Datasheet LT3692A (Analog Devices) - 8
| Manufacturer | Analog Devices |
| Description | Monolithic Dual Tracking 3.5A Step-Down Switching Regulator |
| Pages / Page | 42 / 8 — Typical perForMance characTerisTics. Switch Peak Current. Minimum Boost … |
| File Format / Size | PDF / 742 Kb |
| Document Language | English |
Typical perForMance characTerisTics. Switch Peak Current. Minimum Boost Voltage. Boost Current vs Temperature. vs Temperature
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LT3692A
Typical perForMance characTerisTics Switch Peak Current Minimum Boost Voltage Boost Current vs Temperature vs Temperature vs Temperature
100 5.0 3.00 ISW = 3A 90 4.5 VILIM = 1.5V 2.75 80 4.0 2.50 70 3.5 3A 60 3.0 V 2.25 ILIM = 0.5V 50 2.5 V 2.00 ILIM = 0V 40 2.0 VOLTAGE (V) 1.75 PEAK CURRENT (A) BOOST CURRENT (mA) 30 1.5 1A 1.50 20 1.0 10 1.25 0.5A 0.5 0 0 1.00 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3692A G18 3692A G19 3692A G20
CLKOUT Frequency vs RT/SYNC Resistance 5.0V Efficiency and Power Loss 3.3V Efficiency and Power Loss
2500 90 3.0 90 3.0 2250 85 EFFICIENCY 2.5 2000 85 2.5 1750 EFFICIENCY 80 2.0 PLOSS (W) 80 2.0 PLOSS (W) 1500 1250 75 POWER LOSS 1.5 75 1.5 1000 POWER LOSS EFFICIENCY (%) 70 1.0 EFFICIENCY (%) 750 70 1.0 CLKOUT FREQUENCY (kHz) 500 VIN = 12V VIN = 12V 65 F 0.5 SW = 1MHz 65 FREQ = 1MHz 0.5 250 CH1 = 5V CH1 = 3.3V CH2 = 0V CH2 = 0V 0 60 0 0 10 20 30 40 50 60 70 80 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4 60 0 0 0.5 1 1.5 2 2.5 3 3.5 4 RT/SYNC RESISTANCE (kΩ) OUTPUT CURRENT (A) OUTPUT CURRENT (A) 3692A G21 3692A G22 3692A G23
2.5V Efficiency and Power Loss 1.8V Efficiency and Power Loss
90 3.0 85 3.0 85 EFFICIENCY 2.5 80 EFFICIENCY 2.5 80 2.0 75 2.0 PLOSS (W) PLOSS (W) 75 1.5 70 1.5 POWER LOSS POWER LOSS EFFICIENCY (%) EFFICIENCY (%) 70 1.0 65 1.0 VIN = 12V VIN = 12V 65 FSW = 1MHz 0.5 60 FSW = 1MHz 0.5 CH1 = 2.5V CH1 = 1.8V CH2 = 0V CH2 = 0V 60 0 55 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4 OUTPUT CURRENT (A) OUTPUT CURRENT (A) 3692A G24 3692A G25 3692afc 8 For more information www.linear.com/3692A Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics Switch Peak Current Minimum Boost Voltage Boost Current vs Temperature vs Temperature vs Temperature
100 5.0 3.00 ISW = 3A 90 4.5 VILIM = 1.5V 2.75 80 4.0 2.50 70 3.5 3A 60 3.0 V 2.25 ILIM = 0.5V 50 2.5 V 2.00 ILIM = 0V 40 2.0 VOLTAGE (V) 1.75 PEAK CURRENT (A) BOOST CURRENT (mA) 30 1.5 1A 1.50 20 1.0 10 1.25 0.5A 0.5 0 0 1.00 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3692A G18 3692A G19 3692A G20
CLKOUT Frequency vs RT/SYNC Resistance 5.0V Efficiency and Power Loss 3.3V Efficiency and Power Loss
2500 90 3.0 90 3.0 2250 85 EFFICIENCY 2.5 2000 85 2.5 1750 EFFICIENCY 80 2.0 PLOSS (W) 80 2.0 PLOSS (W) 1500 1250 75 POWER LOSS 1.5 75 1.5 1000 POWER LOSS EFFICIENCY (%) 70 1.0 EFFICIENCY (%) 750 70 1.0 CLKOUT FREQUENCY (kHz) 500 VIN = 12V VIN = 12V 65 F 0.5 SW = 1MHz 65 FREQ = 1MHz 0.5 250 CH1 = 5V CH1 = 3.3V CH2 = 0V CH2 = 0V 0 60 0 0 10 20 30 40 50 60 70 80 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4 60 0 0 0.5 1 1.5 2 2.5 3 3.5 4 RT/SYNC RESISTANCE (kΩ) OUTPUT CURRENT (A) OUTPUT CURRENT (A) 3692A G21 3692A G22 3692A G23
2.5V Efficiency and Power Loss 1.8V Efficiency and Power Loss
90 3.0 85 3.0 85 EFFICIENCY 2.5 80 EFFICIENCY 2.5 80 2.0 75 2.0 PLOSS (W) PLOSS (W) 75 1.5 70 1.5 POWER LOSS POWER LOSS EFFICIENCY (%) EFFICIENCY (%) 70 1.0 65 1.0 VIN = 12V VIN = 12V 65 FSW = 1MHz 0.5 60 FSW = 1MHz 0.5 CH1 = 2.5V CH1 = 1.8V CH2 = 0V CH2 = 0V 60 0 55 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4 OUTPUT CURRENT (A) OUTPUT CURRENT (A) 3692A G24 3692A G25 3692afc 8 For more information www.linear.com/3692A Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
