EUROPE
ASIA
AMERICAS
Astec House, Waterfront Business Park
Merry Hill, Dudley
Units 2111-2116, Level 21
Tower1, Metroplaza
5810 Van Allen Way
Carlsbad, CA 92008
Telephone: 760-930-4600
Facsimile: 760-930-0698
West Midlands, DY5 1LX, UK
Telephone: 44 (1384) 842-211
Facsimile: 44 (1384) 843-355
223, Hing Fong Road
Fwai Fong, New Territories
Hong Kong
Telephone: 852-2437-9662
Facsimile: 852-2402-4426
Ordering Information
Input
Voltage
Output
Voltage
Output
Current
Efficiency2
Model Number
36V to 75V
36V to 75V
36V to 75V
36V to 75V
36V to 75V
36V to 75V
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
12A
18A
20A
25A
25A
25A
91% Typ
90% Typ
89% Typ
88% Typ
85% Typ
83% Typ
ALD12A48(N) - (6)(S)(L)
ALD18F48(N) - (6)(S)(L)
ALD20G48(N)- (6)(S)(L)
ALD25Y48(N) - (6)(S)(L)
ALD25M48(N)- (6)(S)(L)
ALD25K48(N) - (6)(S)(L)
NOTES:
o
Efficiency values taken at nominal input full load condition, 25 C ambient temperature.
OPTIONS
(N) : "N"
=
designates Negatve Logic Enable (default is Positive Enable with no suffix “N” required)
(6)
(S)
:
:
“-6” = 3.7mm nominal pin length (default is 5mm nominal pin length with no suffix “-6” required)
“-S” = Surface Mount Termination (default is thru hole termination with no sufix “-S required)
(L)
:
“L”
=
RoHS compliant (RoHS 6) / “Blank” - RoHS compliant with Lead (PB) in solder exemption (RoHS 5)
TH Termination
1.30
Pin Assignments
[33.0]
Pin 1
Pin 8
Single Output
0.90
[22.9]
1. + Vin
PIN LENGTH
A
2. Enable
3. - Vin
0.35
[8.8]
0.19
[4.8]
Std Pin Length: 0.189 [4.8] MIN
0.205 [5.2] MAX
PINSIDEDOWN
4. - Vout
5. - Sense
6. Trim
0.22
“-6” Option:
0.137 [3.5] MIN
0.152 [3.9] MAX
See A
[5.5]
0.03
[0.8]
7. + Sense
8. +Vout
1.10
[27.9]
[1.57Ø](2
SIDEV0I.E06W2Ø
[1.0Ø](6X)
0.04Ø
0.10
[2.5]
0.10
[2.5]
0.15
[3.8]
0.15
[3.8]
Notes:
0.30
[7.6]
0.15
[3.8]
1. Measured at 20MHz bandwidth with external 10 µF
tant. capacitor in parallel with 0.1 µF ceramic
capacitor placed across +Vout and -Vout; 33µF e-cap
or equivalent placed across +Vin and -Vin.
0.45
[11.4]
0.60
[15.2]
0.30
[7.6]
0.60
[15.2]
PINSIDEUP
SMT Termination
2. Efficiency measurements taken at full load, nominal
line and T = 25 °C.
A
1.30[33.0]
3. All specifications are typical at nominal line, full load
and T = 25 °C unless otherwise noted.
A
4. Mechanical drawings are for reference only.
Dimensions are in inches [millimeters]. Mechanical
tolerance: 0.002[0.5], recommended surface mount
pads: ∅ = 0.11[2.79] 0.005 [0.13]; through hole pin
diameter (Pins 4 & 8) ∅ = 0.062 [1.57], others ∅ =
0.04 [1.0] (6X).
0.90[22.9]
PINSIDEDOWN
0.06[1.4]
0.15[3.8]
5. Technical reference Notes should be consulted for
detailed information when available.
0.15[3.8]
1.10[27.9]
0.10[2.5]
0.15[3.8]
0.30[7.6]
6. All specifications subject to change without notice.
7. Warranty 1 yr.
0.45[11.4]
0.60[15.2]
Astec reserves the right to make changes to the information
contained herein without notice and assumes no liability as a
result of its use or application. (REV08: MARCH 05, 2006)
0.30[7.6]
0.30[7.6]
PINSIDEUP
www.astecpower.com
2
EMERSON-NETWORKPOWER [ EMERSON NETWORK POWER ]
