Datasheet

LTC4081
8
4081f
200μs/DIV
V
OUT
1V/DIV
V
EN
_
BUCK
5V/DIV
4081 G28
0V
0V
50μs/DIV
V
OUT
20mV/DIV
AC COUPLED
I
LOAD
250mA/DIV
0mA
4081 G25
Output Voltage Transient
Step Response (Burst Mode
Operation)
Charger V
PROG
Soft-Start
Output Voltage Transient
Step Response (PWM Mode)
Output Voltage Waveform
when Switching Between Burst
and PWM Mode (I
LOAD
= 10mA)
Buck V
OUT
Soft-Start
(I
LOAD
= 50mA)
50μs/DIV
V
OUT
50mV/DIV
AC COUPLED
V
MODE
5V/DIV
4081 G27
0V
50μs/DIV
V
OUT
20mV/DIV
AC COUPLED
I
LOAD
50mA/DIV
4081 G26
0mA
50μs/DIV
V
PROG
200mV/DIV
4081 G29
0V
TYPICAL PERFORMANCE CHARACTERISTICS
(T
A
= 25°C, V
CC
= 5V, V
BAT
= 3.8V, unless otherwise
specifi ed)