Datasheet LTC3406, LTC3406-1.5, LTC3406-1.8 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT |
| Pages / Page | 16 / 4 — TYPICAL PERFOR A CE CHARACTERISTICS. (From Figure1a Except for the … |
| File Format / Size | PDF / 247 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHARACTERISTICS. (From Figure1a Except for the Resistive Divider Resistor Values)
Model Line for this Datasheet
Text Version of Document
LTC3406 LTC3406-1.5/LTC3406-1.8
W U TYPICAL PERFOR A CE CHARACTERISTICS (From Figure1a Except for the Resistive Divider Resistor Values) Oscillator Frequency vs Supply Voltage Output Voltage vs Load Current RDS(ON) vs Input Voltage
1.8 1.844 0.7 VIN = 3.6V 1.834 1.7 0.6 1.824 0.5 1.6 MAIN ) 1.814 Ω SWITCH ( 0.4 1.5 1.804 DS(ON) 0.3 R SYNCHRONOUS 1.4 SWITCH OUTPUT VOLTAGE (V) 1.794 0.2 OSCILLATOR FREQUENCY (MHz) 1.3 1.784 0.1 1.2 1.774 0 2 3 4 5 6 0 100 200 300 400 500 600 700 800 900 0 1 2 3 4 5 6 7 SUPPLY VOLTAGE (V) LOAD CURRENT (mA) INPUT VOLTAGE (V) 3406 G07 3406 G08 3406 G09
RDS(ON) vs Temperature Supply Current vs Supply Voltage Supply Current vs Temperature
0.7 50 50 V V V OUT = 1.8V IN = 3.6V IN = 2.7V 45 I 45 V LOAD = 0A OUT = 1.8V 0.6 V I IN = 3.6V LOAD = 0A V 40 40 IN = 4.2V A) 0.5 A) µ 35 µ 35 ) Ω 30 30 ( 0.4 25 25 DS(ON) 0.3 R 20 20 0.2 15 15 SUPPLY CURRENT ( SUPPLY CURRENT ( 10 10 0.1 MAIN SWITCH 5 5 SYNCHRONOUS SWITCH 0 0 0 –50 –25 0 25 50 75 100 125 2 3 4 5 6 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) SUPPLY VOLTAGE (V) TEMPERATURE (°C) 3406 G10 3406 G11 3406 G12
Switch Leakage vs Temperature Switch Leakage vs Input Voltage Burst Mode Operation
300 120 V RUN = 0V IN = 5.5V RUN = 0V 250 100 SW SYNCHRONOUS 5V/DIV SWITCH 200 80 VOUT 100mV/DIV AC COUPLED 150 60 MAIN I SWITCH L 200mA/DIV 100 40 SWITCH LEAKAGE (nA) SWITCH LEAKAGE (pA) MAIN SWITCH 50 20 V 4 3406 G15 IN = 3.6V µs/DIV SYNCHRONOUS SWITCH VOUT = 1.8V I 0 0 LOAD = 50mA –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 TEMPERATURE (°C) INPUT VOLTAGE (V) 3406 G13 3406 G14 3406fa 4
W U TYPICAL PERFOR A CE CHARACTERISTICS (From Figure1a Except for the Resistive Divider Resistor Values) Oscillator Frequency vs Supply Voltage Output Voltage vs Load Current RDS(ON) vs Input Voltage
1.8 1.844 0.7 VIN = 3.6V 1.834 1.7 0.6 1.824 0.5 1.6 MAIN ) 1.814 Ω SWITCH ( 0.4 1.5 1.804 DS(ON) 0.3 R SYNCHRONOUS 1.4 SWITCH OUTPUT VOLTAGE (V) 1.794 0.2 OSCILLATOR FREQUENCY (MHz) 1.3 1.784 0.1 1.2 1.774 0 2 3 4 5 6 0 100 200 300 400 500 600 700 800 900 0 1 2 3 4 5 6 7 SUPPLY VOLTAGE (V) LOAD CURRENT (mA) INPUT VOLTAGE (V) 3406 G07 3406 G08 3406 G09
RDS(ON) vs Temperature Supply Current vs Supply Voltage Supply Current vs Temperature
0.7 50 50 V V V OUT = 1.8V IN = 3.6V IN = 2.7V 45 I 45 V LOAD = 0A OUT = 1.8V 0.6 V I IN = 3.6V LOAD = 0A V 40 40 IN = 4.2V A) 0.5 A) µ 35 µ 35 ) Ω 30 30 ( 0.4 25 25 DS(ON) 0.3 R 20 20 0.2 15 15 SUPPLY CURRENT ( SUPPLY CURRENT ( 10 10 0.1 MAIN SWITCH 5 5 SYNCHRONOUS SWITCH 0 0 0 –50 –25 0 25 50 75 100 125 2 3 4 5 6 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) SUPPLY VOLTAGE (V) TEMPERATURE (°C) 3406 G10 3406 G11 3406 G12
Switch Leakage vs Temperature Switch Leakage vs Input Voltage Burst Mode Operation
300 120 V RUN = 0V IN = 5.5V RUN = 0V 250 100 SW SYNCHRONOUS 5V/DIV SWITCH 200 80 VOUT 100mV/DIV AC COUPLED 150 60 MAIN I SWITCH L 200mA/DIV 100 40 SWITCH LEAKAGE (nA) SWITCH LEAKAGE (pA) MAIN SWITCH 50 20 V 4 3406 G15 IN = 3.6V µs/DIV SYNCHRONOUS SWITCH VOUT = 1.8V I 0 0 LOAD = 50mA –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 TEMPERATURE (°C) INPUT VOLTAGE (V) 3406 G13 3406 G14 3406fa 4
