Datasheet

LTC3614
6
3614fa
Sinking Current
Internal Start-Up in Forced
Continuous Mode
Tracking Up/Down in
Forced Continuous Mode,
Non DDR Mode
Tracking Up/Down in Forced
Continuous Mode, DDR Pin Tied
to SV
IN
Reference Voltage
vs Temperature
Switch On-Resistance
vs Input Voltage
Load Step Transient in Forced
Continuous Mode without AVP Mode
Load Step Transient in Forced
Continuous Mode with AVP Mode
Load Step Transient in Forced
Continuous Mode Sourcing and
Sinking Current
V
OUT
1V/DIV
V
TRACK/SS
500mV/DIV
PGOOD
2V/DIV
2ms/DIV
3614 G18
V
OUT
= 0V TO 1.8V
I
OUT
= 3A, V
TRACK/SS
= 0V TO 0.7V
V
MODE
= 1.5V, V
SRLIM/DDR
= 0V
TEMPERATURE (°C)
–50
0.594
REFERENCE VOLTAGE (V)
0.596
0.600
0.602
0.604
–10
30
50 130
3614 G20
0.598
–30 10
70
90
110
0.606
INPUT VOLTAGE (V)
2.5
R
DS(0N)
()
0.05
4.5
3614 G21
0.04
0.02
0.03
0.01
0
3.0
3.5
4.0
5.0 5.5
MAIN SWITCH
SYNCHRONOUS SWITCH
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= 3.3V, RT/SYNC = SV
IN
unless otherwise noted.
V
OUT
100mV/DIV
I
LOAD
2A/DIV
100µs/DIV
3614 G13
V
OUT
= 1.8V
I
LOAD
= 100mA TO 4A, V
MODE
= 1.5V
COMPENSATION FIGURE 1
V
OUT
100mV/DIV
I
LOAD
2A/DIV
100µs/DIV
3614 G14
V
OUT
= 1.8V
I
LOAD
= 100mA TO 4A, V
MODE
= 1.5V
V
OUT
200mV/DIV
I
LOAD
2A/DIV
100µs/DIV
3614 G15
V
OUT
= 1.8V
I
LOAD
= –3A TO 3A, V
MODE
= 1.5V
COMPENSATION FIGURE 1
V
OUT
100mV/DIV
SW
2V/DIV
I
L
2A/DIV
1µs/DIV
3614 G16
V
OUT
= 1.8V
I
OUT
= –3A, V
MODE
= 1.5V
I
L
2A/DIV
V
OUT
500mV/DIV
PGOOD
10V/DIV
RUN
10V/DIV
500µs/DIV
3614 G17
V
OUT
= 1.8V
I
OUT
= 0A, V
MODE
= 1.5V
V
OUT
500mV/DIV
V
TRACK/SS
200mV/DIV
PGOOD
2V/DIV
2ms/DIV
3614 G19
V
OUT
= 0V TO 1.2V
I
OUT
= 3A, V
TRACK/SS
= 0V TO 0.4V
V
MODE
= 1.5V, V
SRLIM/DDR
= 3.3V