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

3

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

Model Number

Voltage

Voltage

Current

3.0V to 3.6V

0.8V to 2.5V

22A

95%

ATH22T033- 9(S)(J)

4.5V to 5.5V

0.8V to 3.6V

22A

96%

ATH22T05 - 9(S)(J)

10.8V to 13.2V

1.2V to 5.5V

18A

95%

ATH18K12 - 9(S)(J)

OPTIONS:

“-9J”

- Output Trim, TH termination, Tray Packaging

“-9SJ”

- Output Trim, SMT termination, Tray Packaging

“-9S”

- Output Trim, SMT Ternination, T&R packaging

Pin Assignments

Single Output

PINS

GND

: 1

Vin

: 2

Inhibit

: 3

Vo Adjust

: 4

Vo Sense

: 5

Vout

: 6

GND

: 7

Track

: 8

Margin Down

: 9

Margin Up

: 10

Notes:

1. Nominal values apply with sense pins

connected to +Vout and Ground Return

with other control pins unconnected.

2. Pre-Bias startup capability exists for 3.3Vin

and 5Vin devices.

3. Output derating applies at elevated

ambient tempe rature.

4. Typical efficiency taken at 10A load, 2.5V

output (3.3Vin device); 10A load, 3.3V

output (5Vin device); 10Aload, 5V output

(12Vin device).

5. Consult the technical reference notes when

available.

6. Mechanical Dimensions are nominal values.

7. Auto-Track™ is a trademark of Texas

Instruments.

8. Specification subject to change without

notice.

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. (REV02: OCTOBER 21, 2004)

Through-hole and SMT Outline [in (mm)]