Datasheet

5
LTC1875
1875f
Load Step Response (Pulse
Skipping Mode)
Pulse Skipping Mode Operation
Burst Mode Operation
Soft-Start with Shorted Output
TYPICAL PERFOR A CE CHARACTERISTICS
UW
I
L
200mA/DIV
V
OUT
100mV/DIV
SW
5V/DIV
V
OUT
100mV/DIV
I
L
1A/DIV
I
TH
1V/DIV
I
L
200mA/DIV
V
OUT
100mV/DIV
SW
5V/DIV
I
VIN
500mA/DIV
RUN/SS
1V/DIV
100µs/DIV
1875 G09
V
IN
= 3.6V C
IN
= 22µF
V
OUT
= 1.5V C
OUT
= 47µF
L = 6.8µHI
LOAD
= 200mA to 1700mA
1µs/DIV
1875 G10
V
IN
= 4.2V C
IN
= 22µF
V
OUT
= 2.5V C
OUT
= 47µF
L = 6.8µHI
LOAD
= 50mA
25µs/DIV
1875 G11
V
IN
= 4.2V C
IN
= 22µF
V
OUT
= 2.5V C
OUT
= 47µF
L = 6.8µHI
LOAD
= 50mA
5ms/DIV
1875 G12
V
IN
= 3.6V C
IN
= 22µF
V
OUT
= 0V C
OUT
= 47µF
L = 6.8µHI
LOAD
= 0A