Datasheet

LTC3601
6
3601fc
V
OUT
100mV/DIV
AC COUPLED
I
LOAD
1A/DIV
10µs/DIV
3601 G18
V
IN
= 12V
V
OUT
= 1.8V
I
LOAD
= 150mA TO 1.5A
I
L
1A/DIV
V
OUT
100mV/DIV
AC COUPLED
I
LOAD
1A/DIV
10µs/DIV
3601 G17
V
IN
= 12V
V
OUT
= 1.8V
I
LOAD
= 150mA TO 1.5A
I
L
1A/DIV
For more information www.linear.com/LTC3601
TYPICAL PERFORMANCE CHARACTERISTICS
Start-Up from Shutdown
Burst Mode Operation
Start-Up from Shutdown
Forced Continuous Mode
Load Step
Burst Mode Operation
Load Step
Forced Continuous Mode
Short-Circuit Waveforms
Forced Continuous Mode
T
A
= 25°C, V
IN
= 12V, f
O
= 1MHz, L = 2.2µH unless otherwise noted.
RUN
2V/DIV
PGOOD
5V/DIV
I
L
1A/DIV
200µs/DIV
3601 G15
V
IN
= 12V
V
OUT
= 1.8V
I
LOAD
= 20mA
V
OUT
2V/DIV
RUN
2V/DIV
I
L
1A/DIV
200µs/DIV
3601 G16
V
IN
= 12V
V
OUT
= 1.8V
I
LOAD
= 1.5A
V
OUT
1V/DIV
V
OUT
1V/DIV
PGOOD
2V/DIV
100µs/DIV
3601 G19
V
IN
= 12V
V
OUT
= 1.8V
I
L
2A/DIV
Start-Up Into Pre-Biased Output
(1V Pre-Bias) Burst Mode
Operation
V
OUT
1V/DIV
RUN
10V/DIV
PGOOD
5V/DIV
1ms/DIV
3601 G20
V
IN
= 12V
V
OUT
= 1.8V
I
LOAD
= 5mA
I
L
1A/DIV
Output Voltage vs Time
Burst Mode Operation
SW
5V/DIV
I
L
1A/DIV
2µs/DIV
3601 G12
V
IN
= 12V
V
OUT
= 1.8V
I
LOAD
= 100mA
V
OUT
20mV/DIV
AC COUPLED
Output Voltage vs Time
Forced Continuous Mode
SW
5V/DIV
I
L
1A/DIV
2µs/DIV
3601 G13
V
IN
= 12V
V
OUT
= 1.8V
I
LOAD
= 100mA
V
OUT
20mV/DIV
AC COUPLED
Output Tracking
2ms/DIV
3601 G14
V
IN
= 12V
V
OUT
= 1.8V
R
LOAD
= 36Ω
V
OUT
V
FB
TRACK
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