Product # PQ60025EKx20

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-0005112 Rev. C

06/12/09

Page 9

Input:

Output:

Current:

Part No.:

35-75V

2.5V

20A

PQ60025EKx20

Technical Specification

0

1

2

3

4

5

6

7

8

9

10

11

12

40.0

39.5

39.0

38.5

38.0

37.5

37.0

36.6

36.0

35.5

35.0

Input Voltage (V)

100% Load

50% Load

0% Load

source

impedance

DC/DC

Converter

See Fig. 15

See Fig. 14

See Fig. 16

ceramic

capacitor

15 µF,

100mW ESR

tantalum

capacitor

47 µF,

<1W ESR

electrolytic

capacitor

Figure 13: Test set-up diagram showing measurement points for Input Terminal

Ripple Current (Figure 14), Input Reflected Ripple Current (Figure 15) and

Output Voltage Ripple (Figure 16).

Figure 14:

Input Terminal Ripple Current, ic, at full rated output current and

nominal input voltage with 10µH source impedance and 47µF electrolytic

capacitor (50 mA/div). See Figure 13.

Figure 15: Input reflected ripple current, is, through a 10 µH source

inductor, using a 47µF electrolytic input capacitor (5mA/div). See

Figure 13.

Figure 16: Output voltage ripple at nominal input voltage and rated

load current (50 mV/div). Load capacitance: 1µF ceramic capacitor and

15µF tantalum capacitor. Bandwidth: 20 MHz. See Figure 13.

Figure 17: Output voltage response to step-change in input voltage

(48V to 75V), at 20A load current. Load cap: 15µF tantalum capacitor

and 1uF ceramic cap. Ch 1: Vout (100mV/div), Ch 2: Vin (50V/div).

Figure 18: Achievable trim-up percentage vs. input voltage at 0%, 50% and

full load. Vin=35-40V.

PQ60025EKx20 Figures