Datasheet LTC3104 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 2.6μA Quiescent Current, 15V, 300mA Synchronous Step-Down DC/DC Converter and 10mA LDO |
| Pages / Page | 22 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. … |
| File Format / Size | PDF / 486 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. Application No-Load Input Current
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LTC3104
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted Application No-Load Input Current Efficiency vs Output Current Efficiency vs Input Voltage vs Supply Voltage (Forced (Forced Continuous Operation) (Forced Continuous Operation) Continuous Operation)
100 100 3.5 VOUT = 3.3V VOUT = 3.3V, L = 10µH 90 L = 10µH 90 3.0 80 80 I 70 LOAD = 300mA 70 I 2.5 LOAD = 100mA 60 60 ILOAD = 10mA ILOAD = 1mA 2.0 50 50 40 40 1.5 EFFICIENCY (%) EFFICIENCY (%) 30 VIN = 3.7V 30 INPUT CURRENT (mA) 1.0 V 20 IN = 5V V 20 IN = 7V 0.5 10 VIN = 10V 10 FRONT PAGE APPLICATION VIN = 15V LDO ENABLED 0 0 0 0.0001 0.001 0.01 0.1 1 3 5 7 9 11 13 15 2 4 6 8 10 12 14 16 OUTPUT CURRENT (A) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3104 G04 3104 G05 3104 G06
Feedback Voltage Oscillator Frequency vs Temperature vs Temperature RDS(ON) vs Temperature
0.75 10 50 NORMALIZED TO 25°C NORMALIZED TO 25°C NORMALIZED TO 25°C 8 40 VIN = 10V 0.50 6 30 4 (%) SYNCHRONOUS 20 FB 0.25 2 RECTIFIER MAIN SWITCH 0 10 0 –2 0 CHANGE IN V –4 FREQUENCY CHANGE (%) –10 –0.25 –6 CHANGE IN RESISTANCE (%) –8 –20 –0.50 –10 –30 –60 –40 –20 0 20 40 60 80 100 120 140 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3104 G07 3104 G08 3104 G09
Application No-Load Input Current vs Temperature (Automatic Burst SW Leakage vs Temperature Peak Current Limit vs Temperature Mode Operation)
400 10.0 5.0 VIN = 10V VIN = 10V VIN = 10V 350 7.5 VOUT = 2.5V VOUT = 2.5V 4.5 300 SYNCHRONOUS RECTIFIER 5.0 4.0 250 2.5 MAIN 200 SWITCH 0 3.5 150 –2.5 3.0 LEAKAGE CURRENT (nA) INPUT CURRENT (µA) 100 –5.0 2.5 50 PEAK CURRENT LIMIT CHANGE (%) –7.5 0 –10.0 2.0 –50 –25 0 25 50 75 100 125 150 –50 –20 10 40 70 100 130 –50 –25 –10 10 30 50 70 90 110 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3104 G10 3104 G11 3104 G12 3104fa For more information www.linear.com/LTC3104 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted Application No-Load Input Current Efficiency vs Output Current Efficiency vs Input Voltage vs Supply Voltage (Forced (Forced Continuous Operation) (Forced Continuous Operation) Continuous Operation)
100 100 3.5 VOUT = 3.3V VOUT = 3.3V, L = 10µH 90 L = 10µH 90 3.0 80 80 I 70 LOAD = 300mA 70 I 2.5 LOAD = 100mA 60 60 ILOAD = 10mA ILOAD = 1mA 2.0 50 50 40 40 1.5 EFFICIENCY (%) EFFICIENCY (%) 30 VIN = 3.7V 30 INPUT CURRENT (mA) 1.0 V 20 IN = 5V V 20 IN = 7V 0.5 10 VIN = 10V 10 FRONT PAGE APPLICATION VIN = 15V LDO ENABLED 0 0 0 0.0001 0.001 0.01 0.1 1 3 5 7 9 11 13 15 2 4 6 8 10 12 14 16 OUTPUT CURRENT (A) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3104 G04 3104 G05 3104 G06
Feedback Voltage Oscillator Frequency vs Temperature vs Temperature RDS(ON) vs Temperature
0.75 10 50 NORMALIZED TO 25°C NORMALIZED TO 25°C NORMALIZED TO 25°C 8 40 VIN = 10V 0.50 6 30 4 (%) SYNCHRONOUS 20 FB 0.25 2 RECTIFIER MAIN SWITCH 0 10 0 –2 0 CHANGE IN V –4 FREQUENCY CHANGE (%) –10 –0.25 –6 CHANGE IN RESISTANCE (%) –8 –20 –0.50 –10 –30 –60 –40 –20 0 20 40 60 80 100 120 140 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3104 G07 3104 G08 3104 G09
Application No-Load Input Current vs Temperature (Automatic Burst SW Leakage vs Temperature Peak Current Limit vs Temperature Mode Operation)
400 10.0 5.0 VIN = 10V VIN = 10V VIN = 10V 350 7.5 VOUT = 2.5V VOUT = 2.5V 4.5 300 SYNCHRONOUS RECTIFIER 5.0 4.0 250 2.5 MAIN 200 SWITCH 0 3.5 150 –2.5 3.0 LEAKAGE CURRENT (nA) INPUT CURRENT (µA) 100 –5.0 2.5 50 PEAK CURRENT LIMIT CHANGE (%) –7.5 0 –10.0 2.0 –50 –25 0 25 50 75 100 125 150 –50 –20 10 40 70 100 130 –50 –25 –10 10 30 50 70 90 110 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3104 G10 3104 G11 3104 G12 3104fa For more information www.linear.com/LTC3104 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
