DC/DC Converters

ctparts.com

Manufacturer of Passive and Discrete Semiconductor Components

800-684-5322 Inside US

949-453-1811 Outside US

Copyright © 2006 by CT Magnetics, DBA Central Technologies. All rights reserved.

CT Magnetics reserves the right to make improvements or change specifications without notice

CENTRAL

OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT DETAILS

27.50

22.86

12.00

4.10

9.50

1.25

2.32

1 2

7 910

1.00ø+0.15/-0

2.54

Note: All Pins on a 2.54m pitch; all pin diameters are 0.50mm; all dimensions in mm.

Side View

Bottom View

CTDD2709SF-T1K-1 Package

CTDD2709SF-T1K-1 Footprint

1 2

7

9 10

8

6

6

8

PIN CONNECTIONS

1

Pin

Function

2

6 7 8 9 10

1

2

6

7

8

9

10

GND

Vin

Voi

0V1

CS

0V2

V02

11.27.06

CTDD2709SF-T1K-1 Series

Wide Input Isolated & Regulated

1W Output, Twin Output

+

C in

+

C out

+

+

C out

PIN

CS

CS CAP

0V1

0V2

Vout

Vout

DC

DC

DC

GND

V in

Figure 1

Vout

5V

9V

12V

15V

CS

47µF-100µF

22µF-47µF

Vin

(0+70°C)

(-40+85°C)

5V

&

12V

24V

&

48V

100µF

10µF

100µF

(electrolytic

capacitor)

47µF

(tantalum

capacitor)

CS Capacitor Table (table 1)

External Capacitor Table (table 2)

All the CTDD2709SF-T1K-1 Series have been tested according to the following recommended testing circuit before leaving

factory. This series should be tested under load. Never be tested under no load (See figure 1). If you want to further decrease

the input/output ripple, you can increase capacitance properly or choose capacitors with low ESR. However, the capacitance

should not be too high (See table 2). If you want to use the products in high EMI, please choose our metal packaged

products.

RECOMMENDED CIRCUIT