Datasheet LTC3417A (Analog Devices) - 5

LTC3417A
Typical perForMance characTerisTics OUT2 Efficiency vs VIN (Pulse Skipping Mode) Load Step OUT1 Load Step OUT2
100 ILOAD = 250mA 95 VOUT1 VOUT2 100mV/DIV 100mV/DIV 90 ILOAD = 800mA 85 IOUT1 IOUT2 500mA/DIV 500mA/DIV EFFICIENCY (%) 80 75 3417 G11 3417 G12 V V 100µs/DIV V 100µs/DIV OUT = 2.5V IN = 3.6V IN = 3.6V REFER TO FIGURE 4 VOUT = 1.8V VOUT = 2.5V 70 ILOAD = 0.25A to 1.4A ILOAD = 0.25A to 0.8A 2 2.5 3 3.5 4 4.5 5 5.5 REFER TO FIGURE 4 REFER TO FIGURE 4 VIN (V) 3417 G10
Efficiency vs Frequency OUT1 Efficiency vs Frequency OUT2 RDS(ON) vs VIN OUT1
94 90 0.105 TA = 27°C TA = 27°C VIN = 3.6V 92 VOUT = 1.8V 85 0.100 IOUT = 300mA P-CHANNEL SWITCH 90 80 0.095 (Ω) 88 75 R DS(ON) 0.090 EFFICIENCY (%) 86 EFFICIENCY (%) 70 TA = 27°C 0.085 84 65 VIN = 3.6V VOUT = 2.5V N-CHANNEL SWITCH I 82 60 OUT = 100mA 0.080 0 1 2 3 4 5 0 1 2 3 4 2 2.5 3 3.5 4 4.5 5 5.5 FREQUENCY (MHz) FREQUENCY (MHz) VIN (V) 3417 G13 3417 G14 3417 G15
RDS(ON) vs VIN OUT2 Frequency vs VIN Frequency vs Temperature
0.20 6 15 TA = 27°C 4 0.19 10 FREQ = VIN P-CHANNEL SWITCH 2 FREQ = 143k TO GROUND 0.18 5 0 (Ω) 0.17 –2 0 FREQ = 143k TO GROUND R DS(ON) –4 0.16 FREQ = V –5 IN FREQUENCY VARIATION (%) –6 FREQUENCY VARIATION (%) 0.15 –10 N-CHANNEL SWITCH –8 0.14 –10 –15 2 2.5 3 3.5 4 4.5 5 5.5 2 2.5 3 3.5 4 4.5 5 5.5 –50 –25 0 25 50 75 100 125 VIN (V) VIN (V) TEMPERATURE (˚C) 3417 G16 3417 G17 3417 G18 3417afc 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Package Description Revision History Related Parts