Datasheet

LTM4614
5
4614fb
Typical perForMance characTerisTics
Start-Up Start-Up
V
FB
vs Temperature
Current Limit Foldback
Short-Circuit Protection
1.5V Short, No Load
TEMPERATURE (°C)
–50
794
V
FB
(mV)
796
798
800
802
804
806
–25 500 25 12510075
4614 G12
OUTPUT CURRENT (A)
3
V
OUT
(V)
0.6
0.8
1.0
6
8
4614 G13
0.4
0.2
0
4 5 7
1.2
1.4
1.6
V
IN
= 5V
V
IN
= 3.3V
V
IN
= 2.5V
V
OUT
= 1.5V
V
OUT
0.5V/DIV
I
IN
1A/DIV
20µs/DIV
4614 G14
Short-Circuit Protection
1.5V Short, 4A Load
V
OUT
0.5V/DIV
I
IN
1A/DIV
100µs/DIV
4614 G15
V
OUT
1V/DIV
I
IN
1A/DIV
V
IN
= 5V
V
OUT
= 2.5V
C
OUT
= 100µF
NO LOAD
(0.01µF SOFT-START CAPACITOR)
200µs/DIV
4614 G10
V
OUT
1V/DIV
I
IN
1A/DIV
V
IN
= 5V
V
OUT
= 2.5V
C
OUT
= 100µF
4A LOAD
(0.01µF SOFT-START CAPACITOR)
200µs/DIV
4614 G11
pin FuncTions
V
IN1
, V
IN2
(J1-J6, K1-K6); (C1-C6, D1-D6): Power Input
Pins. Apply input voltage between these pins and GND
pins. Recommend placing input decoupling capacitance
directly between V
IN
pins and GND pins.
V
OUT1
, V
OUT2
(J9-J12, K9-K12, L9-L12, M9-M12); (C9-C12,
D9-D12, E9-E12, F9-F12): Power Output Pins. Apply out-
put load between these pins and GND pins. Recommend
placing output decoupling capacitance directly between
these pins and GND pins. Review Table 4.
GND1, GND2, (G1-G12, H1, H7-H12, J7-J8, K7-K8, L1,
L7-L8, M1-M8); (A1-A12, B1, B7-B12, C7-C8, D7-D8,
E1, E7-E8, F1-F8): Power Ground Pins for Both Input
and Output Returns.
TRACK1, TRACK2 (L3, E3): Output Voltage Tracking Pins.
When the module is configured as a master output, then a
soft-start capacitor is placed on the RUN/SS pin to ground
to control the master ramp rate, or an external ramp can
be applied to the master regulator’s track pin to control it.