Datasheet LTC3406-1.2 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT |
| 页数 / 页 | 12 / 3 — TYPICAL PERFOR A CE CHARACTERISTICS TA = 25. C unless otherwise … |
| 文件格式/大小 | PDF / 238 Kb |
| 文件语言 | 英语 |
TYPICAL PERFOR A CE CHARACTERISTICS TA = 25. C unless otherwise specified. (From Figure 1). Reference Voltage vs
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LTC3406-1.2
W U TYPICAL PERFOR A CE CHARACTERISTICS TA = 25
°
C unless otherwise specified. (From Figure 1) Reference Voltage vs Efficiency vs Input Voltage Efficiency and Power Loss Temperature
100 100 1.228 VIN = 3.6V 95 90 1.218 90 80 1.208 IOUT = 100mA 85 70 1.198 IOUT = 10mA EFFICIENCY (%) 80 EFFICIENCY (%) 60 1.188 REFERENCE VOLTAGE (V) 75 50 V 1.178 I IN = 2.7V OUT = 600mA VIN = 3.6V V 70 IN = 4.2V 40 1.168 2 3 4 5 6 –50 –25 0 25 50 75 100 125 0.1 1 10 100 1000 INPUT VOLTAGE (V) I TEMPERATURE (°C) LOAD (mA) 340612 G01 340612 G03 340612 GO2
Oscillator Frequency vs Oscillator Frequency vs Temperature Supply Voltage Output Voltage vs Load Current
1.70 1.8 1.225 VIN = 3.6V TA = 25°C 1.65 1.7 1.215 1.60 1.6 1.55 1.205 1.50 1.5 1.45 1.195 FREQUENCY (MHz) 1.4 1.40 OUTPUT VOLTAGE (V) 1.185 OSCILLATOR FREQUENCY (MHz) 1.35 1.3 1.30 1.2 1.175 –50 –25 0 25 50 75 100 125 2 3 4 5 6 0 100 200 300 400 500 600 700 800 900 1000 TEMPERATURE (°C) SUPPLY VOLTAGE (V) LOAD CURRENT (mA) 340612 G05 340612 G04 340612 G06
RDS(ON) vs Input Voltage RDS(ON) vs Temperature Supply Current vs Supply Voltage
0.7 0.7 50 TA = 25°C V ILOAD = 0A IN = 2.7V 45 0.6 0.6 VIN = 3.6V V 40 IN = 4.2V 0.5 0.5 µA) 35 MAIN ) Ω SWITCH Ω 30 ( 0.4 ( 0.4 25 DS(ON) 0.3 DS(ON) 0.3 R SYNCHRONOUS R 20 SWITCH 0.2 0.2 15 SUPPLY CURRENT ( 10 0.1 0.1 MAIN SWITCH 5 SYNCHRONOUS SWITCH 0 0 0 0 1 2 3 4 5 6 7 –50 –25 0 25 50 75 100 125 2 3 4 5 6 INPUT VOLTAGE (V) TEMPERATURE (°C) SUPPLY VOLTAGE (V) 340612 G07 340612 G08 340612 G09 340612fa 3
W U TYPICAL PERFOR A CE CHARACTERISTICS TA = 25
°
C unless otherwise specified. (From Figure 1) Reference Voltage vs Efficiency vs Input Voltage Efficiency and Power Loss Temperature
100 100 1.228 VIN = 3.6V 95 90 1.218 90 80 1.208 IOUT = 100mA 85 70 1.198 IOUT = 10mA EFFICIENCY (%) 80 EFFICIENCY (%) 60 1.188 REFERENCE VOLTAGE (V) 75 50 V 1.178 I IN = 2.7V OUT = 600mA VIN = 3.6V V 70 IN = 4.2V 40 1.168 2 3 4 5 6 –50 –25 0 25 50 75 100 125 0.1 1 10 100 1000 INPUT VOLTAGE (V) I TEMPERATURE (°C) LOAD (mA) 340612 G01 340612 G03 340612 GO2
Oscillator Frequency vs Oscillator Frequency vs Temperature Supply Voltage Output Voltage vs Load Current
1.70 1.8 1.225 VIN = 3.6V TA = 25°C 1.65 1.7 1.215 1.60 1.6 1.55 1.205 1.50 1.5 1.45 1.195 FREQUENCY (MHz) 1.4 1.40 OUTPUT VOLTAGE (V) 1.185 OSCILLATOR FREQUENCY (MHz) 1.35 1.3 1.30 1.2 1.175 –50 –25 0 25 50 75 100 125 2 3 4 5 6 0 100 200 300 400 500 600 700 800 900 1000 TEMPERATURE (°C) SUPPLY VOLTAGE (V) LOAD CURRENT (mA) 340612 G05 340612 G04 340612 G06
RDS(ON) vs Input Voltage RDS(ON) vs Temperature Supply Current vs Supply Voltage
0.7 0.7 50 TA = 25°C V ILOAD = 0A IN = 2.7V 45 0.6 0.6 VIN = 3.6V V 40 IN = 4.2V 0.5 0.5 µA) 35 MAIN ) Ω SWITCH Ω 30 ( 0.4 ( 0.4 25 DS(ON) 0.3 DS(ON) 0.3 R SYNCHRONOUS R 20 SWITCH 0.2 0.2 15 SUPPLY CURRENT ( 10 0.1 0.1 MAIN SWITCH 5 SYNCHRONOUS SWITCH 0 0 0 0 1 2 3 4 5 6 7 –50 –25 0 25 50 75 100 125 2 3 4 5 6 INPUT VOLTAGE (V) TEMPERATURE (°C) SUPPLY VOLTAGE (V) 340612 G07 340612 G08 340612 G09 340612fa 3