Datasheet LT3470A (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | Micropower Buck Regulator with Integrated Boost and Catch Diodes |
| 页数 / 页 | 20 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. FB … |
| 修订版 | C |
| 文件格式/大小 | PDF / 747 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. FB Bias Current (VFB = 1V)
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LT3470A
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. FB Bias Current (VFB = 1V) FB Bias Current (VFB = 0V) vs Temperature vs Temperature
60 120 50 100 40 80 30 60 FB CURRENT (nA) 20 FB CURRENT (µA) 40 10 20 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3470a G08 3470a G09
Switch VCESAT (ISW = 100mA) Boost Diode VF (IF = 50mA) vs Temperature vs Temperature
300 0.8 0.7 250 0.6 200 (mV) (V) F 0.5 CESAT 150 0.4 0.3 100 SCHOTTKY V SWITCH V 0.2 50 0.1 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3470a G10 3470a G11
Catch Diode VF (IF = 100mA) Diode Leakage (VR = 36V) vs Temperature vs Temperature
0.7 60 55 CATCH BOOST 0.6 50 45 0.5 40 (V) F 0.4 35 30 0.3 25 SCHOTTKY V 20 0.2 15 0.1 SCHOTTKY DIODE LEAKAGE (mA) 10 5 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3470a G12 3470a G13 Rev. C For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History related parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. FB Bias Current (VFB = 1V) FB Bias Current (VFB = 0V) vs Temperature vs Temperature
60 120 50 100 40 80 30 60 FB CURRENT (nA) 20 FB CURRENT (µA) 40 10 20 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3470a G08 3470a G09
Switch VCESAT (ISW = 100mA) Boost Diode VF (IF = 50mA) vs Temperature vs Temperature
300 0.8 0.7 250 0.6 200 (mV) (V) F 0.5 CESAT 150 0.4 0.3 100 SCHOTTKY V SWITCH V 0.2 50 0.1 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3470a G10 3470a G11
Catch Diode VF (IF = 100mA) Diode Leakage (VR = 36V) vs Temperature vs Temperature
0.7 60 55 CATCH BOOST 0.6 50 45 0.5 40 (V) F 0.4 35 30 0.3 25 SCHOTTKY V 20 0.2 15 0.1 SCHOTTKY DIODE LEAKAGE (mA) 10 5 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3470a G12 3470a G13 Rev. C For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History related parts