Data Sheet
June 3, 2009
Austin MegaLynx
TM
: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current
6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
Parameter
On/Off Signal Interface
(V
IN
=V
IN, min
to V
IN, max
; open collector or equivalent,
Signal referenced to GND)
Logic High (Module OFF)
Input High Current
Input High Voltage
Logic Low (Module ON)
Input Low Current
Input Low Voltage
Turn-On Delay and Rise Times
(V
IN
=V
IN, nom
, I
O
=I
O, max ,
V
O
to within ±1% of steady
state)
Case 1: On/Off input is enabled and then
input power is applied (delay from instant at
which V
IN
= V
IN, min
until V
o
= 10% of V
o, set
)
Case 2: Input power is applied for at least one
second and then the On/Off input is enabled (delay
from instant at which Von/Off is enabled until V
o
=
10% of V
o, set
)
Output voltage Rise time (time for V
o
to rise from
10% of Vo, set to 90% of Vo, set)
Output voltage overshoot
I
O
= I
O, max
; V
IN, min
– V
IN, max
, T
A
= 25 C
Remote Sense Range
Over Temperature Protection
(See Thermal Consideration section)
Sequencing Slew rate capability
(V
IN, min
to V
IN, max
; I
O, min
to I
O, max
V
SEQ
< V
o
)
Sequencing Delay time (Delay from V
IN, min
to application of voltage on SEQ pin)
Tracking Accuracy
Power-up (2V/ms)
Power-down (1V/ms)
(V
IN, min
to V
IN, max
; I
O, min
- I
O, max
V
SEQ
< V
o,set
)
Input Undervoltage Lockout
Turn-on Threshold
Turn-off Threshold
Turn-on Threshold
Turn-off Threshold
Forced Load Share Accuracy
Number of units in Parallel
ATH
ATH
ATS
ATS
-P
-P
⎯
4.3
3.9
5.5
5.0
10
5
Vdc
Vdc
Vdc
Vdc
% Io
All
All
Ts
EQ-delay
|V
SEQ
–V
o,set
|
|V
SEQ
–V
o,set
|
10
100
200
200
400
msec
mV
mV
All
dV
SEQ
/dt
—
2
V/msec
All
All
T
ref
⎯
⎯
⎯
125
0.5
⎯
V
°C
o
Device
Symbol
Min
Typ
Max
Unit
All
All
All
All
I
IH
V
IH
I
IL
V
IL
0.5
3.0
⎯
-0.3
⎯
⎯
⎯
⎯
3.3
V
IN, max
200
1.2
mA
V
µA
V
All
All
Tdelay
Tdelay
―
―
3
3
msec
msec
All
Trise
―
4
3.0
msec
% V
O, set
LINEAGE
POWER
5
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
