Datasheet

LTM4620A
7
4620afb
For more information www.linear.com/LTM4620A
TYPICAL PERFORMANCE CHARACTERISTICS
12V to 5V Load Step Response
Single Phase Start-Up, 13A Load
Output Current Sharing
12V to 1.5V, 0A Load
Short-Circuit Testing
12V to 1.5V, 13A No Load
Short-Circuit Testing
12V to 1.5V Start-Up, No Load
500mV/DIV
10ms/DIV
12V
IN
, 1.5V
OUT
AT NO LOAD
C
OUT
= 2 × 470µF, 4V SANYO POSCAP,
1 × 100µF, 6.3V CERAMIC
SOFT-START CAPACITOR = 0.01µF
USE RUN PIN TO CONTROL START-UP
4620A G12
500mV/DIV
10ms/DIV
12V
IN
, 1.5V
OUT
AT 13A LOAD
C
OUT
= 2 × 470µF, 4V SANYO POSCAP,
1 × 100µF, 6.3V CERAMIC
SOFT-START CAPACITOR = 0.01µF
USE RUN PIN TO CONTROL START-UP
4620A G13
500mV/DIV
1A/DIV
25ms/DIV
12V
IN
, 1.5V
OUT
AT 0A LOAD
C
OUT
= 2 × 470µF, 4V SANYO POSCAP,
1 × 100µF, 6.3V X5R CERAMIC
SOFT-START CAPACITOR = 0.01µF
USE RUN PIN TO CONTROL START-UP
4620A G14
500mV/DIV
10A/DIV
25ms/DIV
12V
IN
, 1.5V
OUT
AT 13A LOAD
C
OUT
= 2 × 470µF, 4V SANYO POSCAP,
1 × 100µF, 6.3V X5R CERAMIC
SOFT-START CAPACITOR = 0.01µF
USE RUN PIN TO CONTROL START-UP
4620A G15
100mV/DIV
50µs/DIV
C
FF
= 47pF
C
OUT
= 100µF CERAMIC X7R
4620A G10
5A/DIV
6A/µs STEP
TOTAL OUTPUT CURRENT (A)
EACH CHANNEL CURRENT (A)
6
9
10
4620A G11
5
4
0
19 224 8 162 6 11
2
12
11
8
7
3
1
I
OUT1
I
OUT2