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LTC3828EG Datasheet(PDF) 6 Page - Linear Technology |
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LTC3828EG Datasheet(HTML) 6 Page - Linear Technology |
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6 / 32 page  6 LTC3828 3828f VITH (V) 0 80 70 60 50 40 30 20 10 0 –10 –20 2.0 3828 G16 3828 G19 3828 G20 3828 G21 3828 G22 3828 G23 3828 G24 0.5 1.0 1.5 2.5 OUTPUT CURRENT (A) 0 4.0 3828 G17 1.0 0.5 1.5 2.5 3.5 2.0 3.0 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 VSENSE COMMON MODE VOLTAGE (V) 01 24 3 5 6 3828 G18 100 50 0 –50 –100 VOUT1 1V/DIV VOUT2 1V/DIV VOUT1 100mV/DIV VOUT2 100mV/DIV IL1 2A/DIV VOUT1 100mV/DIV VOUT2 100mV/DIV SW1 20V/DIV IIN 25A/DIV VIN RIPPLE 50mV/DIV SW2 20V/DIV IL1 2A/DIV VOUT1 1V/DIV VOUT2 1V/DIV VOUT1 1V/DIV VOUT2 1V/DIV 5ms/DIV 2ms/DIV 100 µs/DIV 500ns/DIV 50 µs/DIV 50 µs/DIV VIN = 12V VOUT1 = 5V VOUT2 = 3.3V VIN = 12V VOUT1 = 5V VOUT2 = 3.3V LOAD STEP = 0A TO 3A WITH RATIOMETRIC TRACKING VIN = 12V VOUT1 = 5V VOUT2 = 3.3V LOAD STEP = 0A TO 3A WITH RATIOMETRIC TRACKING VIN = 12V VOUT1 = 5V VOUT2 = 3.3V IOUT5 = IOUT3.3 = 2A VIN = 12V VOUT1 = 5V VOUT2 = 3.3V VIN = 12V VOUT1 = 5V VOUT2 = 3.3V Soft Start-Up: (Figure 14, with Coincident Tracking) TYPICAL PERFOR A CE CHARACTERISTICS T A = 25°C unless otherwise noted. Current Sense Threshold vs ITH Voltage Dropout Voltage vs Output Current (Figure 14) SENSE Pins Total Source Current Soft Start-Up: (Figure 14, with Internal Soft Start-Up) Soft Start-Up: (Figure 14, with Ratiometric Tracking) Load Step: Burst Mode Operation (Figure 14) Input Source/Capacitor Instantaneous Current (Figure 14) Load Step: Continuous Mode (Figure 14) |
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