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
Electrical Specifications
(continued)
Parameter
Output Voltage Set-point
(V
IN
=V
IN,min
, I
O
=I
O, max
, T
ref
=25°C)
Output Voltage
(Over all operating input voltage, resistive
load, and temperature conditions until end
of life)
Adjustment Range
Selected by an external resistor
ATH
ATS
Output Regulation
Line (V
IN
=V
IN, min
to V
IN, max
)
Load (I
O
=I
O, min
to I
O, max
)
Temperature (T
ref
=T
A, min
to T
A, max
)
Output Ripple and Noise on nominal output
(V
IN
=V
IN, nom
and I
O
=I
O, min
to I
O, max
C
OUT
= 0.01μF // 0.1μF // 10μF ceramic
capacitors)
Peak-to-Peak (5Hz to 20MHz bandwidth)
Peak-to-Peak (5Hz to 20MHz bandwidth)
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance
ESR
≥
1 mΩ
ESR
≥
10 mΩ
Output Current (V
IN
= 5Vdc/12Vdc)
Output Current (V
IN
= 5Vdc)
Output Current Limit Inception (Hiccup
Mode)
Output Short-Circuit Current
(V
O
≤250mV)
( Hiccup Mode )
Efficiency
V
IN
=12Vdc, T
A
=25°C
I
O
=25A
,
V
O
= V
O,set
V
O,set
= 0.8dc
V
O,set
= 1.2Vdc
V
O,set
= 1.5Vdc
V
O,set
= 1.8Vdc
V
O,set
= 2.5Vdc
V
O,set
= 3.3Vdc
V
O,set
= 5.0Vdc
Efficiency
V
IN
=5Vdc, T
A
=25°C
I
O
=30A
,
V
O
= V
O,set
V
O,set
= 0.8dc
V
O,set
= 1.2Vdc
V
O,set
= 1.5Vdc
V
O,set
= 1.8Vdc
V
O,set
= 2.5Vdc
V
O,set
= 3.3Vdc
Switching Frequency, Fixed
All
η
η
η
η
η
η
η
η
η
η
η
η
η
f
sw
⎯
82.0
84.0
88.0
89.5
91.0
92.5
94.0
84.0
88.5
90.0
91.0
93.0
95.0
300
⎯
%
%
%
%
%
%
%
%
%
%
%
%
%
kHz
All
All
ATH025/ATS025
ATH030
All
All
C
O, max
C
O, max
I
o
I
o
I
O, lim
I
O, s/c
0
0
0
0
120
20
2,000
10,000
25
30
µF
µF
Adc
Adc
% I
omax
% I
omax
All
All
All
0.5
0.1
0.4
1
% V
O, set
% V
O, set
% V
O, set
V
O
V
O
0.8
0.8
3.63
5.5
Vdc
Vdc
All
V
O, set
–3.0
+3.0
% V
O, set
Device
All
Symbol
V
O, set
Min
-1.5
Typ
⎯
Max
+1.5
Unit
% V
O, set
V
o
≤
2.5V
2.5V < V
o
≤
3.63V
V
o
> 3.63V
50
75
100
mV
pk-pk
mV
pk-pk
mV
pk-pk
LINEAGE
POWER
3