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LTC3633A Datasheet, PDF (7/28 Pages) Linear Technology – Dual Channel 3A, 20V Monolithic Synchronous Step-Down Regulator
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LTC3633A/LTC3633A-1
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, VIN1 = VIN2 = 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
IL
2A/DIV
3633a G19
VOUT = 1.8V
CSS = 4.7nF
ILOAD = 150mA
400μs/DIV
RUN
2V/DIV
VOUT
1V/DIV
3633a G20
IL
1A/DIV
VOUT = 1.8V
CSS = 4.7nF
ILOAD = 150mA
400μs/DIV
3633a G21
Start-Up into Prebiased Output
(Burst Mode Operation)
RUN
2V/DIV
VOUT 1.8V
1V/DIV
IL
1A/DIV
ILOAD = 0mA
200μs/DIV
3633a G22
Start-Up into Prebiased Output
(Forced Continuous Mode)
RUN
2V/DIV
VOUT 1.8V
1V/DIV
IL
2A/DIV
ILOAD = 0mA
1ms/DIV
3633a G22
3633a1f
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