Datasheet

LTM4619
5
4619fb
For more information www.linear.com/LTM4619
Typical perForMance characTerisTics
3.3V Output Transient Response Start-Up, I
OUT
= 0A Start-Up, I
OUT
= 4A
Short Circuit, I
OUT
= 0A Short Circuit, I
OUT
= 4A
1.2V Output Transient Response 1.5V Output Transient Response 2.5V Output Transient Response
(Refer to Figures 18 and 19)
I
OUT
1A/DIV
V
OUT
50mV/DIV
100µs/DIV
4619 G04
6V
IN
1.2V
OUT
AT 2A/µs LOAD STEP
f = 780kHz
C
OUT
2× 22µF, 6.3V X5R CERAMIC
C
OUT
1× 330µF, 6.3V SANYO POSCAP
I
OUT
1A/DIV
V
OUT
50mV/DIV
100µs/DIV
4619 G05
6V
IN
1.5V
OUT
AT 2A/µs LOAD STEP
f = 780kHz
C
OUT
2× 22µF, 6.3V X5R CERAMIC
C
OUT
1× 330µF, 6.3V SANYO POSCAP
I
OUT
1A/DIV
V
OUT
50mV/DIV
100µs/DIV
4619 G06
6V
IN
2.5V
OUT
AT 2A/µs LOAD STEP
f = 780kHz
C
OUT
2× 22µF, 6.3V X5R CERAMIC
C
OUT
1× 330µF, 6.3V SANYO POSCAP
I
OUT
1A/DIV
V
OUT
50mV/DIV
100µs/DIV
4619 G07
6V
IN
3.3V
OUT
AT 2A/µs LOAD STEP
f = 780kHz
C
OUT
2× 22µF, 6.3V X5R CERAMIC
C
OUT
1× 330µF, 6.3V SANYO POSCAP
I
IN
0.5A/DIV
V
IN
1V/DIV
20ms/DIV
4619 G08
V
IN
= 12V, V
OUT
= 2.5V, I
OUT
= 0A
C
OUT
= 2× 22µF 10V
AND 1× 100µF 6.3V CERAMIC CAPs
C
SOFTSTART
= 0.1µF
USE RUN PIN TO CONTROL START-UP
I
IN
0.5A/DIV
V
IN
1V/DIV
20ms/DIV
4619 G09
V
IN
= 12V, V
OUT
= 2.5V,
I
OUT
= 4A RESISTIVE LOAD
C
OUT
= 2× 22µF 10V,
AND 1× 100µF 6.3V CERAMIC CAPs
C
SOFTSTART
= 0.1µF
USE RUN PIN TO CONTROL START-UP
I
IN
0.5A/DIV
V
OUT
1V/DIV
50µs/DIV
4619 G10
V
IN
= 12V, V
OUT
= 2.5V, I
OUT
= 0A
C
OUT
= 2× 22µF 10V,
AND 1× 100µF 6.3V CERAMIC CAPs
I
IN
0.5A/DIV
V
OUT
1V/DIV
50µs/DIV
4619 G11
V
IN
= 12V, V
OUT
= 2.5V, I
OUT
= 4A
C
OUT
= 2× 22µF 10V,
AND 1× 100µF 6.3V CERAMIC CAPs