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LTC3633 Datasheet, PDF (7/28 Pages) Linear Technology – Dual Channel 3A, 15V Monolithic Synchronous Step-Down Regulator
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LTC3633
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, VIN = 12V, fSW = 1MHz, L = 1μH unless
otherwise noted.
Load Step (Internal Compensation)
Start-Up (Burst Mode Operation)
Start-Up (Forced Continuous Mode)
VOUT
AC-COUPLED
100mV/DIV
IL
2A/DIV
20μs/DIV
VOUT = 1.8V
ILOAD = 100mA to 3A
ITH = INTVCC
RUN
2V/DIV
VOUT
1V/DIV
3633 G19
IL
2A/DIV
400μs/DIV
CSS = 4.7nF
ILOAD = 150mA
RUN
2V/DIV
VOUT
1V/DIV
3633 G20
IL
1A/DIV
400μs/DIV
CSS = 4.7nF
ILOAD = 150mA
3633 G21
Start-Up into Prebiased Output
(Burst Mode Operation)
RUN
2V/DIV
VOUT 1.8V
1V/DIV
IL
1A/DIV
ILOAD = 0mA
200μs/DIV
3633 G22
Start-Up into Prebiased Output
(Forced Continuous Mode)
RUN
2V/DIV
VOUT 1.8V
1V/DIV
IL
2A/DIV
ILOAD = 0mA
1ms/DIV
3633 G22
3633f
7
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