Datasheet

LTC3834
5
3834fb
TYPICAL PERFORMANCE CHARACTERISTICS
Load Step (Burst Mode Operation)
Load Step
(Forced Continuous Mode)
Load Step (Pulse Skipping Mode)
Inductor Current at Light Load Soft Start-Up Tracking Start-Up
Total Input Supply Current vs
Input Voltage
EXTV
CC
Switchover and INTV
CC
Voltages vs Temperature
INTV
CC
Line Regulation
T
A
= 25°C, unless otherwise noted.
V
OUT
= 3.3V
FIGURE 11 CIRCUIT
V
OUT
100mV/DIV
AC
COUPLED
3834 G04
20μs/DIV
I
L
2A/DIV
V
OUT
= 3.3V
FIGURE 11 CIRCUIT
V
OUT
100mV/DIV
AC
COUPLED
3834 G05
20μs/DIV
I
L
2A/DIV
V
OUT
= 3.3V
FIGURE 11 CIRCUIT
V
OUT
100mV/DIV
AC
COUPLED
3834 G06
20μs/DIV
I
L
2A/DIV
V
OUT
= 3.3V
I
LOAD
= 100μA
FIGURE 11 CIRCUIT
FORCED
CONTINUOUS
MODE
3834 G07
2μs/DIV
2A/DIV
Burst Mode
OPERATION
PULSE
SKIPPING
MODE
3834 G08
20ms/DIV
FIGURE 11 CIRCUIT
V
OUT
1V/DIV
3834 G09
20ms/DIV
FIGURE 11 CIRCUIT
MASTER
2V/DIV
V
OUT
2V/DIV
INPUT VOLTAGE (V)
200
250
25
3834 G10
100
150
10515
20 30 35
50
0
300
350
SUPPLY CURRENT (μA)
300μA LOAD
NO LOAD
FIGURE 11 CIRCUIT
TEMPERATURE (°C)
4.8
5.0
5.4
5.6
5.8
6.0
55
3834 G11
4.6
4.4
–5–25–45 15
35 75 95
4.2
4.0
5.2
EXTV
CC
AND INTV
CC
VOLTAGE (V)
INTV
CC
EXTV
CC
RISING
EXTV
CC
FALLING
INPUT VOLTAGE (V)
5.2
5.4
5.5
30
3834 G12
5.1
15105020
25 35 40
5.0
5.3
INTV
CC
VOLTAGE (V)