DC/DC Converter

Programmable, Single Output, 1.1V - 1.85Vout @ 60A

DC/DC Converter

12.0V input, 1.2 to 5.0V adjustable output, 20A or 55W

1150 Eglinton Avenue East

4607 S.E. International Way

Toronto, Ontario M3C 1H7

Milwaukie, Oregon 97222

1-866-740-1232

www.cdtechno-cps.com

1-971-206-2800

S020_084-S020-00_RevC_Jan12-2005.fm

6 of 9

2

4

6

8

10

12 14

16

18

20

Output Current (A)

Approximate ripple

current ratings required

for input bulk capacitor.

Input Ripple Current

DC Input Reflected Ripple

Ltest = 500nH

Cs = 270µF Esr < 0.1 ohm at 100kHz 20°C

C1 = 270µF Esr < 0.02 ohm at 100kHz 20°C , C2 = 2µF ceramic

Tektronix current Probe P/N TCP202

Filter components should be mounted close to the module.

0.5µH

DC Voltage Regulation

The DC output voltages will remain within the regulation ranges shown in the following table

when measured at the load end of the connector. Connect Set Resistor per table below from

Trim (Pin4) to Ground (Pin7). Regulation range includes output voltage Set Point, Line

Regulation & Load Regulation over the temperature range.

Output Level

Minimum

Maximum

Set Resistor (1%tol)

+5V

-3%

+3%

309

Ω

+3.3V

-3%

+3%

562

Ω

+2.5V

-3%

+3%

909

Ω

+1.8V

-3%

+3%

1.96k

Ω

1.5V

-3%

+3%

3.92k

Ω

1.25V

-3%

+3%

23.7k

Ω

1.2V

-3%

+3%

Open ( no resistor)

The above regulations should be for all operating conditions.

Maximum reflected current ripple will not exceed 150mA (pk-pk) 5Hz to 20MHz per test setup

indicated below.

0.992

5.62k

0.992

Rset

1.18k + 0.992

+

(

4.0

3.0

2.0

1.0

0

Vo

=2

.5

Vo

=1

.5

5.0

6.0

7.0