Datasheet LTC3406A (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT |
| 页数 / 页 | 16 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS (From Front Page Figure Except for … |
| 文件格式/大小 | PDF / 305 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS (From Front Page Figure Except for the Resistive Divider Resistor Values)
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LTC3406A
TYPICAL PERFORMANCE CHARACTERISTICS (From Front Page Figure Except for the Resistive Divider Resistor Values) Dynamic Supply Current vs Temperature Switch Leakage vs Temperature Switch Leakage vs Input Voltage
300 140 1000 V RUN = 0V IN = 3.6V V 900 OUT = 1.2V A) 120 μ 250 ILOAD = 0A 800 100 700 200 600 80 Y CURRENT ( 150 MAIN SWITCH 500 60 MAIN SWITCH 400 100 40 300 SWITCH LEAKAGE (nA) SYNCHRONOUS SWITCH LEAKAGE (pA) SYNCHRONOUS SWITCH 200 DYNAMIC SUPPL 50 20 SWITCH 100 0 0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 TEMPERATURE (°C) TEMPERATURE (°C) INPUT VOLTAGE (V) 3406A G13 3406A G14 3406A G15
Start-Up from Shutdown Load Step Load Step
VOUT 200mV/DIV RUN VOUT 2V/DIV 200mV/DIV VOUT IL IL 1V/DIV 500mA/DIV 500mA/DIV ILOAD ILOAD 500mA/DIV I 500mA/DIV LOAD 500mA/DIV VIN = 3.6V 500μs/DIV 3406A G16 VIN = 3.6V 20μs/DIV 3406A G17 VIN = 3.6V 20μs/DIV 3406A G18 VOUT = 1.8V VOUT = 1.8V VOUT = 1.8V ILOAD = 600mA (3Ω RES) ILOAD = 0mA TO 600mA ILOAD = 50mA TO 600mA
Load Step Load Step Discontinuous Operation
VOUT VOUT SW 200mV/DIV 200mV/DIV 2V/DIV VOUT IL IL 20mV/DIV 500mA/DIV 500mA/DIV AC COUPLED I I L LOAD ILOAD 200mA/DIV 500mA/DIV 500mA/DIV VIN = 3.6V 20μs/DIV 3406A G19 VIN = 3.6V 20μs/DIV 3406A G20 VIN = 3.6V 500ns/DIV 3406A G21 VOUT = 1.8V VOUT = 1.8V VOUT = 1.8V ILOAD = 100mA TO 600mA ILOAD = 200mA TO 600mA ILOAD = 50mA 3406afa 5
TYPICAL PERFORMANCE CHARACTERISTICS (From Front Page Figure Except for the Resistive Divider Resistor Values) Dynamic Supply Current vs Temperature Switch Leakage vs Temperature Switch Leakage vs Input Voltage
300 140 1000 V RUN = 0V IN = 3.6V V 900 OUT = 1.2V A) 120 μ 250 ILOAD = 0A 800 100 700 200 600 80 Y CURRENT ( 150 MAIN SWITCH 500 60 MAIN SWITCH 400 100 40 300 SWITCH LEAKAGE (nA) SYNCHRONOUS SWITCH LEAKAGE (pA) SYNCHRONOUS SWITCH 200 DYNAMIC SUPPL 50 20 SWITCH 100 0 0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 TEMPERATURE (°C) TEMPERATURE (°C) INPUT VOLTAGE (V) 3406A G13 3406A G14 3406A G15
Start-Up from Shutdown Load Step Load Step
VOUT 200mV/DIV RUN VOUT 2V/DIV 200mV/DIV VOUT IL IL 1V/DIV 500mA/DIV 500mA/DIV ILOAD ILOAD 500mA/DIV I 500mA/DIV LOAD 500mA/DIV VIN = 3.6V 500μs/DIV 3406A G16 VIN = 3.6V 20μs/DIV 3406A G17 VIN = 3.6V 20μs/DIV 3406A G18 VOUT = 1.8V VOUT = 1.8V VOUT = 1.8V ILOAD = 600mA (3Ω RES) ILOAD = 0mA TO 600mA ILOAD = 50mA TO 600mA
Load Step Load Step Discontinuous Operation
VOUT VOUT SW 200mV/DIV 200mV/DIV 2V/DIV VOUT IL IL 20mV/DIV 500mA/DIV 500mA/DIV AC COUPLED I I L LOAD ILOAD 200mA/DIV 500mA/DIV 500mA/DIV VIN = 3.6V 20μs/DIV 3406A G19 VIN = 3.6V 20μs/DIV 3406A G20 VIN = 3.6V 500ns/DIV 3406A G21 VOUT = 1.8V VOUT = 1.8V VOUT = 1.8V ILOAD = 100mA TO 600mA ILOAD = 200mA TO 600mA ILOAD = 50mA 3406afa 5