Datasheet LTC3630A (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | High Efficiency, 76V 500mA Synchronous Step-Down Converter |
| 页数 / 页 | 26 / 6 — Typical perForMance characTerisTics. Quiescent VIN Supply Current. Switch … |
| 文件格式/大小 | PDF / 347 Kb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics. Quiescent VIN Supply Current. Switch On-Resistance. vs Temperature. vs Input Voltage
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LTC3630A
Typical perForMance characTerisTics Quiescent VIN Supply Current Switch On-Resistance Switch On-Resistance vs Temperature vs Input Voltage vs Temperature
20 2.0 1.6 VIN = 12V VIN = 12V 1.8 1.4 16 1.6 1.2 1.4 TOP SLEEP 12 1.2 1.0 TOP 1.0 0.8 BOTTOM 8 0.8 0.6 SHUTDOWN SUPPLY CURRENT (µA) 0.6 BOTTOM V IN 0.4 4 SWITCH ON-RESISTANCE (Ω) 0.4 SWITCH ON-RESISTANCE (Ω) 0.2 0.2 0 0 0 –55 –25 5 35 65 95 125 155 0 10 20 30 40 50 60 70 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3630a G16 3630a G17 3630a G18
Switch Leakage Current RUN Comparator Threshold vs Temperature Voltage vs Temperature Operating Waveforms
14 1.30 VIN = 65V SWITCH 12 VOLTAGE 1.25 10 50V/DIV RISING 8 OUTPUT 1.20 VOLTAGE 6 50mV/DIV 4 1.15 INDUCTOR SW = 65V 2 FALLING CURRENT 500mA/DIV 0 1.10 –2 SWITCH LEAKAGE CURRENT (µA) 3630a G21 SW = 0V 1.05 VIN = 76V 10µs/DIV –4 RUN COMPARATOR THRESHOLD (V) VOUT = 5V I –6 1.00 LOAD = 400mA FIGURE 13 CIRCUIT –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) TEMPERATURE (°C) 3630a G19 3630a G20 3630afc 6 For more information www.linear.com/LTC3630A 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
Typical perForMance characTerisTics Quiescent VIN Supply Current Switch On-Resistance Switch On-Resistance vs Temperature vs Input Voltage vs Temperature
20 2.0 1.6 VIN = 12V VIN = 12V 1.8 1.4 16 1.6 1.2 1.4 TOP SLEEP 12 1.2 1.0 TOP 1.0 0.8 BOTTOM 8 0.8 0.6 SHUTDOWN SUPPLY CURRENT (µA) 0.6 BOTTOM V IN 0.4 4 SWITCH ON-RESISTANCE (Ω) 0.4 SWITCH ON-RESISTANCE (Ω) 0.2 0.2 0 0 0 –55 –25 5 35 65 95 125 155 0 10 20 30 40 50 60 70 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3630a G16 3630a G17 3630a G18
Switch Leakage Current RUN Comparator Threshold vs Temperature Voltage vs Temperature Operating Waveforms
14 1.30 VIN = 65V SWITCH 12 VOLTAGE 1.25 10 50V/DIV RISING 8 OUTPUT 1.20 VOLTAGE 6 50mV/DIV 4 1.15 INDUCTOR SW = 65V 2 FALLING CURRENT 500mA/DIV 0 1.10 –2 SWITCH LEAKAGE CURRENT (µA) 3630a G21 SW = 0V 1.05 VIN = 76V 10µs/DIV –4 RUN COMPARATOR THRESHOLD (V) VOUT = 5V I –6 1.00 LOAD = 400mA FIGURE 13 CIRCUIT –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) TEMPERATURE (°C) 3630a G19 3630a G20 3630afc 6 For more information www.linear.com/LTC3630A 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