Datasheet LT3667 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | 40V 400mA Step-Down Switching Regulator with Dual Fault Protected LDOs |
| 页数 / 页 | 34 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 446 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Switching Waveforms,. Switching Waveforms, Full
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LT3667
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Switching Waveforms, Switching Waveforms, Full Burst Mode Operation Frequency Continuous Operation EN Threshold
1.0 0.9 VSW VSW 0.8 5V/DIV 5V/DIV 0.7 0.6 0.5 IL IL 100mA/DIV 200mA/DIV 0.4 0.3 V THRESHOLD VOLTAGE (V) OUT1 VOUT1 0.2 5mV/DIV 5mV/DIV ILOAD = 10mA 0.1 FRONT PAGE APPLICATION ILOAD = 400mA, FRONT PAGE APPLICATION 0 3667 G19 1µs/DIV 3667 G20 1µs/DIV –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) 3667 G21
LDOs: LDOs: EN Pin Current Typical Dropout Voltage Guaranteed Dropout Voltage
1.0 600 800 T 550 A = –50°C = TEST POINTS TA = 25°C 500 700 0.8 TA = 125°C 450 TA = 150°C 600 400 TJ = 150°C 0.6 500 350 300 400 TJ = 25°C 0.4 250 300 200 EN PIN CURRENT (µA) DROPOUT VOLTAGE (mV) 150 DROPOUT VOLTAGE (mV) 200 0.2 100 100 50 0 0 0 0 5 10 15 20 25 30 35 40 0 20 40 60 80 100 120 140 160 180 200 0 20 40 60 80 100 120 140 160 180 200 EN PIN VOLTAGE (V) OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) 3667 G22 3667 G23 3667 G24
LDOs: LDOs: LDOs: IN2, IN3 Quiescent Current 5V Quiescent Current IN2 5V Quiescent Current IN3
60 180 180 VIN1 = VEN = 12V VIN1 = VEN = 12V 160 160 50 VIN2/3 = 5V VEN = 2V, VIN1 = 0 IN2 (µA) 140 (µA) 140 V 40 OUT2/3 = 0.8V I IN2 120 IN3 120 LOAD = 5µA IN3 100 100 30 80 80 20 60 V 60 EN2/ILIM2 = 0V V QUIESCENT CURRENT (µA) EN3/ILIM3 = 0V 40 40 10 QUIESCENT CURRENT I QUIESCENT CURRENT I VIN2/3 = 5V 20 V 20 V EN2/ILIM2 = 2V EN = 0.3V VEN3/ILIM3 = 2V 0 0 0 –50 –25 0 25 50 75 100 125 150 0 5 10 15 20 25 30 35 40 45 0 5 10 15 20 25 30 35 40 45 TEMPERATURE (°C) VIN2 (V) VIN3 (V) 3667 G25 3667 G26 3667 G27 3667fb 8 For more information www.linear.com/LT3667 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Switching Waveforms, Switching Waveforms, Full Burst Mode Operation Frequency Continuous Operation EN Threshold
1.0 0.9 VSW VSW 0.8 5V/DIV 5V/DIV 0.7 0.6 0.5 IL IL 100mA/DIV 200mA/DIV 0.4 0.3 V THRESHOLD VOLTAGE (V) OUT1 VOUT1 0.2 5mV/DIV 5mV/DIV ILOAD = 10mA 0.1 FRONT PAGE APPLICATION ILOAD = 400mA, FRONT PAGE APPLICATION 0 3667 G19 1µs/DIV 3667 G20 1µs/DIV –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) 3667 G21
LDOs: LDOs: EN Pin Current Typical Dropout Voltage Guaranteed Dropout Voltage
1.0 600 800 T 550 A = –50°C = TEST POINTS TA = 25°C 500 700 0.8 TA = 125°C 450 TA = 150°C 600 400 TJ = 150°C 0.6 500 350 300 400 TJ = 25°C 0.4 250 300 200 EN PIN CURRENT (µA) DROPOUT VOLTAGE (mV) 150 DROPOUT VOLTAGE (mV) 200 0.2 100 100 50 0 0 0 0 5 10 15 20 25 30 35 40 0 20 40 60 80 100 120 140 160 180 200 0 20 40 60 80 100 120 140 160 180 200 EN PIN VOLTAGE (V) OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) 3667 G22 3667 G23 3667 G24
LDOs: LDOs: LDOs: IN2, IN3 Quiescent Current 5V Quiescent Current IN2 5V Quiescent Current IN3
60 180 180 VIN1 = VEN = 12V VIN1 = VEN = 12V 160 160 50 VIN2/3 = 5V VEN = 2V, VIN1 = 0 IN2 (µA) 140 (µA) 140 V 40 OUT2/3 = 0.8V I IN2 120 IN3 120 LOAD = 5µA IN3 100 100 30 80 80 20 60 V 60 EN2/ILIM2 = 0V V QUIESCENT CURRENT (µA) EN3/ILIM3 = 0V 40 40 10 QUIESCENT CURRENT I QUIESCENT CURRENT I VIN2/3 = 5V 20 V 20 V EN2/ILIM2 = 2V EN = 0.3V VEN3/ILIM3 = 2V 0 0 0 –50 –25 0 25 50 75 100 125 150 0 5 10 15 20 25 30 35 40 45 0 5 10 15 20 25 30 35 40 45 TEMPERATURE (°C) VIN2 (V) VIN3 (V) 3667 G25 3667 G26 3667 G27 3667fb 8 For more information www.linear.com/LT3667 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Revision History Typical Application Related Parts