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MAX877 Fiches technique(PDF) 5 Page - Maxim Integrated Products |
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MAX877 Fiches technique(HTML) 5 Page - Maxim Integrated Products |
5 / 12 page 5V/3.3V/3V/Adjustable-Output, Step-Up/Step-Down DC-DC Converters _______________________________________________________________________________________ 5 A: SWITCH VOLTAGE (LX PIN), 2V/div B: INDUCTOR CURRENT, 0.5A/div C: OUTPUT VOLTAGE RIPPLE, 50mV/div MAX877, VIN = 1.5V, IOUT = 100mA SWITCHING WAVEFORMS— CONTINUOUS CONDUCTION A B C 0mA 5 µs/div A: SWITCH VOLTAGE (LX PIN), 2V/div B: INDUCTOR CURRENT, 0.5A/div C: OUTPUT VOLTAGE RIPPLE, 50mV/div MAX877, VIN = 3V, IOUT = 70mA SWITCHING WAVEFORMS— DISCONTINUOUS CONDUCTION A B C 2 µs/div 0mA A: SWITCH VOLTAGE (LX PIN), 2V/div B: INDUCTOR CURRENT, 0.5A/div C: OUTPUT VOLTAGE RIPPLE, 50mV/div MAX878, VIN = 6.0V, VOUT = 5.0V, IOUT = 210mA STEP-DOWN CONVERSION A B C 5 µs/div 0mA A: SHDN, 2V/div B: VOUT, 1V/div VOUT = 3V MAX878 START-UP TIME GND GND 10ms/div A B A: INPUT VOLTAGE, 2V/div, 2V to 6V B: OUTPUT VOLTAGE, 50mV/div MAX878, IOUT = 100mA, VOUT = 3.3V STEP-UP/STEP-DOWN OPERATION A B 20ms/div GND ____________________________Typical Operating Characteristics (continued) (Circuit of Figure 4, TA = +25°C, unless otherwise noted.) |
Numéro de pièce similaire - MAX877 |
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Description similaire - MAX877 |
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