 RLOAD = 50Ω RLOAD = 6.66Ω 6 6 6 6 OUTPUT VOL OUTPUT VOL 5 5 5 5 4 4 4 TAGE (V) 4 TAGE (V) T T 3 3 AGE (V) 3 3 AGE (V) INPUT VOL 2 2 INPUT VOL 2 2 VIN VIN 1 VOUT 1 V 1 OUT 1 0 0 0 0 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 INPUT VOLTAGE (V) INPUT VOLTAGE (V) 8607 G24 8607 G25 Rev. C 6 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. Minimum Load to Full Frequency (SYNC Float to 1.9V) Soft-Start Tracking (MSOP Package) or LT8607B DFN Frequency Foldback (MSOP Package)
150 2500 1.0 L = 2.2µH SYNC = 0V OR LT8607 DFN V 2250 0.9 125 IN = 12V VOUT = 3.3V 2000 0.8 RT = 18.2kΩ 1750 0.7 100 1500 0.6 75 1250 TAGE (V) 0.5 1000 0.4 50 FB VOL FREQUENCY (kHz) 750 0.3 OUTPUT CURRENT (mA) 500 0.2 25 250 0.1 0 0 0 0 5 10 15 20 25 30 35 40 45 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 0.1 0.2 0.4 0.5 0.6 0.7 0.8 1.0 1.1 1.2 INPUT VOLTAGE (V) FB VOLTAGE (V) SS VOLTAGE (V) 8607 G19 8607 G20 8607 G21
Soft-Start Current vs Temperature (MSOP Package) VIN UVLO vs Temperature
2.5 3.25 2.4 2.3 3.00 2.2 2.1 2.75 2.0 T CURRENT (µA) UVLO (V) AR 1.9 2.50 V IN T-ST 1.8 SOF 1.7 2.25 1.6 1.5 2.00 –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) 8607 G22 8607 G23
Start-Up Dropout Start-Up Dropout
7 7 7 7 RLOAD = 50Ω RLOAD = 6.66Ω 6 6 6 6 OUTPUT VOL OUTPUT VOL 5 5 5 5 4 4 4 TAGE (V) 4 TAGE (V) T T 3 3 AGE (V) 3 3 AGE (V) INPUT VOL 2 2 INPUT VOL 2 2 VIN VIN 1 VOUT 1 V 1 OUT 1 0 0 0 0 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 INPUT VOLTAGE (V) INPUT VOLTAGE (V) 8607 G24 8607 G25 Rev. C 6 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