LTC3374 Datasheet, PDF (10/24 Pages) Linear Technology – 8-Channel Parallelable 1A Buck DC/DCs

LTC3374
TYPICAL PERFORMANCE CHARACTERISTICS
1A Buck Regulator No-Load
Start-Up Transient (Burst Mode
Operation)
4A Buck Regulator No-Load
Start-Up Transient (Forced
Continuous Mode)
1A Buck Regulator, Transient
Response (Burst Mode Operation)
V_OUT
500mV/DIV
INDUCTOR
CURRENT
500mA/DIV
EN 2V/DIV
V_IN = 3.3V
200µs/DIV
V_OUT
500mV/DIV
INDUCTOR
CURRENT
500mA/DIV
3374 G33
EN 2V/DIV
V_IN = 3.3V
200µs/DIV
V_OUT
100mV/DIV
AC-COUPLED
INDUCTOR
CURRENT
200mA/DIV
0mA
3374 G34
50µs/DIV
LOAD STEP = 100mA TO 700mA
V_IN = 3.3V
V_OUT = 1.8V
3374 G35
1A Buck Regulator, Transient
Response (Forced Continuous
Mode)
V_OUT
100mV/DIV
AC-COUPLED
INDUCTOR
CURRENT
200mA/DIV
0mA
4A Buck Regulator, Transient
Response (Burst Mode Operation)
4A Buck Regulator, Transient
Response (Forced Continuous
Mode)
V_OUT
100mV/DIV
AC-COUPLED
INDUCTOR
CURRENT
1A/DIV
0mA
V_OUT
100mV/DIV
AC-COUPLED
INDUCTOR
CURRENT
1A/DIV
0mA
50µs/DIV
LOAD STEP = 100mA TO 700mA
V_IN = 3.3V
V_OUT = 1.8V
3374 G36
50µs/DIV
LOAD STEP = 400mA TO 2.8A
V_IN = 3.3V
V_OUT = 1.8V
3374 G37
50µs/DIV
LOAD STEP = 400mA TO 2.8A
V_IN = 3.3V
V_OUT = 1.8V
3374 G38
3374f
10
For more information www.linear.com/LTC3374