Datasheet

LTM4649
6
4649f
For more information www.linear.com/LTM4649
TYPICAL PERFORMANCE CHARACTERISTICS
Soft-Start with Full Load
Short-Circuit Protection
with No Load
Short-Circuit Protection
with Full Load
5V
IN
, 3.3V
OUT
Load Transient 12V
IN
, 3.3V
OUT
Load Transient Soft-Start with No Load
V
OUT
100mV/DIV
AC
I
OUT
5A/DIV
AC
50µs/DIV
5V
IN
, 3.3V
OUT
, 5A TO 10A LOAD STEP
C
OUT
= 2 • 220µF 4V CERAMIC CAPACITOR
NO C
FF
CAPACITOR
4649 G10
V
OUT
100mV/DIV
AC
I
OUT
5A/DIV
AC
50µs/DIV
12V
IN
, 3.3V
OUT
, 5A TO 10A LOAD STEP, 750kHz
C
OUT
= 2 • 220µF 4V CERAMIC CAPACITOR
NO C
FF
CAPACITOR
4649 G11
V
OUT
0.5V/DIV
V
SW
10V/DIV
I
IN
1A/DIV
20ms/DIV
12V
IN
, 1.5V
OUT
I
O
= 0A START-UP
C
SS
= 0.1µF
4649 G12
V
OUT
0.5V/DIV
V
SW
10V/DIV
I
IN
1A/DIV
20ms/DIV
12V
IN
, 1.5V
OUT
I
O
= 10A START-UP
C
SS
= 0.1µF
4649 G13
V
OUT
0.5V/DIV
V
SW
10V/DIV
I
IN
1A/DIV
20µs/DIV
12V
IN
, 1.5V
OUT
SHORT CIRCUIT WITH NO LOAD
C
OUT
= 2 • 220µF 4V CERAMIC CAPACITOR
4649 G14
V
OUT
1V/DIV
V
SW
10V/DIV
I
IN
1A/DIV
20µs/DIV
12V
IN
, 1.5V
OUT
SHORT CIRCUIT WITH FULL LOAD
C
OUT
= 2 • 220µF 4V CERAMIC CAPACITOR
4649 G15