Datasheet LTC3639 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | High Efficiency, 150V 100mA Synchronous Step-Down Regulator |
| Pages / Page | 26 / 4 — TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency vs Load Current,. VOUT = … |
| File Format / Size | PDF / 294 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency vs Load Current,. VOUT = 5V. VOUT = 3.3V. VOUT = 1.8V
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LTC3639
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current, Efficiency vs Load Current, Efficiency vs Load Current, VOUT = 5V VOUT = 3.3V VOUT = 1.8V
100 100 100 90 90 90 80 80 80 70 70 70 60 60 60 50 50 50 40 40 40 EFFICIENCY (%) ISET OPEN EFFICIENCY (%) ISET OPEN EFFICIENCY (%) ISET OPEN 30 FIGURE 13 CIRCUIT 30 FIGURE 13 CIRCUIT 30 FIGURE 13 CIRCUIT 20 VIN = 12V 20 VIN = 12V 20 VIN = 12V VIN = 36V VIN = 36V VIN = 36V 10 VIN = 72V 10 VIN = 72V 10 VIN = 72V V V V 0 IN = 150V 0 IN = 150V 0 IN = 150V 0.1 1 10 100 0.1 1 10 100 0.1 1 10 100 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 3639 G01 3639 G02 3639 G03
Efficiency vs Input Voltage, Feedback Comparator Trip RUN and OVLO Comparator VOUT = 5V Threshold vs Temperature Threshold vs Temperature
100 802 ISET OPEN 1.24 90 FIGURE 13 CIRCUIT 1.22 RISING 80 801 70 1.20 60 1.18 50 800 1.16 40 1.14 EFFICIENCY (%) 30 1.12 FALLING 20 THRESHOLD VOLTAGE (V) 799 I 1.10 LOAD = 100mA 10 ILOAD = 10mA 1.08 I RUN OR OVLO THRESHOLD VOLTAGE (V) LOAD = 1mA 0 798 1.06 0 25 50 75 100 125 150 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 VIN VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 3639 G04 3639 G05 3639 G06
Peak Current Trip Threshold Peak Current Trip Threshold Peak Current Trip Threshold vs RISET vs Temperature vs Input Voltage
250 300 300 250 I 250 200 SET OPEN ISET OPEN 200 200 150 150 R 150 ISET = 100kΩ RISET = 100kΩ 100 100 100 PEAK CURRENT (mA) PEAK CURRENT (mA) 50 50 I 50 SET = GND ISET = GND PEAK CURRENT TRIP THRESHOLD (mA) 0 0 0 0 25 50 75 100 125 150 175 200 –55 –25 5 35 65 95 125 155 0 30 60 90 120 150 RISET (kΩ) TEMPERATURE (°C) VIN VOLTAGE (V) 3639 G07 3639 G08 3639 G09 3639fc 4 For more information www.linear.com/LTC3639 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 Efficiency vs Load Current, Efficiency vs Load Current, Efficiency vs Load Current, VOUT = 5V VOUT = 3.3V VOUT = 1.8V
100 100 100 90 90 90 80 80 80 70 70 70 60 60 60 50 50 50 40 40 40 EFFICIENCY (%) ISET OPEN EFFICIENCY (%) ISET OPEN EFFICIENCY (%) ISET OPEN 30 FIGURE 13 CIRCUIT 30 FIGURE 13 CIRCUIT 30 FIGURE 13 CIRCUIT 20 VIN = 12V 20 VIN = 12V 20 VIN = 12V VIN = 36V VIN = 36V VIN = 36V 10 VIN = 72V 10 VIN = 72V 10 VIN = 72V V V V 0 IN = 150V 0 IN = 150V 0 IN = 150V 0.1 1 10 100 0.1 1 10 100 0.1 1 10 100 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 3639 G01 3639 G02 3639 G03
Efficiency vs Input Voltage, Feedback Comparator Trip RUN and OVLO Comparator VOUT = 5V Threshold vs Temperature Threshold vs Temperature
100 802 ISET OPEN 1.24 90 FIGURE 13 CIRCUIT 1.22 RISING 80 801 70 1.20 60 1.18 50 800 1.16 40 1.14 EFFICIENCY (%) 30 1.12 FALLING 20 THRESHOLD VOLTAGE (V) 799 I 1.10 LOAD = 100mA 10 ILOAD = 10mA 1.08 I RUN OR OVLO THRESHOLD VOLTAGE (V) LOAD = 1mA 0 798 1.06 0 25 50 75 100 125 150 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 VIN VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 3639 G04 3639 G05 3639 G06
Peak Current Trip Threshold Peak Current Trip Threshold Peak Current Trip Threshold vs RISET vs Temperature vs Input Voltage
250 300 300 250 I 250 200 SET OPEN ISET OPEN 200 200 150 150 R 150 ISET = 100kΩ RISET = 100kΩ 100 100 100 PEAK CURRENT (mA) PEAK CURRENT (mA) 50 50 I 50 SET = GND ISET = GND PEAK CURRENT TRIP THRESHOLD (mA) 0 0 0 0 25 50 75 100 125 150 175 200 –55 –25 5 35 65 95 125 155 0 30 60 90 120 150 RISET (kΩ) TEMPERATURE (°C) VIN VOLTAGE (V) 3639 G07 3639 G08 3639 G09 3639fc 4 For more information www.linear.com/LTC3639 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
