Datasheet LTC3869, LTC3869-2 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | Dual, 2-Phase Synchronous Step-Down DC/DC Controllers |
| 页数 / 页 | 44 / 7 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 687 Kb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. TK/SS Pull-Up Current. Shutdown (RUN) Threshold
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LTC3869/LTC3869-2
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. TK/SS Pull-Up Current Shutdown (RUN) Threshold vs Temperature vs Temperature
1.6 1.24 1.22 ON 1.20 1.4 1.18 1.16 1.14 1.2 TK/SS CURRENT (µA) RUN PIN THRESHOLD (V) 1.12 OFF 1.10 1.0 1.08 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3869 G17 3869 G18
Regulated Feedback Voltage Oscillator Frequency vs Temperature vs Temperature
604 900 800 602 700 VFREQ = INTVCC 600 600 598 500 VFREQ = 1.2V 400 596 FREQUENCY (kHz) 300 594 200 VFREQ = GND 592 REGULATED FEEDBACK VOLTAGE (mV) 100 590 0 –40 –15 10 35 60 85 110 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3869 G19 3869 G20
Undervoltage Lockout Threshold Oscillator Frequency (INTVCC) vs Temperature vs Input Voltage
4.1 520 3.9 RISING 3.7 510 3.5 3.3 FALLING 500 3.1 FREQUENCY (kHz) UVLO THRESHOLD (V) 2.9 490 2.7 2.5 480 –40 –20 0 20 40 60 80 100 5 10 15 20 25 30 35 40 TEMPERATURE (°C) INPUT VOLTAGE (V) 3869 G21 3869 G22 38692fb For more information www.linear.com/LTC3869 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. TK/SS Pull-Up Current Shutdown (RUN) Threshold vs Temperature vs Temperature
1.6 1.24 1.22 ON 1.20 1.4 1.18 1.16 1.14 1.2 TK/SS CURRENT (µA) RUN PIN THRESHOLD (V) 1.12 OFF 1.10 1.0 1.08 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3869 G17 3869 G18
Regulated Feedback Voltage Oscillator Frequency vs Temperature vs Temperature
604 900 800 602 700 VFREQ = INTVCC 600 600 598 500 VFREQ = 1.2V 400 596 FREQUENCY (kHz) 300 594 200 VFREQ = GND 592 REGULATED FEEDBACK VOLTAGE (mV) 100 590 0 –40 –15 10 35 60 85 110 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3869 G19 3869 G20
Undervoltage Lockout Threshold Oscillator Frequency (INTVCC) vs Temperature vs Input Voltage
4.1 520 3.9 RISING 3.7 510 3.5 3.3 FALLING 500 3.1 FREQUENCY (kHz) UVLO THRESHOLD (V) 2.9 490 2.7 2.5 480 –40 –20 0 20 40 60 80 100 5 10 15 20 25 30 35 40 TEMPERATURE (°C) INPUT VOLTAGE (V) 3869 G21 3869 G22 38692fb For more information www.linear.com/LTC3869 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts