DC/DC Converter

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

DC/DC Converter

12V Input, 1.2 - 5.0V Adjustable Output, 16A or 45W

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

S016_084-S016-00_RevG_Jan12-2005.fm

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PWRGD - Power Good Signal

The power good signal will be asserted, driven high, by the converter to indicate that the output is

valid. If the output fails the specified DC voltage regulation limits or the output is below 90% of

the nominal voltage, then the PWRGD signal will be driven low.

The output is an open collector/drain. It is capable of driving the output below 0.4V with a load of

4mA.

PWRGD_SET - Power Good Signal Levelset

The section sets the Power Good signal levels with a single resistor connected between the

PWRGD_SET (Pin9) and Ground (Pin7). Note fault condition is Low signal on PWRGD_SET.

OUTPUT VOLTAGE

PWRGD_SET RESISTOR (1%tol)

5V

SHORT ( Zero Ohm)

3.3V

1.78K

2.5V

4.22K

1.8V

11.8K

1.25V

169K

1.2V

Open

Logic Timings

90%

OUTPUT

PWRGD

On

Off

T3

10%

DC Vin

ENABLE

ON

T7

Off

Output Rise Time

0ms < T2 < 5ms

PWRGD Delay

0ms < T3 < 10ms

ENABLE-TO-OUTPUT DELAY

0ms < T7 < 100ms

PWRGD_Threshold

⋅

1.24

⋅

Rset

+

18.86 10

6

−

⋅

−

⎛⎜

⎝

⎞⎟

⎠

⋅

1.24

+

:=