Datasheet LTC3568 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 1.8A, 4MHz, Synchronous Step-Down DC/DC Converter |
| 页数 / 页 | 18 / 5 — Frequency Variation. vs Temperature. Efficiency vs Frequency. … |
| 文件格式/大小 | PDF / 313 Kb |
| 文件语言 | 英语 |
Frequency Variation. vs Temperature. Efficiency vs Frequency. RDS(ON) vs VIN. RDS(ON) vs Temperature
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文件文字版本
LTC3568 Typical perForMance characTerisTics
Frequency Variation vs Temperature Efficiency vs Frequency
10 100 V 8 IN = 3.3V VOUT = 2.5V 6 IOUT = 500mA TA = 25°C 4 95 2 0 –2 EFFICIENCY (%) –4 90 REFERENCE VARIATION (%) –6 –8 –10 85 –50 –25 0 25 50 75 100 125 0 1 2 3 4 TEMPERATURE (°C) FREQUENCY (MHz) 3568 G10 3568 G11
RDS(ON) vs VIN RDS(ON) vs Temperature
120 160 TA = 25°C 150 115 140 VIN = 2.5V 130 110 SYNCHRONOUS SWITCH V 120 IN = 3.3V (mΩ) 105 110 R DS(ON) 100 R DS(ON) MAIN SWITCH V 100 IN = 5V 90 80 95 70 MAIN SWITCH SYNCHRONOUS SWITCH 90 60 2.5 3 3.5 4 4.5 5 5.5 6 –50 –25 0 25 50 75 100 125 VIN (V) TEMPERATURE (°C) 3568 G12 3568 G13 3568fa Document Outline Features Applications Description 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
Frequency Variation vs Temperature Efficiency vs Frequency
10 100 V 8 IN = 3.3V VOUT = 2.5V 6 IOUT = 500mA TA = 25°C 4 95 2 0 –2 EFFICIENCY (%) –4 90 REFERENCE VARIATION (%) –6 –8 –10 85 –50 –25 0 25 50 75 100 125 0 1 2 3 4 TEMPERATURE (°C) FREQUENCY (MHz) 3568 G10 3568 G11
RDS(ON) vs VIN RDS(ON) vs Temperature
120 160 TA = 25°C 150 115 140 VIN = 2.5V 130 110 SYNCHRONOUS SWITCH V 120 IN = 3.3V (mΩ) 105 110 R DS(ON) 100 R DS(ON) MAIN SWITCH V 100 IN = 5V 90 80 95 70 MAIN SWITCH SYNCHRONOUS SWITCH 90 60 2.5 3 3.5 4 4.5 5 5.5 6 –50 –25 0 25 50 75 100 125 VIN (V) TEMPERATURE (°C) 3568 G12 3568 G13 3568fa Document Outline Features Applications Description 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