Datasheet
LTC3615/LTC3615-1
6
3615fb
For more information www.linear.com/LTC3615
Load Step Transient in FCM
with AVP Mode
Load Step Transient in
FCM External Compensation
Load Step Transient
in Pulse-Skipping Mode
Load Step Transient in
Burst Mode Operation
V
OUT
200mV/DIV
I
L
1A/DIV
50µs/DIV
3615 G12
V
OUT
= 1.8V
I
LOAD
= 100mA TO 3A
V
MODE
= 1.5V
COMPENSATION FIGURE 1
V
OUT
200mV/DIV
I
L
1A/DIV
50µs/DIV
3615 G13
V
OUT
= 1.8V
I
LOAD
= 100mA TO 3A
V
MODE
= 3.3V
COMPENSATION FIGURE 1
V
OUT
200mV/DIV
I
L
1A/DIV
50µs/DIV
3615 G14
V
OUT
= 1.8V
I
LOAD
= 100mA TO 3A
V
MODE
= 0V
COMPENSATION FIGURE 1
V
OUT
100mV/DIV
I
L
1A/DIV
50µs/DIV
3615 G15
V
OUT
= 1.8V
I
LOAD
= 100mA TO 3A
V
MODE
= 1.5V
V
ITH
= 3.3V
OUTPUT CAPACITOR VALUE FIGURE 1
Pulse-Skipping Mode Operation
Forced Continuous Mode
Operation (FCM)
Burst Mode Operation
V
OUT
20mV/DIV
I
L
200mA/DIV
1µs/DIV
3615 G09
V
OUT
= 1.8V
I
OUT
= 100mA
V
MODE
= 1.5V
V
OUT
20mV/DIV
I
L
500mA/DIV
20µs/DIV
3615 G10
V
OUT
= 1.8V
I
OUT
= 75mA
V
MODE
= 3.3V
V
OUT
20mV/DIV
I
L
500mA/DIV
20µs/DIV
3615 G11
V
OUT
= 1.8V
I
OUT
= 75mA
V
MODE
= 0V
Load Step Transient in Forced
Continuous Mode Sourcing and
Sinking Current
V
OUT
200mV/DIV
I
L
2A/DIV
0A
50µs/DIV
3615 G16
V
OUT
= 1.8V
I
LOAD
= –1.5A TO 3A
V
MODE
= 1.5V
COMPENSATION FIGURE 1
Internal Start-Up in Forced
Continuous Mode
V
OUT
500mV/DIV
RUN
1V/DIV
I
L
1A/DIV
PGOOD
2V/DIV
500µs/DIV
3615 G17
V
OUT
= 1.8V
I
OUT
= 3A
V
MODE
= 1.5V
Typical perForMance characTerisTics
V
IN
= 3.3V, R
T
/SYNC = SV
IN
, unless otherwise noted.
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