Datasheet LTC3564 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 2.25MHz, 1.25A Synchronous Step-Down Regulator |
| 页数 / 页 | 20 / 4 — TYPICAL PERFOR A CE CHARACTERISTICS TA = 25. C, VIN = 3.6V, unless … |
| 文件格式/大小 | PDF / 269 Kb |
| 文件语言 | 英语 |
TYPICAL PERFOR A CE CHARACTERISTICS TA = 25. C, VIN = 3.6V, unless otherwise specified. Efficiency vs Input Voltage
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LTC3564
W U TYPICAL PERFOR A CE CHARACTERISTICS TA = 25
°
C, VIN = 3.6V, unless otherwise specified. Efficiency vs Input Voltage Efficiency vs Output Current Efficiency vs Output Current
100 100 100 V V OUT = 1.2V OUT = 1.5V IOUT = 100mA 90 90 90 80 80 70 70 80 IOUT = 1.25A 60 60 IOUT = 10mA IOUT = 1mA 70 50 50 40 40 EFFICIENCY (%) EFFICIENCY (%) 60 EFFICIENCY (%) 30 30 IOUT = 0.1mA 20 20 50 VIN = 2.7V VIN = 2.7V 10 VIN = 3.6V 10 VIN = 3.6V VOUT = 1.8V VIN = 4.2V VIN = 4.2V 40 0 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.1 1 10 100 1000 10000 0.1 1 10 100 1000 10000 INPUT VOLTAGE (V) OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) 3564 G04 3564 G01 3564 G02
Reference Voltage vs Oscillator Frequency vs Temperature Temperature Frequency Variation vs VIN
615 2.40 6 2.35 4 610 2.30 2 605 2.25 0 600 2.20 –2 2.15 595 –4 REFERENCE VOLTAGE (mV) 2.10 FREQUENCY VARIATION (%) 590 OSCILLATOR FREQUENCY (MHz) –6 2.05 585 2.00 –8 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 2.5 3.0 3.5 4.0 4.5 5.0 5.5 TEMPERATURE (°C) TEMPERATURE (°C) VIN (V) 3564 G04 3564 G06 3564 G05
Load Regulation Line Regulation RDS(ON) vs Input Voltage
1.00 0.6 0.25 VOUT = 1.8V VOUT = 1.8V ILOAD = 400mA 0.75 0.4 0.20 0.50 0.2 MAIN SWITCH ) Ω 0.15 ( 0.25 0 ERROR (%) ERROR (%) DS(ON)R 0.10 SYNCHRONOUS SWITCH OUTV OUT 0 V –0.2 –0.25 0.05 –0.4 –0.50 –0.6 0 0 200 400 600 800 1000 1200 1400 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 OUTPUT CURRENT (mA) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3564 G07 3564 G08 3564 G09 3564f 4
W U TYPICAL PERFOR A CE CHARACTERISTICS TA = 25
°
C, VIN = 3.6V, unless otherwise specified. Efficiency vs Input Voltage Efficiency vs Output Current Efficiency vs Output Current
100 100 100 V V OUT = 1.2V OUT = 1.5V IOUT = 100mA 90 90 90 80 80 70 70 80 IOUT = 1.25A 60 60 IOUT = 10mA IOUT = 1mA 70 50 50 40 40 EFFICIENCY (%) EFFICIENCY (%) 60 EFFICIENCY (%) 30 30 IOUT = 0.1mA 20 20 50 VIN = 2.7V VIN = 2.7V 10 VIN = 3.6V 10 VIN = 3.6V VOUT = 1.8V VIN = 4.2V VIN = 4.2V 40 0 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.1 1 10 100 1000 10000 0.1 1 10 100 1000 10000 INPUT VOLTAGE (V) OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) 3564 G04 3564 G01 3564 G02
Reference Voltage vs Oscillator Frequency vs Temperature Temperature Frequency Variation vs VIN
615 2.40 6 2.35 4 610 2.30 2 605 2.25 0 600 2.20 –2 2.15 595 –4 REFERENCE VOLTAGE (mV) 2.10 FREQUENCY VARIATION (%) 590 OSCILLATOR FREQUENCY (MHz) –6 2.05 585 2.00 –8 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 2.5 3.0 3.5 4.0 4.5 5.0 5.5 TEMPERATURE (°C) TEMPERATURE (°C) VIN (V) 3564 G04 3564 G06 3564 G05
Load Regulation Line Regulation RDS(ON) vs Input Voltage
1.00 0.6 0.25 VOUT = 1.8V VOUT = 1.8V ILOAD = 400mA 0.75 0.4 0.20 0.50 0.2 MAIN SWITCH ) Ω 0.15 ( 0.25 0 ERROR (%) ERROR (%) DS(ON)R 0.10 SYNCHRONOUS SWITCH OUTV OUT 0 V –0.2 –0.25 0.05 –0.4 –0.50 –0.6 0 0 200 400 600 800 1000 1200 1400 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 OUTPUT CURRENT (mA) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3564 G07 3564 G08 3564 G09 3564f 4