Datasheet

LTM4615
20
4615fb
For more information www.linear.com/LTM4615
applicaTions inForMaTion
PGOOD1
PGOOD1
FB1
COMP1
TRACK1
RUN/SS1RUN/SS2
COMP2
LDO_IN
EN3
BOOST3
GND1
GND2
LTM4615
GND3
V
IN1
V
IN2
V
OUT1
V
IN
1.2V
V
IN
3V TO 5.5V
R1
4.99k
R3
10k
C6
100µF
6.3V
C11
10µF
6.3V
C13
0.01µF
C12
10µF
C1
10µF
6.3V
C2
10µF
6.3V
L1*
0.2µH
1.2V
FB2
V
OUT2
1.2V
8A
PGOOD2 PGOOD1
FB2
COMP2
TRACK2 V
IN
FB2
COMP2
RUN/SS2
LDO_OUT
FB3
PGOOD3 PGOOD3
V
OUT2
*FAIR-RITE 0805 2508056007Y6
IF MORE FILTERING REQUIRED
R6
10k
4615 F13
1V
LOW NOISE
V
OUT3
1V LOW NOISE AT 1A
R5
3.32k
C5
100µF
6.3V
Figure 13. LTM4615 Parallel 1.2V at 8A Design, 1V at 1A Design
Figure 14. 3.3V and 2.5V at 4A with Output Voltage Tracking Design, 1.8V at 1A
PGOOD1
PGOOD1
FB1
COMP1
TRACK1
RUN/SS1
LDO_IN
EN3
BOOST3
GND1
GND2
LTM4615
GND3
V
IN1
V
IN2
V
OUT1
3.3V
2.5V
V
IN
5V
R
FB1
2.37k
C4
22µF
6.3V
C5
22µF
6.3V
C6
22µF
6.3V
C11
10µF
6.3V
C9
22µF
6.3V
C3
22µF
6.3V
C12
10µF
C1
10µF
6.3V
C1
10µF
6.3V
V
OUT1
2.5V
4A
SLAVE
V
OUT2
3.3V
4A
R4
10k
MASTER
PGOOD2
FB2
COMP2
TRACK2 V
IN
OR A CONTROL RAMP
RUN/SS2
LDO_OUT
FB3
PGOOD3 PGOOD3
V
OUT2
R
TA
2.37k
R
TB
4.99k
R3
10k
R
FB2
1.62k
R6
10k
4615 F14
1.8V
V
OUT3
1.8V AT 1A
R5
1.43k
PGOOD2