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LTC3875 Datasheet(PDF) 5 Page - Linear Technology |
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LTC3875 Datasheet(HTML) 5 Page - Linear Technology |
5 / 44 page LTC3875 5 3875fa For more information www.linear.com/LTC3875 Typical perForMance characTerisTics Load Step (Figure 16 Application Circuit) (Forced Continuous Mode) Load Step (Figure 16 Application Circuit) (Pulse-Skipping Mode) Prebiased Output at 1V Coincident Tracking Tracking Up and Down with External Ramp Quiescent Current vs Temperature without EXTVCC Efficiency vs Output Current and Mode (Figure 16 Application Circuit) Efficiency vs Output Current and Mode (Figure 16 Application Circuit) Load Step (Figure 16 Application Circuit) (Burst Mode Operation) LOAD CURRENT (A) 30 90 100 20 10 80 50 70 60 40 0.01 1 10 100 3875 G01 0 0.1 Burst Mode OPERATION CCM VIN = 12V VOUT = 1.5V PULSE-SKIPPING LOAD CURRENT (A) 30 90 100 20 10 80 50 70 60 40 0.01 1 10 100 3875 G02 0 0.1 Burst Mode OPERATION CCM VIN = 12V VOUT = 1V PULSE- SKIPPING ILOAD 40A/DIV 5A TO 30A VOUT 100mV/DIV AC-COUPLED 10µs/DIV 3875 G03 VIN = 12V VOUT = 1.5V IL1, IL2 10A/DIV ILOAD 40A/DIV 5A TO 30A VOUT 100mV/DIV AC-COUPLED 10µs/DIV 3875 G04 VIN = 12V VOUT = 1.5V IL1, IL2 10A/DIV ILOAD 40A/DIV 5A TO 30A VOUT 100mV/DIV AC-COUPLED 10µs/DIV 3875 G05 VIN = 12V VOUT = 1.5V IL1, IL2 10A/DIV VOUT 1V/DIV VOSNS+ 500mV/DIV TK/SS 500mV/DIV 2.5ms/DIV 3875 G06 VIN = 12V VOUT = 1.5V CCM: NO LOAD RUN 2V/DIV VOUT1 VOUT2 1V/DIV 2.5ms/DIV 3875 G07 VIN = 12V VOUT1 = 1.5V, RLOAD = 12, CCM VOUT2 = 1V, RLOAD = 6, CCM VOUT1 VOUT2 TK/SS1 TK/SS2 2V/DIV VOUT1 VOUT2 500mV/DIV 10ms/DIV 3875 G08 VIN = 12V VOUT1 = 1V, 1 LOAD VOUT2 = 1.5V, 1.5 LOAD VOUT1 VOUT2 TEMPERATURE (°C) –50 5.0 5.5 6.5 7.0 7.5 10.0 8.5 –10 30 50 130 3875 G09 6.0 9.0 9.5 8.0 –30 10 70 90 110 |
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Similar Description - LTC3875_15 |
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