Datasheet

LTC3612
9
3612fb
For more information www.linear.com/LTC3612
V
OUT
Short to GND,
Forced Continuous Mode
Dynamic Supply Current vs
Temperature without AVP Mode
TEMPERATURE (°C)
0.1
DYNAMIC SUPPLY CURRENT (mA)
1
10
100
–60 –50 30 70 110 150130
0.01
–10 10 50 90–30
3612 G29
FORCED CONTINUOUS MODE
PULSE-SKIPPING MODE
Burst Mode OPERATION
V
OUT
1V/DIV
I
L
2A/DIV
50µs/DIV
3612 G30
V
OUT
= 2.5V
I
OUT
= 0A
V
MODE
= 1.5V
Start-Up from Shutdown with
Prebiased Output
(Forced Continuous Mode)
Output Voltage During Sinking
vs Input Voltage
V
OUT
500mV/DIV
PGOOD
5V/DIV
I
L
2A/DIV
20µs/DIV
3612 G31
PREBIASED V
OUT
= 2.2V
V
OUT
= 1.2V
I
OUT
= 0A
V
MODE
= 1.5V
INPUT VOLTAGE (V)
2.25
1.76
V
OUT
(V)
1.78
1.82
1.84
1.86
1.90
3612 G32
1.80
1.88
3.75
3.25
5.25
2.75
4.25 4.75
–1.5A, 2MHz, 120°C
–1.5A, 2MHz, 25°C
V
OUT
= 1.8V
1µH INDUCTOR
Output Voltage During Sinking
vs Input Voltage
INPUT VOLTAGE (V)
2.25
0.88
V
OUT
(V)
0.89
0.91
0.92
0.93
0.95
3612 G33
0.90
0.94
3.75
3.25
5.25
2.75
4.25 4.75
–1.5A, 1MHz, 120°C
–1.5A, 1MHz, 25°C
V
OUT
= 0.9V
1µH INDUCTOR
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= 3.3V, RT/SYNC = SV
IN
, unless otherwise noted.