LTC3733_15 Datasheet, PDF (7/32 Pages) Linear Technology – 3-Phase, Buck Controllers for AMD CPUs

TYPICAL PERFOR A CE CHARACTERISTICS
LTC3733/LTC3733-1
Maximum Current Threshold
Mismatch vs Temperature
3.0
2.5
2.0
1.5
1.0
Shed Mode at 1Amp,
Light Load Current
V_OUT
AC, 20mV/DIV
V_SW1
10V/DIV
V_SW2
10V/DIV
V_SW3
10V/DIV
0.5
0
–45 –30 –15 0 15 30 45 60 75 90
TEMPERATURE (°C)
3733 G19
4µs/DIV
V_IN = 12V
V_OUT = 1.5V
V_FCB = V_CC
FREQUENCY = 210kHz
Burst Mode at 1Amp,
Light Load Current
V_OUT
AC, 20mV/DIV
V_SW1
10V/DIV
V_SW2
10V/DIV
3733 G20
V_SW3
10V/DIV
20µs/DIV
V_IN = 12V
V_OUT = 1.5V
V_FCB = OPEN
FREQUENCY = 210kHz
Continuous Mode at 1Amp,
Light Load Current
Transient Load Current
Response: 0Amp to 50Amp
V_OUT
AC, 20mV/DIV
V_SW1
5V/DIV
V_SW2
5V/DIV
V_SW3
5V/DIV
4µs/DIV
V_IN = 12V
V_OUT = 1.5V
V_FCB = 0V
FREQUENCY = 210kHz
3733 G22
V_OUT
AC, 50mV/DIV
I_L
20A/DIV
20µs/DIV
V_IN = 12V
V_OUT = 1.5V
V_FCB = 0V
FREQUENCY = 210kHz
3733 G23
3733 G21
3733f
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