Datasheet LTC3403 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 1.5MHz, 600mA Synchronous Step-Down Regulator with Bypass Transistor |
| 页数 / 页 | 16 / 4 — TYPICAL PERFOR A CE CHARACTERISTICS (From Figure 1a). Oscillator … |
| 文件格式/大小 | PDF / 950 Kb |
| 文件语言 | 英语 |
TYPICAL PERFOR A CE CHARACTERISTICS (From Figure 1a). Oscillator Frequency vs Supply Voltage. Frequency vs VOUT
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LTC3403
W U TYPICAL PERFOR A CE CHARACTERISTICS (From Figure 1a) Oscillator Frequency vs Supply Voltage Frequency vs VOUT
1.8 1600 TA = 25°C TA = 25°C VIN = 3.6V 1.7 1400 1.6 1200 1.5 1000 1.4 FREQUENCY (kHz) 800 OSCILLATOR FREQUENCY (MHz) 1.3 600 1.2 400 2 3 4 5 6 0 0.2 0.4 0.6 0.8 1.0 1.2 SUPPLY VOLTAGE (V) VOUT (V) 3403 G06 3403 F06a
Output Voltage vs Load Current RDS(ON) vs Input Voltage
1.844 0.7 TA = 25°C TA = 25°C VIN = 3.6V 1.834 0.6 MAIN SWITCH 1.824 0.5 ) Ω 1.814 ( 0.4 SYNCHRONOUS 1.804 DS(ON) 0.3 SWITCH R OUTPUT VOLTAGE (V) 1.794 0.2 BYPASS SWITCH 1.784 0.1 1.774 0 0 100 200 300 400 500 600 700 800 900 1000 0 1 2 3 4 5 6 7 LOAD CURRENT (mA) INPUT VOLTAGE (V) 3403 G07 3403 G08
Dynamic Supply Current RDS(ON) vs Temperature vs Supply Voltage
0.7 4500 T V A = 25°C IN = 2.7V 4000 VOUT = 1.8V 0.6 V I IN = 3.6V µA) LOAD = 0A VIN = 4.2V 3500 0.5 FORCED CONTINUOUS 3000 MODE ) Ω ( 0.4 2500 V 2000 DS(ON) 0.3 IN = 3.6V R VIN = 3V 1500 0.2 VIN = 4.2V 1000 MAIN SWITCH 0.1 DYNAMIC SUPPLY CURRENT ( SYNCHRONOUS SWITCH 500 Burst Mode BYPASS SWITCH OPERATION 0 0 –50 –25 0 25 50 75 100 125 2 3 4 5 6 TEMPERATURE (°C) SUPPLY VOLTAGE (V) 3403 G09 3403 G10 3403f 4
W U TYPICAL PERFOR A CE CHARACTERISTICS (From Figure 1a) Oscillator Frequency vs Supply Voltage Frequency vs VOUT
1.8 1600 TA = 25°C TA = 25°C VIN = 3.6V 1.7 1400 1.6 1200 1.5 1000 1.4 FREQUENCY (kHz) 800 OSCILLATOR FREQUENCY (MHz) 1.3 600 1.2 400 2 3 4 5 6 0 0.2 0.4 0.6 0.8 1.0 1.2 SUPPLY VOLTAGE (V) VOUT (V) 3403 G06 3403 F06a
Output Voltage vs Load Current RDS(ON) vs Input Voltage
1.844 0.7 TA = 25°C TA = 25°C VIN = 3.6V 1.834 0.6 MAIN SWITCH 1.824 0.5 ) Ω 1.814 ( 0.4 SYNCHRONOUS 1.804 DS(ON) 0.3 SWITCH R OUTPUT VOLTAGE (V) 1.794 0.2 BYPASS SWITCH 1.784 0.1 1.774 0 0 100 200 300 400 500 600 700 800 900 1000 0 1 2 3 4 5 6 7 LOAD CURRENT (mA) INPUT VOLTAGE (V) 3403 G07 3403 G08
Dynamic Supply Current RDS(ON) vs Temperature vs Supply Voltage
0.7 4500 T V A = 25°C IN = 2.7V 4000 VOUT = 1.8V 0.6 V I IN = 3.6V µA) LOAD = 0A VIN = 4.2V 3500 0.5 FORCED CONTINUOUS 3000 MODE ) Ω ( 0.4 2500 V 2000 DS(ON) 0.3 IN = 3.6V R VIN = 3V 1500 0.2 VIN = 4.2V 1000 MAIN SWITCH 0.1 DYNAMIC SUPPLY CURRENT ( SYNCHRONOUS SWITCH 500 Burst Mode BYPASS SWITCH OPERATION 0 0 –50 –25 0 25 50 75 100 125 2 3 4 5 6 TEMPERATURE (°C) SUPPLY VOLTAGE (V) 3403 G09 3403 G10 3403f 4