Datasheet

LTM4628
6
4628fe
For more information www.linear.com/LTM4628
TYPICAL PERFORMANCE CHARACTERISTICS
Output Short-Circuit Output Short-Circuit Coincident Tracking
3.3V Load Transient Output Start-Up Output Start-Up
12V
IN
, 3.3V
OUT
, 0A TO 4A LOAD STEP AT 4A/µs
C
OUT1
, 4× 100µF 6.3V X5R CERAMIC 1210 CASE SIZE
SWITCHING FREQUENCY 500kHz
C
FF
CAPACITOR = 47pF
4628 G10
V
OUT
100mV/DIV
I
OUT
2A/DIV
100µs/DIV
4628 G11
V
OUT
1V/DIV
5ms/DIV
INPUT
CURRENT
1A/DIV
20ms/DIV
V
IN
= 12V
V
OUT
= 2.5V
I
OUT
= 0A
4628 G12
V
OUT
1V/DIV
5ms/DIV
INPUT
CURRENT
1A/DIV
20ms/DIV
V
IN
= 12V
V
OUT
= 2.5V
I
OUT
= 8A
4628 G13
V
OUT
1V/DIV
5ms/DIV
INPUT
CURRENT
2A/DIV
50µs/DIV
V
IN
= 12V
V
OUT
= 2.5V
I
OUT
= 0A
4628 G14
V
OUT
1V/DIV
5ms/DIV
INPUT
CURRENT
2A/DIV
50µs/DIV
V
IN
= 12V
V
OUT
= 2.5V
I
OUT
= 8A
4628 G15
10ms/DIV
V
OUT1
= 1.8V AT 8A
V
OUT2
= 1.2V AT 8A
1.5V Load Transient 1.8V Load Transient 2.5V Load Transient
12V
IN
, 1.5V
OUT
, 0A TO 4A LOAD STEP AT 4A/µs
C
OUT1
4× 100µF 6.3V X5R CERAMIC 1210 CASE SIZE
SWITCHING FREQUENCY 500kHz
C
FF
CAPACITOR = 47pF
4628 G07
V
OUT
50mV/DIV
I
OUT
2A/DIV
100µs/DIV
12V
IN
, 1.8V
OUT
, 0A TO 4A LOAD STEP AT 4A/µs
C
OUT1
4× 100µF 6.3V X5R CERAMIC 1210 CASE SIZE
SWITCHING FREQUENCY 500kHz
C
FF
CAPACITOR = 47pF
4628 G08
V
OUT
50mV/DIV
I
OUT
2A/DIV
100µs/DIV
12V
IN
, 2.5V
OUT
, 0A TO 4A LOAD STEP AT 4A/µs
C
OUT1
, 4× 100µF 6.3V X5R CERAMIC 1210 CASE SIZE
SWITCHING FREQUENCY 500kHz
C
FF
CAPACITOR = 47pF
4628 G09
V
OUT
100mV/DIV
I
OUT
2A/DIV
100µs/DIV