PIN SIDE DOW N

0.35

[8.8]

1.30

[33.0]

0.04Ø [1.0Ø](6X)

0.22

[5.5]

0.90

[22.9]

0.03

[0.8]

0.19

[4.8]

0.062 Ø[1.57Ø](2

EUROPE

Astec House, Waterfront Business Park

Merry Hill, Dudley

West Midlands, DY5 1LX, UK

Telephone: 44 (1384) 842-211

Facsimile: 44 (1384) 843-355

AMERICAS

5810 Van Allen Way

Carlsbad, CA 92008

Telephone: 760-930-4600

Facsimile: 760-930-0698

2

Ordering Information

www.astecpower.com

ASIA

Units 2111-2116, Level 21

Tower1, Metroplaza

223, Hing Fong Road

Fwai Fong, New Territories

Hong Kong

Telephone: 852-2437-9662

Facsimile: 852-2402-4426

Input

Output

Output

Model Number

Voltage

Voltage

Current

36V to 75V

5.0V

12A

91% Typ

ALD12A48(N) - (6)(S)(L)

36V to 75V

3.3V

18A

90% Typ

ALD18F48(N) - (6)(S)(L)

36V to 75V

2.5V

20A

89% Typ

ALD20G48(N)- (6)(S)(L)

36V to 75V

1.8V

25A

88% Typ

ALD25Y48(N) - (6)(S)(L)

36V to 75V

1.5V

25A

85% Typ

ALD25M48(N)- (6)(S)(L)

36V to 75V

1.2V

25A

83% Typ

ALD25K48(N) - (6)(S)(L)

NOTES:

OPTIONS

(N) :

"N" =

designates Negatve Logic Enable (default is Positive Enable with no suffix “N” required)

(6)

:

“-6” =

3.7mm nominal pin length (default is 5mm nominal pin length with no suffix “-6” required)

(S) :

“-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)

Pin Assignments

Single Output

1.

+ Vin

2.

Enable

3.

- Vin

4.

- Vout

5.

- Sense

6.

Trim

7.

+ Sense

8.

+Vout

Notes:

1. Measured at 20MHz bandwidth with external 10

µF

tant. capacitor in parallel with 0.1

µF ceramic

capacitor placed across +Vout and -Vout; 33

µF e-cap

or equivalent placed across +Vin and -Vin.

2. Efficiency measurements taken at full load, nominal

3. All specifications are typical at nominal line, full load

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).

5. Technical reference Notes should be consulted for

detailed information when available.

6. All specifications subject to change without notice.

7. Warranty 1 yr.

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)

Pin 1

Pin 8

TH Termination

0.60

[15.2]

0.30

[7.6]

0.15

[3.8]

0.10

[2.5]

SIDE VIEW

PINSIDE UP

0.60

[15.2]

0.45

[11.4]

0.30

[7.6]

0.15

[3.8]

0.15

[3.8]

1.10

[27.9]

0.10

[2.5]

PIN SIDE UP

SMT Termination

0.90 [22.9]

PIN SIDE DOW N

1.30 [33.0]

See A

PIN LENGTH

A

Std Pin Length: 0.189 [4.8] MIN

0.205 [5.2] MAX

“-6” Option:

0.137 [3.5] MIN

0.152 [3.9] MAX

0.06 [1.4]

0.30 [7.6]

0.30 [7.6]

0.10 [2.5]

0.15 [3.8]

0.60 [15.2]

0.45 [11.4]

0.15 [3.8]

0.30 [7.6]

0.15 [3.8]

1.10 [27.9]

PIN SIDE UP